Coin Metrics API provides access to historical and real-time network and market data.
You need an API key to access most of the data. Please contact us if you want access.
You don't need an API key to access free data. Simply run API queries without API key against community-api.coinmetrics.io endpoint.
Coin Metrics runs multiple versions of the API simultaneously, for the purpose of backwards compatibility with existing client code using the API.
We recommend to start with the latest stable version. If you are already using some previous stable version, you can continue using it. See API Backward Compatibility Policy for details.
These versions are recommended to use in production.
| Version | Reference Documentation |
|---|---|
| v4 Latest stable | API v4 Reference Docs |
| v2 | API v2 Reference Docs |
These versions may include newer features, but provide no guarantees for uptime or interface stability. Do not use in production.
| Version | Reference Documentation |
|---|---|
| v3 Development | API v3 Reference Docs |
These versions are scheduled for removal or no longer supported. Do not use in production.
| Version | Reference Documentation |
|---|---|
| v1 Deprecated | API v1 Reference Docs |