# Mirrors documentation

Mirrors builds a runnable digital twin of the backends an AI agent talks to, from the agent's own traces, and serves it over a tool plane, a hosted MCP server, a CLI and a web app.

## Pages

- [Mirrors documentation](https://www.runmirrors.com/docs/README): What a mirror is and where to start.
- [Quickstart](https://www.runmirrors.com/docs/quickstart): From traces to a twin your agent can call, in four steps.
- [How it works](https://www.runmirrors.com/docs/how-it-works): Mirrors, builds, twins, sessions, fidelity, drift and the levers that fix it.
- [Trace exports](https://www.runmirrors.com/docs/traces): What a good export contains and the checks to run before uploading.
- [Collectors](https://www.runmirrors.com/docs/collectors): Stream traces from a running agent in TypeScript, Python or Go.
- [The MCP server](https://www.runmirrors.com/docs/mcp): Drive the whole product from an IDE agent over the hosted endpoint.
- [The CLI](https://www.runmirrors.com/docs/cli): The mirrors command: login, setup, build, call, and every verb.
- [API keys](https://www.runmirrors.com/docs/api-keys): Minting, revoking, and which key goes where.
- [Plans and usage](https://www.runmirrors.com/docs/plans-and-usage): What is metered, the plans, the card, offers and invoicing.
- [For agents](https://www.runmirrors.com/docs/for-agents): Markdown twins: what an IDE agent reads to use Mirrors without a person.
- [API reference: introduction](https://www.runmirrors.com/docs/reference/introduction): Base URL, authentication, the error envelope, rate limits, the registry.
- [API reference: collect](https://www.runmirrors.com/docs/reference/collect): The endpoint collectors post to.
- [API reference: the tool plane](https://www.runmirrors.com/docs/reference/envs): Wake a twin, open a session, call tools, read the transcript.
- [API reference: tools and calls](https://www.runmirrors.com/docs/reference/tools): Tool dialects, the call request and result, seeding.
- [API reference: build](https://www.runmirrors.com/docs/reference/build): The multipart build route, rebuild, and job polling.
- [Getting started (for agents)](https://www.runmirrors.com/docs/reference/getting-started): Concepts and the end-to-end flow in the verbs' own names.
- [Accepted trace formats](https://www.runmirrors.com/docs/reference/formats): Every format the transpiler library reads, and the canonical shape.
- [File inputs](https://www.runmirrors.com/docs/reference/inputs): How a file is passed (inline, URL or upload id) and what each kind does.
- [Config and overrides](https://www.runmirrors.com/docs/reference/overrides): Knobs, per-tool levers, world overrides and scenarios.
- [Service verbs](https://www.runmirrors.com/docs/reference/verbs): Every verb with its schemas, MCP tool name and CLI words.