# M0 Protocol API

**Canonical:** https://apis.io/apis/m-0/m0-protocol-api/  
**Provider:** M 0 — https://apis.io/providers/m-0/  
**Base URL:** https://protocol-api.m0.org/graphql  
**Documentation:** https://docs.m0.org/api-reference/protocol/changelog

M0 Protocol API is one of 5 APIs that [M 0](https://apis.io/providers/m-0/) publishes on the [APIs.io](https://apis.io/) network. The published artifact set on APIs.io includes a changelog.

GraphQL API for querying on-chain protocol data: network supply and token overview, holder balances, daily yields and earner-rate history, collateral composition, and protocol configuration. Authenticated with an Authorization header API key.

## Machine-readable artifacts (3)

- **GraphQL** — https://protocol-api.m0.org/graphql
- **ChangeLog** — https://docs.m0.org/api-reference/protocol/changelog
- **APIsJSON** — https://raw.githubusercontent.com/api-evangelist/m-0/refs/heads/main/apis.yml

## Other M 0 APIs (4)

- [M 0 Order API](https://apis.io/apis/m-0/m-0-order-api/)
- [M 0 Permit API](https://apis.io/apis/m-0/m-0-permit-api/)
- [M 0 Quote API](https://apis.io/apis/m-0/m-0-quote-api/)
- [M 0 Topology API](https://apis.io/apis/m-0/m-0-topology-api/)

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/m-0/m0-protocol-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/m-0/.