# Lucid Schema API

**Canonical:** https://apis.io/apis/lucid/lucid-schema-api/  
**Provider:** Lucid — https://apis.io/providers/lucid/  
**Base URL:** https://api.lucid.co  
**Documentation:** https://developer.lucid.co/reference/api

Lucid Schema API is one of 37 APIs that [Lucid](https://apis.io/providers/lucid/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include Schema. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and an API reference.

Define and retrieve the schema for a collection, specifying the fields, types, and constraints for its data items.

## Operations (6)

| Method | Path | Summary |
|---|---|---|
| GET | `/collections/{collectionId}/schema/{fieldDefinitionId}` | Get Field Definition |
| PATCH | `/collections/{collectionId}/schema/{fieldDefinitionId}` | Update Field Definition |
| DELETE | `/collections/{collectionId}/schema/{fieldDefinitionId}` | Delete Field Definition |
| GET | `/collections/{collectionId}/schema` | Get All Field Definitions |
| PATCH | `/collections/{collectionId}/schema` | Update Field Definitions |
| DELETE | `/collections/{collectionId}/schema` | Delete Field Definitions |

## Machine-readable artifacts (4)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/lucid/refs/heads/main/openapi/lucid-schema-api-openapi.yml
- **Documentation** — https://developer.lucid.co/docs/welcome
- **APIReference** — https://developer.lucid.co/reference/api
- **APIReference** — https://developer.lucid.co/reference/overview-scim

## Other Lucid APIs (12)

- [Lucid MCP Server](https://apis.io/apis/lucid/lucid-mcp-server/)
- [Lucid Accounts API](https://apis.io/apis/lucid/lucid-accounts-api/)
- [Lucid Audit Logs API](https://apis.io/apis/lucid/lucid-audit-logs-api/)
- [Lucid Cloud API](https://apis.io/apis/lucid/lucid-cloud-api/)
- [Lucid Collection API](https://apis.io/apis/lucid/lucid-collection-api/)
- [Lucid Collection Properties API](https://apis.io/apis/lucid/lucid-collection-properties-api/)
- [Lucid Create Diagram API](https://apis.io/apis/lucid/lucid-creatediagram-api/)
- [Lucid Data Item API](https://apis.io/apis/lucid/lucid-data-item-api/)
- [Lucid Data Set API](https://apis.io/apis/lucid/lucid-data-set-api/)
- [Lucid Data Set Grant API](https://apis.io/apis/lucid/lucid-data-set-grant-api/)
- [Lucid Data Set Properties API](https://apis.io/apis/lucid/lucid-data-set-properties-api/)
- [Lucid Data Source API](https://apis.io/apis/lucid/lucid-data-source-api/)

## Tags

Schema

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