# OpenMetadata Metadata API

**Canonical:** https://apis.io/apis/openmetadata/openmetadata-metadata-api/  
**Provider:** OpenMetadata — https://apis.io/providers/openmetadata/  
**Base URL:** https://{your-host}/api/v1  
**Documentation:** https://docs.open-metadata.org/latest/main-concepts/metadata-standard/apis

OpenMetadata Metadata API is one of 89 APIs that [OpenMetadata](https://apis.io/providers/openmetadata/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include Metadata. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and authentication docs.

These APIs are for managing custom property definitions in OpenMetadata. Use these APIs to create custom properties with predefined data types (String, Integer, Date, etc.) that extend entity metadata. Note: This does not support creating new custom data types - only custom properties using existing OpenMetadata data types.

## Machine-readable artifacts (3)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/openmetadata/refs/heads/main/openapi/openmetadata-metadata-api-openapi.yml
- **Documentation** — https://docs.open-metadata.org/latest/main-concepts/metadata-standard/apis
- **Authentication** — https://docs.open-metadata.org/latest/main-concepts/metadata-standard/apis

## Other OpenMetadata APIs (12)

- [OpenMetadata Agent Executions API](https://apis.io/apis/openmetadata/openmetadata-agent-executions-api/)
- [OpenMetadata AI Applications API](https://apis.io/apis/openmetadata/openmetadata-ai-applications-api/)
- [OpenMetadata AI Governance Policies API](https://apis.io/apis/openmetadata/openmetadata-ai-governance-policies-api/)
- [OpenMetadata API Collections API](https://apis.io/apis/openmetadata/openmetadata-api-collections-api/)
- [OpenMetadata API Endpoint API](https://apis.io/apis/openmetadata/openmetadata-api-endpoint-api/)
- [OpenMetadata API Services API](https://apis.io/apis/openmetadata/openmetadata-api-services-api/)
- [OpenMetadata Apps API](https://apis.io/apis/openmetadata/openmetadata-apps-api/)
- [OpenMetadata Audit Logs API](https://apis.io/apis/openmetadata/openmetadata-audit-logs-api/)
- [OpenMetadata Bots API](https://apis.io/apis/openmetadata/openmetadata-bots-api/)
- [OpenMetadata ChangeSummary API](https://apis.io/apis/openmetadata/openmetadata-changesummary-api/)
- [OpenMetadata Charts API](https://apis.io/apis/openmetadata/openmetadata-charts-api/)
- [OpenMetadata Classifications API](https://apis.io/apis/openmetadata/openmetadata-classifications-api/)

## Tags

Metadata

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