# SignupBear

> Signup risk checks for teams that need a clear allow, review, or block decision.

## Docs

- [Changelog](https://docs.signupbear.com/changelog.md): User-visible SignupBear API and policy changes.
- [Coverage and status](https://docs.signupbear.com/concepts/coverage.md): Know which signals were evaluated before enforcing a decision.
- [Decisions](https://docs.signupbear.com/concepts/decisions.md): Interpret risk levels, recommended actions, reasons, and policy versions.
- [Manage API keys](https://docs.signupbear.com/guides/api-keys.md): Create, store, rotate, and revoke test and live keys.
- [Data retention](https://docs.signupbear.com/guides/data-retention.md): Control how long masked check logs remain available.
- [Protect a signup flow](https://docs.signupbear.com/guides/signup-flow.md): Place SignupBear at the correct point in account creation.
- [Test mode](https://docs.signupbear.com/guides/test-mode.md): Exercise allow and block paths without production traffic.
- [SignupBear docs](https://docs.signupbear.com/index.md): Add an explicit signup risk decision to your server in minutes.
- [Quickstart](https://docs.signupbear.com/quickstart.md): Create a test key and make your first risk check.
- [Authentication](https://docs.signupbear.com/reference/authentication.md): Authenticate API calls with a SignupBear bearer key.
- [Check signup risk](https://docs.signupbear.com/reference/check.md): Evaluate an email and receive an explicit policy decision.
- [Errors](https://docs.signupbear.com/reference/errors.md): Handle validation, authentication, quota, and service errors.
- [Usage limits](https://docs.signupbear.com/reference/limits.md): Understand monthly quotas and response headers.

## OpenAPI Specs

- [openapi](https://docs.signupbear.com/openapi.json)