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 865-912 of 1467 APIs

Free

Nutritionix is an API listed in the Health category that provides access to worlds largest verified nutrition database. It is intended for developers who want to integrate this type of health 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 Nutritionix a useful integration candidate when a project needs worlds largest verified nutrition database 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.

Health`apiKey`true

Open Data NHS Scotland is an API listed in the Health category that provides access to medical reference data and statistics by Public Health Scotland. It is intended for developers who want to integrate this type of health 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 Open Data NHS Scotland a useful integration candidate when a project needs medical reference data and statistics by Public Health Scotland 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.

HealthNotrue
Free

Open Disease is an API listed in the Health category that provides access to API for Current cases and more stuff about COVID-19 and Influenza. It is intended for developers who want to integrate this type of health 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 Open Disease a useful integration candidate when a project needs API for Current cases and more stuff about COVID-19 and Influenza 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.

HealthNotrue
openFDA logo

openFDA

Health

Free

openFDA is an API listed in the Health category that provides access to public FDA data about drugs, devices and foods. It is intended for developers who want to integrate this type of health 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 openFDA a useful integration candidate when a project needs public FDA data about drugs, devices and foods 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.

Health`apiKey`true
Free

Orion Health is an API listed in the Health category that provides access to medical platform which allows the development of applications for different healthcare scenarios. It is intended for developers who want to integrate this type of health 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 Orion Health a useful integration candidate when a project needs medical platform which allows the development of applications for different healthcare scenarios 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.

Health`OAuth`true
Free

Quarantine is an API listed in the Health category that provides access to coronavirus API with free COVID-19 live updates. It is intended for developers who want to integrate this type of health 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 Quarantine a useful integration candidate when a project needs coronavirus API with free COVID-19 live updates 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.

HealthNotrue
Free

AI Dev Jobs is an API listed in the Jobs category that provides access to AI/ML engineering job aggregator with REST, RSS, and MCP endpoints. It is intended for developers who want to integrate this type of jobs 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 AI Dev Jobs a useful integration candidate when a project needs AI/ML engineering job aggregator with REST, RSS, and MCP 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.

JobsNotrue
Adzuna logo

Adzuna

Jobs

Free

Adzuna is an API listed in the Jobs category that provides access to job board aggregator. It is intended for developers who want to integrate this type of jobs 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 Adzuna a useful integration candidate when a project needs job board aggregator 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.

Jobs`apiKey`true
Free

Arbeitnow is an API listed in the Jobs category that provides access to API for Job board aggregator in Europe / Remote. It is intended for developers who want to integrate this type of jobs 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 Arbeitnow a useful integration candidate when a project needs API for Job board aggregator in Europe / Remote 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.

JobsNotrue
Free

Arbeitsamt is an API listed in the Jobs category that provides access to API for the "Arbeitsamt", which is a german Job board aggregator. It is intended for developers who want to integrate this type of jobs 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 Arbeitsamt a useful integration candidate when a project needs API for the "Arbeitsamt", which is a german Job board aggregator 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.

Jobs`OAuth`true
Free

Careerjet is an API listed in the Jobs category that provides access to job search engine. It is intended for developers who want to integrate this type of jobs 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 unavailable. This makes Careerjet a useful integration candidate when a project needs job search engine 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.

Jobs`apiKey`false
Free

DevITjobs UK is an API listed in the Jobs category that provides access to jobs with GraphQL. It is intended for developers who want to integrate this type of jobs 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 DevITjobs UK a useful integration candidate when a project needs jobs with GraphQL 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.

JobsNotrue
Free

Findwork is an API listed in the Jobs category that provides access to job board. It is intended for developers who want to integrate this type of jobs 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 Findwork a useful integration candidate when a project needs job board 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.

Jobs`apiKey`true
Free

GraphQL Jobs is an API listed in the Jobs category that provides access to jobs with GraphQL. It is intended for developers who want to integrate this type of jobs 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 GraphQL Jobs a useful integration candidate when a project needs jobs with GraphQL 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.

JobsNotrue

HeroHunt People Search is an API listed in the Jobs category that provides access to search 1 billion people profiles across LinkedIn and GitHub for talent sourcing. It is intended for developers who want to integrate this type of jobs 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 HeroHunt People Search a useful integration candidate when a project needs search 1 billion people profiles across LinkedIn and GitHub for talent sourcing 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.

Jobs`apiKey`true
Free

Jobs2Careers is an API listed in the Jobs category that provides access to job aggregator. It is intended for developers who want to integrate this type of jobs 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 Jobs2Careers a useful integration candidate when a project needs job aggregator 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.

Jobs`apiKey`true
Jooble logo

Jooble

Jobs

Free

Jooble is an API listed in the Jobs category that provides access to job search engine. It is intended for developers who want to integrate this type of jobs 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 Jooble a useful integration candidate when a project needs job search engine 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.

Jobs`apiKey`true
Juju logo

Juju

Jobs

Free

Juju is an API listed in the Jobs category that provides access to job search engine. It is intended for developers who want to integrate this type of jobs 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 unavailable. This makes Juju a useful integration candidate when a project needs job search engine 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.

Jobs`apiKey`false
Free

Open Skills is an API listed in the Jobs category that provides access to job titles, skills and related jobs data. It is intended for developers who want to integrate this type of jobs 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 unavailable. This makes Open Skills a useful integration candidate when a project needs job titles, skills and related jobs data 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.

JobsNofalse
Reed logo

Reed

Jobs

Free

Reed is an API listed in the Jobs category that provides access to job board aggregator. It is intended for developers who want to integrate this type of jobs 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 Reed a useful integration candidate when a project needs job board aggregator 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.

Jobs`apiKey`true
Free

The Muse is an API listed in the Jobs category that provides access to job board and company profiles. It is intended for developers who want to integrate this type of jobs 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 The Muse a useful integration candidate when a project needs job board and company profiles 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.

Jobs`apiKey`true
Upwork logo

Upwork

Jobs

Free

Upwork is an API listed in the Jobs category that provides access to freelance job board and management system. It is intended for developers who want to integrate this type of jobs 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 Upwork a useful integration candidate when a project needs freelance job board and management system 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.

Jobs`OAuth`true
Free

USAJOBS is an API listed in the Jobs category that provides access to US government job board. It is intended for developers who want to integrate this type of jobs 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 USAJOBS a useful integration candidate when a project needs US government job board 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.

Jobs`apiKey`true
Free

WhatJobs is an API listed in the Jobs category that provides access to job search engine. It is intended for developers who want to integrate this type of jobs 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 WhatJobs a useful integration candidate when a project needs job search engine 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.

Jobs`apiKey`true
Free

ZipRecruiter is an API listed in the Jobs category that provides access to job search app and website. It is intended for developers who want to integrate this type of jobs 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 ZipRecruiter a useful integration candidate when a project needs job search app and 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.

Jobs`apiKey`true
AI For Thai logo

AI For Thai

Machine Learning

Free

AI For Thai is an API listed in the Machine Learning category that provides access to free Various Thai AI API. It is intended for developers who want to integrate this type of machine learning 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 AI For Thai a useful integration candidate when a project needs free Various Thai AI 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.

Machine Learning`apiKey`true
Clarifai logo

Clarifai

Machine Learning

Free

Clarifai is an API listed in the Machine Learning category that provides access to computer Vision. It is intended for developers who want to integrate this type of machine learning 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 Clarifai a useful integration candidate when a project needs computer Vision 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.

Machine Learning`OAuth`true
Cloudmersive logo

Cloudmersive

Machine Learning

Free

Cloudmersive is an API listed in the Machine Learning category that provides access to image captioning, face recognition, NSFW classification. It is intended for developers who want to integrate this type of machine learning 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 Cloudmersive a useful integration candidate when a project needs image captioning, face recognition, NSFW classification 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.

Machine Learning`apiKey`true
DeepAI logo

DeepAI

Machine Learning

Free

DeepAI is an API listed in the Machine Learning category that provides access to provides AI-powered APIs for text generation, image processing, and more. It is intended for developers who want to integrate this type of machine learning 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 DeepAI a useful integration candidate when a project needs provides AI-powered APIs for text generation, image processing, and more 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.

Machine Learning`apiKey`true
Deepcode logo

Deepcode

Machine Learning

Free

Deepcode is an API listed in the Machine Learning category that provides access to AI for code review. It is intended for developers who want to integrate this type of machine learning 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 Deepcode a useful integration candidate when a project needs AI for code review 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.

Machine LearningNotrue
Dialogflow logo

Dialogflow

Machine Learning

Free

Dialogflow is an API listed in the Machine Learning category that provides access to natural Language Processing. It is intended for developers who want to integrate this type of machine learning 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 Dialogflow a useful integration candidate when a project needs natural Language Processing 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.

Machine Learning`apiKey`true
EXUDE-API logo

EXUDE-API

Machine Learning

Free

EXUDE-API is an API listed in the Machine Learning category that provides access to used for the primary ways for filtering the stopping, stemming words from the text data. It is intended for developers who want to integrate this type of machine learning 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 EXUDE-API a useful integration candidate when a project needs used for the primary ways for filtering the stopping, stemming words from the text data 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.

Machine LearningNotrue
Groq logo

Groq

Machine Learning

Free

Groq is an API listed in the Machine Learning category that provides access to fast AI inference API with free tier, supports Llama, Mixtral, Gemma models. It is intended for developers who want to integrate this type of machine learning 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 Groq a useful integration candidate when a project needs fast AI inference API with free tier, supports Llama, Mixtral, Gemma models 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.

Machine Learning`apiKey`true
Hirak FaceAPI logo

Hirak FaceAPI

Machine Learning

Free

Hirak FaceAPI is an API listed in the Machine Learning category that provides access to face detection, face recognition with age estimation/gender estimation, accurate, no quota limits. It is intended for developers who want to integrate this type of machine learning 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 Hirak FaceAPI a useful integration candidate when a project needs face detection, face recognition with age estimation/gender estimation, accurate, no quota limits 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.

Machine Learning`apiKey`true
Hugging Face logo

Hugging Face

Machine Learning

Free

Hugging Face is an API listed in the Machine Learning category that provides access to AI model hub with inference API for NLP, computer vision, and audio. It is intended for developers who want to integrate this type of machine learning 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 Hugging Face a useful integration candidate when a project needs AI model hub with inference API for NLP, computer vision, and audio 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.

Machine Learning`apiKey`true
Imagga logo

Imagga

Machine Learning

Free

Imagga is an API listed in the Machine Learning category that provides access to image Recognition Solutions like Tagging, Visual Search, NSFW moderation. It is intended for developers who want to integrate this type of machine learning 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 Imagga a useful integration candidate when a project needs image Recognition Solutions like Tagging, Visual Search, NSFW moderation 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.

Machine Learning`apiKey`true
Inferdo logo

Inferdo

Machine Learning

Free

Inferdo is an API listed in the Machine Learning category that provides access to computer Vision services like Facial detection, Image labeling, NSFW classification. It is intended for developers who want to integrate this type of machine learning 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 Inferdo a useful integration candidate when a project needs computer Vision services like Facial detection, Image labeling, NSFW classification 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.

Machine Learning`apiKey`true
IPS Online logo

IPS Online

Machine Learning

Free

IPS Online is an API listed in the Machine Learning category that provides access to face and License Plate Anonymization. It is intended for developers who want to integrate this type of machine learning 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 IPS Online a useful integration candidate when a project needs face and License Plate Anonymization 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.

Machine Learning`apiKey`true
Irisnet logo

Irisnet

Machine Learning

Free

Irisnet is an API listed in the Machine Learning category that provides access to realtime content moderation API that blocks or blurs unwanted images in real-time. It is intended for developers who want to integrate this type of machine learning 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 Irisnet a useful integration candidate when a project needs realtime content moderation API that blocks or blurs unwanted images in real-time 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.

Machine Learning`apiKey`true
Keen IO logo

Keen IO

Machine Learning

Free

Keen IO is an API listed in the Machine Learning category that provides access to data Analytics. It is intended for developers who want to integrate this type of machine learning 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 Keen IO a useful integration candidate when a project needs data Analytics 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.

Machine Learning`apiKey`true
Machinetutors logo

Machinetutors

Machine Learning

Free

Machinetutors is an API listed in the Machine Learning category that provides access to AI Solutions: Video/Image Classification & Tagging, NSFW, Icon/Image/Audio Search, NLP. It is intended for developers who want to integrate this type of machine learning 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 Machinetutors a useful integration candidate when a project needs AI Solutions: Video/Image Classification & Tagging, NSFW, Icon/Image/Audio Search, NLP 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.

Machine Learning`apiKey`true
MessengerX.io logo

MessengerX.io

Machine Learning

Free

MessengerX.io is an API listed in the Machine Learning category that provides access to a FREE API for developers to build and monetize personalized ML based chat apps. It is intended for developers who want to integrate this type of machine learning 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 MessengerX.io a useful integration candidate when a project needs a FREE API for developers to build and monetize personalized ML based chat 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.

Machine Learning`apiKey`true
NLP Cloud logo

NLP Cloud

Machine Learning

Free

NLP Cloud is an API listed in the Machine Learning category that provides access to NLP API using spaCy and transformers for NER, sentiments, classification, summarization, and more. It is intended for developers who want to integrate this type of machine learning 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 NLP Cloud a useful integration candidate when a project needs NLP API using spaCy and transformers for NER, sentiments, classification, summarization, and more 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.

Machine Learning`apiKey`true
OpenVisionAPI logo

OpenVisionAPI

Machine Learning

Free

OpenVisionAPI is an API listed in the Machine Learning category that provides access to open source computer vision API based on open source models. It is intended for developers who want to integrate this type of machine learning 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 OpenVisionAPI a useful integration candidate when a project needs open source computer vision API based on open source models 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.

Machine LearningNotrue
Perspective logo

Perspective

Machine Learning

Free

Perspective is an API listed in the Machine Learning category that provides access to NLP API to return probability that if text is toxic, obscene, insulting or threatening. It is intended for developers who want to integrate this type of machine learning 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 Perspective a useful integration candidate when a project needs NLP API to return probability that if text is toxic, obscene, insulting or threatening 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.

Machine Learning`apiKey`true
Roboflow Universe logo

Roboflow Universe

Machine Learning

Free

Roboflow Universe is an API listed in the Machine Learning category that provides access to pre-trained computer vision models. It is intended for developers who want to integrate this type of machine learning 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 Roboflow Universe a useful integration candidate when a project needs pre-trained computer vision models 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.

Machine Learning`apiKey`true
SkyBiometry logo

SkyBiometry

Machine Learning

Free

SkyBiometry is an API listed in the Machine Learning category that provides access to face Detection, Face Recognition and Face Grouping. It is intended for developers who want to integrate this type of machine learning 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 SkyBiometry a useful integration candidate when a project needs face Detection, Face Recognition and Face Grouping 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.

Machine Learning`apiKey`true
TensorFeed logo

TensorFeed

Machine Learning

Free

TensorFeed is an API listed in the Machine Learning category that provides access to real-time AI news, model pricing, service status, and agent activity feeds. It is intended for developers who want to integrate this type of machine learning 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 TensorFeed a useful integration candidate when a project needs real-time AI news, model pricing, service status, and agent activity feeds 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.

Machine LearningNotrue

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.