# Matrix Server-Server (Federation) API

**Canonical:** https://apis.io/apis/matrix/server-server-api/  
**Provider:** Matrix — https://apis.io/providers/matrix/  
**Base URL:** https://matrix.org/_matrix/federation  
**Documentation:** https://spec.matrix.org/latest/server-server-api/

Matrix Server-Server (Federation) API is one of 20 APIs that [Matrix](https://apis.io/providers/matrix/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Federation, Server-Server, and Decentralized. The published artifact set on APIs.io includes API documentation.

Federation API that lets Matrix homeservers exchange events, presence, and key information with one another over signed JSON requests.

## Machine-readable artifacts (2)

- **Documentation** — https://spec.matrix.org/latest/server-server-api/
- **OpenAPI Source** — https://github.com/matrix-org/matrix-spec/tree/main/data/api/server-server

## Other Matrix APIs (12)

- [Matrix Client-Server API](https://apis.io/apis/matrix/client-server-api/)
- [Matrix Application Service API](https://apis.io/apis/matrix/application-service-api/)
- [Matrix Identity Service API](https://apis.io/apis/matrix/identity-service-api/)
- [Matrix Push Gateway API](https://apis.io/apis/matrix/push-gateway-api/)
- [Matrix Account API](https://apis.io/apis/matrix/matrix-account-api/)
- [Matrix Capabilities API](https://apis.io/apis/matrix/matrix-capabilities-api/)
- [Matrix CreateRoom API](https://apis.io/apis/matrix/matrix-createroom-api/)
- [Matrix Devices API](https://apis.io/apis/matrix/matrix-devices-api/)
- [Matrix Directory API](https://apis.io/apis/matrix/matrix-directory-api/)
- [Matrix Join API](https://apis.io/apis/matrix/matrix-join-api/)
- [Matrix Keys API](https://apis.io/apis/matrix/matrix-keys-api/)
- [Matrix Login API](https://apis.io/apis/matrix/matrix-login-api/)

## Tags

Federation, Server-Server, Decentralized

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/matrix/server-server-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/matrix/.