Explore free APIs Covered Under APILayer Suite! APIs available for developers. Browse our collection of public APIs in the APIs Covered Under APILayer Suite! category, each verified and documented for easy integration into your projects.
| Name | Description | Auth | HTTPS | CORS | Status |
|---|---|---|---|---|---|
| corpusAI Cloud Pricing | Cloud, GPU and LLM token prices for agents, free discovery tools and paid per-call data | none | No | unknown | unknown |
| Filesystem | Read/write local files | none | No | unknown | unknown |
| GitHub | Repos, issues, PRs, code search | oauth | No | unknown | unknown |
| IPstack MCP | IP geolocation, threat and timezone lookups for agents | apikey | No | unknown | unknown |
| Kuro | Create AI images, video clips, voice-overs, music and editable storyboard films | oauth | No | unknown | unknown |
| OpenSwissData | Swiss customs tariff (TARES), FINMA register and warnings, NOGA/NACE/ISIC code crosswalks | none | No | unknown | unknown |
| RegSentry | Inspect authorized static tracking signals and review supplied consent evidence | none | No | unknown | unknown |
| Twinbay | Spin up stateful API twins, read request logs and grade agent runs | oauth | No | unknown | unknown |
| Vuntum | Sourced, dated data on consumer robots and physical AI: specs, prices, evidence | none | No | unknown | unknown |
5 of these APIs require no authentication — you can start making requests immediately without signing up for an account. Just pick one from the table above, check its documentation, and send your first request.
1 APIs in this category require a free API key. This usually means creating a free account on the provider's website and copying your key from the dashboard. The process typically takes less than a minute.
Not sure where to start? Look for APIs marked as "alive" in the status column — these were recently verified as working. For browser-based projects, check that the API supports CORS.
Yes, all APIs listed on API Bouncer have a free tier. Some are completely open (no sign-up needed), while others require a free account to get an API key. Free tiers typically have rate limits — check each API's documentation for specifics.
It depends on your needs. Consider: Do you need authentication or prefer no-auth? Does your project need CORS support for browser access? How many requests will you make? Start with a no-auth API to prototype quickly, then switch to a more feature-rich option if needed.
We run periodic health checks on all listed APIs. The "Status" column shows whether each API was responding at our last check. APIs marked as "alive" were recently verified. You can also test any API yourself using curl or our guides on testing APIs.
Most free APIs allow commercial use, but terms vary by provider. Always check the specific API's terms of service. Some APIs have separate free and commercial tiers with different rate limits.
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