Best Free APIs Directory

Find free APIs for AI, weather, finance, and development projects in our curated directory.

The Best Free APIs for Developers

Find the perfect free API for your next project. Our curated directory features hundreds of free APIs across AI, weather, finance, and developer tools - all verified to offer genuine free tiers without credit card requirements.

Whether you need AI APIs for natural language processing, Weather APIs for forecasts and historical data, Finance APIs for stock and crypto data, or Developer APIs for GitHub integration and more - we have you covered.

Pro tip: Each API card includes a copy button for the endpoint URL. Click to copy and integrate into your projects quickly.

Showing 337-384 of 1467 APIs

import.io logo

import.io

Development

Free

import.io is an API listed in the Development category that provides access to retrieve structured data from a website or RSS feed. It is intended for developers who want to integrate this type of development data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies apiKey as the authentication method; HTTPS support is listed as available. This makes import.io a useful integration candidate when a project needs retrieve structured data from a website or RSS feed through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.

Development`apiKey`true
ip-fast.com logo

ip-fast.com

Development

Free

ip-fast.com is an API listed in the Development category that provides access to IP address, country and city. It is intended for developers who want to integrate this type of development data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing indicates that authentication is not required; HTTPS support is listed as available; CORS is listed as Yes. This makes ip-fast.com a useful integration candidate when a project needs IP address, country and city through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.

DevelopmentNotrue

IP2WHOIS Information Lookup is an API listed in the Development category that provides access to WHOIS domain name lookup. It is intended for developers who want to integrate this type of development data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies apiKey as the authentication method; HTTPS support is listed as available. This makes IP2WHOIS Information Lookup a useful integration candidate when a project needs WHOIS domain name lookup through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.

Development`apiKey`true
ipfind.io logo

ipfind.io

Development

Free

ipfind.io is an API listed in the Development category that provides access to geographic location of an IP address or any domain name along with some other useful information. It is intended for developers who want to integrate this type of development data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies apiKey as the authentication method; HTTPS support is listed as available; CORS is listed as Yes. This makes ipfind.io a useful integration candidate when a project needs geographic location of an IP address or any domain name along with some other useful information through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.

Development`apiKey`true
IPify logo

IPify

Development

Free

IPify is an API listed in the Development category that provides access to a simple IP Address API. It is intended for developers who want to integrate this type of development data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing indicates that authentication is not required; HTTPS support is listed as available. This makes IPify a useful integration candidate when a project needs a simple IP Address API through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.

DevelopmentNotrue
IPinfo logo

IPinfo

Development

Free

IPinfo is an API listed in the Development category that provides access to another simple IP Address API. It is intended for developers who want to integrate this type of development data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing indicates that authentication is not required; HTTPS support is listed as available. This makes IPinfo a useful integration candidate when a project needs another simple IP Address API through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.

DevelopmentNotrue
isitdownstatus logo

isitdownstatus

Development

Free

isitdownstatus is an API listed in the Development category that provides access to check if websites and online services are currently down. It is intended for developers who want to integrate this type of development data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing indicates that authentication is not required; HTTPS support is listed as available. This makes isitdownstatus a useful integration candidate when a project needs check if websites and online services are currently down through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.

DevelopmentNotrue
jsDelivr logo

jsDelivr

Development

Free

jsDelivr is an API listed in the Development category that provides access to package info and download stats on jsDelivr CDN. It is intended for developers who want to integrate this type of development data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing indicates that authentication is not required; HTTPS support is listed as available; CORS is listed as Yes. This makes jsDelivr a useful integration candidate when a project needs package info and download stats on jsDelivr CDN through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.

DevelopmentNotrue
JSON 2 JSONP logo

JSON 2 JSONP

Development

Free

JSON 2 JSONP is an API listed in the Development category that provides access to convert JSON to JSONP (on-the-fly) for easy cross-domain data requests using client-side JavaScript. It is intended for developers who want to integrate this type of development data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing indicates that authentication is not required; HTTPS support is listed as available. This makes JSON 2 JSONP a useful integration candidate when a project needs convert JSON to JSONP (on-the-fly) for easy cross-domain data requests using client-side JavaScript through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.

DevelopmentNotrue
JSONbin.io logo

JSONbin.io

Development

Free

JSONbin.io is an API listed in the Development category that provides access to free JSON storage service. Ideal for small scale Web apps, Websites and Mobile apps. It is intended for developers who want to integrate this type of development data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies apiKey as the authentication method; HTTPS support is listed as available; CORS is listed as Yes. This makes JSONbin.io a useful integration candidate when a project needs free JSON storage service. Ideal for small scale Web apps, Websites and Mobile apps through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.

Development`apiKey`true
JSONPlaceholder logo

JSONPlaceholder

Development

Free

JSONPlaceholder is an API listed in the Development category that provides access to fake REST API for testing and prototyping. It is intended for developers who want to integrate this type of development data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing indicates that authentication is not required; HTTPS support is listed as available; CORS is listed as Yes. This makes JSONPlaceholder a useful integration candidate when a project needs fake REST API for testing and prototyping through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.

DevelopmentNotrue
Kroki logo

Kroki

Development

Free

Kroki is an API listed in the Development category that provides access to creates diagrams from textual descriptions. It is intended for developers who want to integrate this type of development data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing indicates that authentication is not required; HTTPS support is listed as available; CORS is listed as Yes. This makes Kroki a useful integration candidate when a project needs creates diagrams from textual descriptions through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.

DevelopmentNotrue
License-API logo

License-API

Development

Free

License-API is an API listed in the Development category that provides access to unofficial REST API for choosealicense.com. It is intended for developers who want to integrate this type of development data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing indicates that authentication is not required; HTTPS support is listed as available; CORS is listed as No. This makes License-API a useful integration candidate when a project needs unofficial REST API for choosealicense.com through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.

DevelopmentNotrue
Logs.to logo

Logs.to

Development

Free

Logs.to is an API listed in the Development category that provides access to generate logs. It is intended for developers who want to integrate this type of development data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies apiKey as the authentication method; HTTPS support is listed as available. This makes Logs.to a useful integration candidate when a project needs generate logs through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.

Development`apiKey`true
Lua Decompiler logo

Lua Decompiler

Development

Free

Lua Decompiler is an API listed in the Development category that provides access to online Lua 5.1 Decompiler. It is intended for developers who want to integrate this type of development data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing indicates that authentication is not required; HTTPS support is listed as available; CORS is listed as Yes. This makes Lua Decompiler a useful integration candidate when a project needs online Lua 5.1 Decompiler through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.

DevelopmentNotrue

MAC address vendor lookup is an API listed in the Development category that provides access to retrieve vendor details and other information regarding a given MAC address or an OUI. It is intended for developers who want to integrate this type of development data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies apiKey as the authentication method; HTTPS support is listed as available; CORS is listed as Yes. This makes MAC address vendor lookup a useful integration candidate when a project needs retrieve vendor details and other information regarding a given MAC address or an OUI through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.

Development`apiKey`true
Micro DB logo

Micro DB

Development

Free

Micro DB is an API listed in the Development category that provides access to simple database service. It is intended for developers who want to integrate this type of development data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies apiKey as the authentication method; HTTPS support is listed as available. This makes Micro DB a useful integration candidate when a project needs simple database service through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.

Development`apiKey`true
MicroENV logo

MicroENV

Development

Free

MicroENV is an API listed in the Development category that provides access to fake Rest API for developers. It is intended for developers who want to integrate this type of development data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing indicates that authentication is not required; HTTPS support is listed as available. This makes MicroENV a useful integration candidate when a project needs fake Rest API for developers through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.

DevelopmentNotrue
Mocky logo

Mocky

Development

Free

Mocky is an API listed in the Development category that provides access to mock user defined test JSON for REST API endpoints. It is intended for developers who want to integrate this type of development data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing indicates that authentication is not required; HTTPS support is listed as available; CORS is listed as Yes. This makes Mocky a useful integration candidate when a project needs mock user defined test JSON for REST API endpoints through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.

DevelopmentNotrue
MY IP logo

MY IP

Development

Free

MY IP is an API listed in the Development category that provides access to get IP address information. It is intended for developers who want to integrate this type of development data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing indicates that authentication is not required; HTTPS support is listed as available. This makes MY IP a useful integration candidate when a project needs get IP address information through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.

DevelopmentNotrue
Nationalize.io logo

Nationalize.io

Development

Free

Nationalize.io is an API listed in the Development category that provides access to estimate the nationality of a first name. It is intended for developers who want to integrate this type of development data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing indicates that authentication is not required; HTTPS support is listed as available; CORS is listed as Yes. This makes Nationalize.io a useful integration candidate when a project needs estimate the nationality of a first name through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.

DevelopmentNotrue
Netlify logo

Netlify

Development

Free

Netlify is an API listed in the Development category that provides access to netlify is a hosting service for the programmable web. It is intended for developers who want to integrate this type of development data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies OAuth as the authentication method; HTTPS support is listed as available. This makes Netlify a useful integration candidate when a project needs netlify is a hosting service for the programmable web through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.

Development`OAuth`true
NetworkCalc logo

NetworkCalc

Development

Free

NetworkCalc is an API listed in the Development category that provides access to network calculators, including subnets, DNS, binary, and security tools. It is intended for developers who want to integrate this type of development data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing indicates that authentication is not required; HTTPS support is listed as available; CORS is listed as Yes. This makes NetworkCalc a useful integration candidate when a project needs network calculators, including subnets, DNS, binary, and security tools through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.

DevelopmentNotrue
npm Registry logo

npm Registry

Development

Free

npm Registry is an API listed in the Development category that provides access to query information about your favorite Node.js libraries programatically. It is intended for developers who want to integrate this type of development data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing indicates that authentication is not required; HTTPS support is listed as available. This makes npm Registry a useful integration candidate when a project needs query information about your favorite Node.js libraries programatically through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.

DevelopmentNotrue
OneSignal logo

OneSignal

Development

Free

OneSignal is an API listed in the Development category that provides access to self-serve customer engagement solution for Push Notifications, Email, SMS & In-App. It is intended for developers who want to integrate this type of development data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies apiKey as the authentication method; HTTPS support is listed as available. This makes OneSignal a useful integration candidate when a project needs self-serve customer engagement solution for Push Notifications, Email, SMS & In-App through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.

Development`apiKey`true
Open Page Rank logo

Open Page Rank

Development

Free

Open Page Rank is an API listed in the Development category that provides access to API for calculating and comparing metrics of different websites using Page Rank algorithm. It is intended for developers who want to integrate this type of development data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies apiKey as the authentication method; HTTPS support is listed as available. This makes Open Page Rank a useful integration candidate when a project needs API for calculating and comparing metrics of different websites using Page Rank algorithm through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.

Development`apiKey`true
OpenAPIHub logo

OpenAPIHub

Development

Free

OpenAPIHub is an API listed in the Development category that provides access to the All-in-one API Platform. It is intended for developers who want to integrate this type of development data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies X-Mashape-Key as the authentication method; HTTPS support is listed as available. This makes OpenAPIHub a useful integration candidate when a project needs the All-in-one API Platform through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.

Development`X-Mashape-Key`true
OpenGraphr logo

OpenGraphr

Development

Free

OpenGraphr is an API listed in the Development category that provides access to really simple API to retrieve Open Graph data from an URL. It is intended for developers who want to integrate this type of development data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies apiKey as the authentication method; HTTPS support is listed as available. This makes OpenGraphr a useful integration candidate when a project needs really simple API to retrieve Open Graph data from an URL through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.

Development`apiKey`true
oyyi logo

oyyi

Development

Free

oyyi is an API listed in the Development category that provides access to API for Fake Data, image/video conversion, optimization, pdf optimization and thumbnail generation. It is intended for developers who want to integrate this type of development data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing indicates that authentication is not required; HTTPS support is listed as available; CORS is listed as Yes. This makes oyyi a useful integration candidate when a project needs API for Fake Data, image/video conversion, optimization, pdf optimization and thumbnail generation through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.

DevelopmentNotrue
PageCDN logo

PageCDN

Development

Free

PageCDN is an API listed in the Development category that provides access to public API for javascript, css and font libraries on PageCDN. It is intended for developers who want to integrate this type of development data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies apiKey as the authentication method; HTTPS support is listed as available; CORS is listed as Yes. This makes PageCDN a useful integration candidate when a project needs public API for javascript, css and font libraries on PageCDN through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.

Development`apiKey`true
Postman logo

Postman

Development

Free

Postman is an API listed in the Development category that provides access to tool for testing APIs. It is intended for developers who want to integrate this type of development data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies apiKey as the authentication method; HTTPS support is listed as available. This makes Postman a useful integration candidate when a project needs tool for testing APIs through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.

Development`apiKey`true
ProxyCrawl logo

ProxyCrawl

Development

Free

ProxyCrawl is an API listed in the Development category that provides access to scraping and crawling anticaptcha service. It is intended for developers who want to integrate this type of development data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies apiKey as the authentication method; HTTPS support is listed as available. This makes ProxyCrawl a useful integration candidate when a project needs scraping and crawling anticaptcha service through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.

Development`apiKey`true
ProxyKingdom logo

ProxyKingdom

Development

Free

ProxyKingdom is an API listed in the Development category that provides access to rotating Proxy API that produces a working proxy on every request. It is intended for developers who want to integrate this type of development data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies apiKey as the authentication method; HTTPS support is listed as available; CORS is listed as Yes. This makes ProxyKingdom a useful integration candidate when a project needs rotating Proxy API that produces a working proxy on every request through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.

Development`apiKey`true
Pusher Beams logo

Pusher Beams

Development

Free

Pusher Beams is an API listed in the Development category that provides access to push notifications for Android & iOS. It is intended for developers who want to integrate this type of development data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies apiKey as the authentication method; HTTPS support is listed as available. This makes Pusher Beams a useful integration candidate when a project needs push notifications for Android & iOS through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.

Development`apiKey`true
QR code logo

QR code

Development

Free

QR code is an API listed in the Development category that provides access to create an easy to read QR code and URL shortener. It is intended for developers who want to integrate this type of development data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing indicates that authentication is not required; HTTPS support is listed as available; CORS is listed as Yes. This makes QR code a useful integration candidate when a project needs create an easy to read QR code and URL shortener through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.

DevelopmentNotrue
Qrcode Monkey logo

Qrcode Monkey

Development

Free

Qrcode Monkey is an API listed in the Development category that provides access to integrate custom and unique looking QR codes into your system or workflow. It is intended for developers who want to integrate this type of development data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing indicates that authentication is not required; HTTPS support is listed as available. This makes Qrcode Monkey a useful integration candidate when a project needs integrate custom and unique looking QR codes into your system or workflow through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.

DevelopmentNotrue
QuickChart logo

QuickChart

Development

Free

QuickChart is an API listed in the Development category that provides access to generate chart and graph images. It is intended for developers who want to integrate this type of development data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing indicates that authentication is not required; HTTPS support is listed as available; CORS is listed as Yes. This makes QuickChart a useful integration candidate when a project needs generate chart and graph images through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.

DevelopmentNotrue
Random Stuff logo

Random Stuff

Development

Free

Random Stuff is an API listed in the Development category that provides access to can be used to get AI Response, jokes, memes, and much more at lightning-fast speed. It is intended for developers who want to integrate this type of development data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies apiKey as the authentication method; HTTPS support is listed as available; CORS is listed as Yes. This makes Random Stuff a useful integration candidate when a project needs can be used to get AI Response, jokes, memes, and much more at lightning-fast speed through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.

Development`apiKey`true
Rejax logo

Rejax

Development

Free

Rejax is an API listed in the Development category that provides access to reverse AJAX service to notify clients. It is intended for developers who want to integrate this type of development data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies apiKey as the authentication method; HTTPS support is listed as available; CORS is listed as No. This makes Rejax a useful integration candidate when a project needs reverse AJAX service to notify clients through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.

Development`apiKey`true
ReqRes logo

ReqRes

Development

Free

ReqRes is an API listed in the Development category that provides access to a hosted REST-API ready to respond to your AJAX requests. It is intended for developers who want to integrate this type of development data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing indicates that authentication is not required; HTTPS support is listed as available. This makes ReqRes a useful integration candidate when a project needs a hosted REST-API ready to respond to your AJAX requests through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.

DevelopmentNotrue
RSS feed to JSON logo

RSS feed to JSON

Development

Free

RSS feed to JSON is an API listed in the Development category that provides access to returns RSS feed in JSON format using feed URL. It is intended for developers who want to integrate this type of development data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing indicates that authentication is not required; HTTPS support is listed as available; CORS is listed as Yes. This makes RSS feed to JSON a useful integration candidate when a project needs returns RSS feed in JSON format using feed URL through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.

DevelopmentNotrue
SavePage.io logo

SavePage.io

Development

Free

SavePage.io is an API listed in the Development category that provides access to a free, RESTful API used to screenshot any desktop, or mobile website. It is intended for developers who want to integrate this type of development data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies apiKey as the authentication method; HTTPS support is listed as available; CORS is listed as Yes. This makes SavePage.io a useful integration candidate when a project needs a free, RESTful API used to screenshot any desktop, or mobile website through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.

Development`apiKey`true
ScrapeNinja logo

ScrapeNinja

Development

Free

ScrapeNinja is an API listed in the Development category that provides access to scraping API with Chrome fingerprint and residential proxies. It is intended for developers who want to integrate this type of development data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies apiKey as the authentication method; HTTPS support is listed as available. This makes ScrapeNinja a useful integration candidate when a project needs scraping API with Chrome fingerprint and residential proxies through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.

Development`apiKey`true
ScraperApi logo

ScraperApi

Development

Free

ScraperApi is an API listed in the Development category that provides access to easily build scalable web scrapers. It is intended for developers who want to integrate this type of development data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies apiKey as the authentication method; HTTPS support is listed as available. This makes ScraperApi a useful integration candidate when a project needs easily build scalable web scrapers through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.

Development`apiKey`true
scraperBox logo

scraperBox

Development

Free

scraperBox is an API listed in the Development category that provides access to undetectable web scraping API. It is intended for developers who want to integrate this type of development data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies apiKey as the authentication method; HTTPS support is listed as available; CORS is listed as Yes. This makes scraperBox a useful integration candidate when a project needs undetectable web scraping API through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.

Development`apiKey`true
scrapestack logo

scrapestack

Development

Free

scrapestack is an API listed in the Development category that provides access to real-time, Scalable Proxy & Web Scraping REST API. It is intended for developers who want to integrate this type of development data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies apiKey as the authentication method; HTTPS support is listed as available. This makes scrapestack a useful integration candidate when a project needs real-time, Scalable Proxy & Web Scraping REST API through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.

Development`apiKey`true
ScrapingAnt logo

ScrapingAnt

Development

Free

ScrapingAnt is an API listed in the Development category that provides access to headless Chrome scraping with a simple API. It is intended for developers who want to integrate this type of development data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies apiKey as the authentication method; HTTPS support is listed as available. This makes ScrapingAnt a useful integration candidate when a project needs headless Chrome scraping with a simple API through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.

Development`apiKey`true
ScrapingDog logo

ScrapingDog

Development

Free

ScrapingDog is an API listed in the Development category that provides access to proxy API for Web scraping. It is intended for developers who want to integrate this type of development data or functionality into websites, mobile applications, dashboards, automation workflows, research projects, prototypes, or backend services without building the underlying data source or service from scratch. From the supplied API metadata, the supplied listing identifies apiKey as the authentication method; HTTPS support is listed as available. This makes ScrapingDog a useful integration candidate when a project needs proxy API for Web scraping through a programmatic interface. Because API capabilities, quotas, authentication rules, endpoints, and availability can change over time, the provider documentation should be treated as the current technical reference.

Development`apiKey`true

Frequently Asked Questions About Free APIs

What are the best free APIs for developers?

The best free APIs include OpenAI API (free tier), GitHub REST API, OpenWeather API, and Alpha Vantage for finance data. Our directory lists hundreds of free APIs across AI, weather, finance, and developer categories.

Do these APIs require a credit card?

Most APIs in our directory offer free tiers that don't require a credit card. Some may require registration for an API key, but you won't be charged for basic usage within their free limits.

How do I integrate these APIs into my project?

Each API listing includes the endpoint URL with a copy button. Click to copy the endpoint, then use it in your HTTP requests. Visit the API's documentation (linked on each page) for authentication details and usage examples.

What's the difference between free and paid API tiers?

Free API tiers typically have rate limits (requests per minute/day) and may offer fewer features. They're perfect for development, testing, and small projects. Paid tiers offer higher limits, more features, and SLAs for production use.

Can I use these APIs for commercial projects?

Most APIs allow commercial use on their free tiers, but check each API's terms of service. Some may require attribution or have specific usage restrictions for commercial applications.