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The UseAgents API lets you search the tool registry and build integrations around UseAgents data. Start here to understand the base URL, authentication model, response behavior, and supporting reference pages.

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Base URL

The UseAgents API is HTTPS-only and follows standard REST patterns. All requests use the following base URL: 
https://api.useagents.site

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Authentication

Protected endpoints require an Authorization header with your API key as a Bearer token. 
Authorization: Bearer YOUR_API_KEY
Learn more about Authentication and API Keys.

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Response codes

UseAgents uses standard HTTP status codes. In general:
  • 2xx means the request succeeded
  • 4xx means the request was invalid, unauthorized, or rate limited
  • 5xx means the request failed due to a server-side issue
StatusDescription
200Successful request.
400Bad request. Check that the parameters were correct.
401The API key was missing.
403The API key was invalid.
404The resource was not found.
422Validation error with one or more fields.
429The rate limit was exceeded.
5xxIndicates an error with UseAgents servers.
Check Errors for a full breakdown of common failure cases.

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Rate limits

Authenticated endpoints are rate limited to protect service stability and ensure fair usage. If you exceed the allowed rate, the API returns 429 Too Many Requests. Learn more on the Rate Limits page.

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Versioning

UseAgents aims to keep existing integrations stable as the API evolves. Learn more on the Versioning page.

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Next steps