# CMS Open Payments Metastore API

**Canonical:** https://apis.io/apis/open-payments/open-payments-metastore-api/  
**Provider:** CMS Open Payments — https://apis.io/providers/open-payments/  
**Base URL:** https://openpaymentsdata.cms.gov/api/1  
**Documentation:** https://openpaymentsdata.cms.gov/about/api

CMS Open Payments Metastore API is one of 5 APIs that [CMS Open Payments](https://apis.io/providers/open-payments/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include Metastore. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and an API reference.

DCAT-US dataset catalog and metadata.

## Machine-readable artifacts (5)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/open-payments/refs/heads/main/openapi/open-payments-metastore-api-openapi.yml
- **Documentation** — https://openpaymentsdata.cms.gov/about/api
- **APIReference** — https://openpaymentsdata.cms.gov/datasets
- **OpenCollection** — https://raw.githubusercontent.com/api-evangelist/open-payments/refs/heads/main/collections/open-payments.opencollection.json
- **PostmanCollection** — https://raw.githubusercontent.com/api-evangelist/open-payments/refs/heads/main/collections/open-payments.postman_collection.json

## Other CMS Open Payments APIs (4)

- [CMS Open Payments Datastore Query API](https://apis.io/apis/open-payments/open-payments-datastore-query-api/)
- [CMS Open Payments Datastore SQL API](https://apis.io/apis/open-payments/open-payments-datastore-sql-api/)
- [CMS Open Payments Download API](https://apis.io/apis/open-payments/open-payments-download-api/)
- [CMS Open Payments Search API](https://apis.io/apis/open-payments/open-payments-search-api/)

## Tags

Metastore

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