# TollRelay docs

> How to issue an identity and how a seller verifies it.

- [The three calls](https://tollrelay.com/docs): register, create an identity, set a mandate
- [Verify](https://tollrelay.com/docs/verify): offline against the JWKS, online at /verify
- [Errors](https://tollrelay.com/docs/errors): the envelope and the closed code vocabulary
- [Versioning](https://tollrelay.com/docs/versioning): the version header and the sunset policy
- [SDK](https://tollrelay.com/docs/sdk): the fetch wrapper and its signing
- [CLI](https://tollrelay.com/docs/cli): the terminal commands
- [MCP](https://tollrelay.com/docs/mcp): the tools an agent calls
- [OpenAPI](https://tollrelay.com/openapi.json): the contract
- [Agents file](https://api.trlay.dev/agents.md): the same, for an agent