Stack Exchange API

Dev ToolsAnonymous access is highly rate-limited; registered users get more.

Accesses data from all sites in the Stack Exchange network (Stack Overflow, etc.).

#Dev Tools#Stack Exchange

Pricing: Anonymous access is highly rate-limited; registered users get more.

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Dev Tools

Free

REST API for retrieving user, repository, and issue information from GitHub.

Dev ToolsGitHub

https://docs.github.com/en/rest

Dev Tools

Free

Manages email lists, campaigns, and subscriber data programmatically.

Dev ToolsMailchimp

https://mailchimp.com/developer/marketing/api/

Dev Tools

Free

Communication API for sending SMS, making voice calls, and building messaging apps.

Dev ToolsTwilio

https://www.twilio.com/docs/usage/api