Public APIs
Actively maintained
≈ 3.5kvisits/mo
Use not read yet · estimate, read Oct 15, 2026
- For
- developers and AI agents looking for free public APIs for their projects
- Activity
- Actively maintainedrelease 8 days ago
- Used for
- find free public APIs by category
- compare alternatives to a given API
- copy code examples to call an API
- Used more than 89% of the 2,073 tools on its shelfINITE Atlas →
- 489,000 stars on GitHubGitHub ↗
- Has an MCP server (1 in the registry)public registry →
- Publishes llms.txt, a file written for AI assistantspublicapis.io ↗
Price not read
- MCP serverio.publicapis/directoryverified in the MCP registry
- Stateanswers, 8 toolschecked 2026-10-16
- Address to connectpublicapis.io/mcp
- MCP docspublicapis.io/mcpthe vendor's page ↗
This card as JSON, for your agent →
Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.
Figure and bar: visits/mo, estimate · year: online since
- #1
GitHub
Hosts Git repositories with pull requests, code review, issue tracking and Actions pipelines for building, testing and deploying code.
42MFrom $4/user/mo2007 - #2
CloudflareMCP · open
Proxies website traffic through a global network for CDN caching, DNS, DDoS protection and a web firewall, plus Workers serverless code and zero-trust access.
4.9MActiveFrom $20/mo2009 - #3
Twilio
Sends and receives SMS, email, and voice messages through APIs and manages customer conversations with AI.
1.1MActiveFree plan2008 - #4
AI-Native Cloud
Rents cloud virtual machines (Droplets), managed Kubernetes, databases, object storage and app hosting, plus GPU instances and model inference endpoints.
603kActiveFrom $4/mo2011 - #5
TestMu AI (Formerly LambdaTest)
Runs manual and automated Selenium, Playwright, Cypress and Appium tests on cloud browsers and real mobile devices, with test agents for generating tests.
370kActiveFrom $17/mo2017 - #6
Browserbase
Provides browser automation and web interaction APIs for agents to navigate, extract data, and complete tasks on websites.
318kActiveFrom $20/mo
Not it? Say what you need
betaThree tools from the Atlas for the job you describe, each with what fits and what does not.
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Sign in to leave a noteWhat is Public APIs?
Catalogues over 1,500 free public REST APIs with category browsing, code examples and side-by-side comparisons. It is listed in the Atlas under Developer tools.
Who is Public APIs for?
developers and AI agents looking for free public APIs for their projects
Is Public APIs still maintained?
Actively maintained: release 8 days ago.
How we read a tool
No votes, no reviews, no vendor claims. Every week a crawler reads each tool's own site and a few public registries, and the words on the card are bands over what it read.
- Use: visits to the site (estimated), installs from npm and PyPI, presence in Chrome's usage report.
- Activity: the newest release on GitHub, npm or PyPI; the newest dated page on the site; open roles on a public jobs board.
- Price: the vendor's own pricing page, read with the date. A figure is printed only when it is on that page.
- The line and the use cases are written by us from the homepage, one tool at a time, and refused when they repeat the vendor's marketing.
How AI assistants read each site — the reading vendors ask us about — is on each tool's own visibility page.
How we read every tool → · By INITE Atlas Desk
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