Lucid Document Embedding API

openapi: 3.2.0
info:
  title: Lucid REST Document Embedding API
  version: '1.0'
  description: The Lucid REST API provides programmatic access to manage documents, users, folders, sharing, licensing, and audit logs across the Lucid Suite (Lucidchart, Lucidspark, and Lucidscale). Authenticate via OAuth 2.0 or API key.
  contact:
    name: Lucid Developer Platform
    url: https://developer.lucid.co/
  x-documentation: https://developer.lucid.co/reference/api
servers:
- url: https://api.lucid.co
tags:
- name: Document Embedding
  description: Generate session tokens and render the embedded viewer iframe used to display Lucid documents in external applications.
paths:
  /v1/embeds:
    get:
      summary: Embed Viewer
      description: Display an embed within an iframe. If no embed id was included when creating the token, the iframe first displays a document picker where the user can create and configure a new embed. If an embed id was included, the iframe displays either an embedded document viewer, an embedded editor, or an embed configuration page depending on the token request body and embed settings.
      operationId: documentEmbeds
      tags:
      - Document Embedding
      security:
      - OAuth2: []
      parameters:
      - name: token
        in: query
        required: true
        schema:
          type: string
        description: The embed session token retrieved from the Generate Embed Session Token endpoint.
      responses:
        '200':
          description: The iframe content displaying the embedded document picker or viewer.
          content:
            text/html:
              schema:
                type: string
        '401':
          description: Unauthorized. The token is missing or invalid.
        '403':
          description: Forbidden. The access to the embed is forbidden.
        '404':
          description: Not Found. The embed id is not found.
  /v1/embeds/token:
    post:
      summary: Generate Embed Session Token
      description: Generates a short-lived, limited-scope temporary access token to allow your app to display embedded Lucid documents in an iframe. The token allows the embedding website to load the document picker and document viewer, but does not grant access to any additional resource within Lucid.
      operationId: documentEmbedsToken
      tags:
      - Document Embedding
      security:
      - OAuth2:
        - lucidchart.document.app.picker.share.embed
        - lucidscale.document.app.picker.share.embed
        - lucidspark.document.app.picker.share.embed
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                embedId:
                  type: string
                  format: uuid
                  description: ID of the document embed. This is needed for viewing an existing embed.
                origin:
                  type: string
                  description: The URL (including protocol) of the webpage that will host the embed. Must use the `https://` scheme (e.g., `https://example.com`, `http://localhost`).
                  example: https://example.com
                sessionConfig:
                  $ref: '#/components/schemas/SessionConfig'
              required:
              - origin
      responses:
        '200':
          description: Valid token that can be used to embed a document picker or a document viewer.
          content:
            application/jwt:
              schema:
                type: string
        '400':
          description: Bad Request. Occurs when `origin` is missing a protocol, uses an unsupported scheme, or is not a valid URL.
        '401':
          description: Access token is missing or invalid.
        '403':
          description: Access to the embed is forbidden.
        '404':
          description: The embed id in the parameter is not found.
components:
  schemas:
    ViewerCustomSettings:
      type: string
      enum:
      - postMessage
      - none
      description: '- postMessage: Display a "Settings for <app>" link in the embed settings view where users can update the settings. When clicked, the OpenCustomSettings postMessage event would be fired so the app can display its own customized settings view.

        - none: "Settings for <app>" link would not be available in the settings editor.

        '
    SessionConfig:
      type: object
      properties:
        products:
          type: array
          items:
            $ref: '#/components/schemas/Product'
          description: A list of Products that a user can choose a document from to be embedded. Defaults to all products.
        viewerType:
          type: object
          properties:
            default:
              $ref: '#/components/schemas/ViewerType'
          description: What type of viewer to load by defaults. If not specified, defaults to rich. Users can change this later.
        ui:
          $ref: '#/components/schemas/UI'
        customSettings:
          $ref: '#/components/schemas/ViewerCustomSettings'
    ViewerType:
      type: string
      enum:
      - rich
      - simple
      description: '- rich: The standard Lucid viewer experience. A fully interactive viewer with zoom, panning, and support for hotspots and other interactive elements.

        - simple: A basic Lucid viewer experience that can be used in place of the rich viewer if there are performance or load time concerns. The simple viewer renders non-interactive raster images instead of a high-fidelity vector experience and is a poorer fit for viewing larger documents.

        '
    UI:
      type: string
      enum:
      - viewer
      - settings
      description: '- viewer: When loading an existing embed, go directly to the standard embedded view of the document.

        - settings: When loading an existing embed, show the user the embed settings interface before taking them to the standard embed view of the document.

        '
    Product:
      type: string
      enum:
      - lucidchart
      - lucidscale
      - lucidspark
      description: The Lucid Suite product that a document was created in.
      example: lucidchart
  securitySchemes:
    OAuth2:
      type: oauth2
      flows:
        authorizationCode:
          authorizationUrl: https://lucid.app/oauth2/authorize
          tokenUrl: https://api.lucid.co/oauth2/token
          refreshUrl: https://api.lucid.co/oauth2/token
          scopes:
            account.audit.logs: View audit logs on your account.
            account.info: View basic information about your account (e.g., account ID and account name) .
            account.user: Create, view, edit, and delete users on your account.
            account.user:readonly: View users on your account.
            account.users:admin.readonly: View all users and their roles on your account.
            account.user.transfercontent: Transfer ownership of a user's resources to another user on your account.
            account.settings:readonly: View settings on your account.
            account.legalhold: Create, view, and expire legal holds on your account.
            account.legalhold:readonly: View legal holds on your account.
            account.legalhold.users: Manage legal hold users on your account.
            account.legalhold.users:readonly: View legal hold users on your account.
            folder: Create, view, edit, share, and delete your folders. Organize your folders and their contents.
            folder:readonly: View any of your folders and list their contents.
            folder:admin: Perform admin actions on folders belonging to the account.
            folder:admin.readonly: View all folders belonging to the account with admin permissions.
            invitation: Accept document and folder share links.
            invitation.accept: Accept document and folder share links.
            cloud.credential: Manage cloud credentials.
            cloud.credential:readonly: View cloud credentials.
            cloud.datasource: Manage cloud data sources.
            cloud.datasource:readonly: View cloud data sources.
            cloud.model: Manage cloud models.
            repository: Manage repositories.
            repository:readonly: View repositories.
            repository:admin: Perform admin actions on repositories.
            lucid.document.content: Create, view, edit, and delete any Lucid document accessible by the user.
            lucid.document.content:readonly: View and download any Lucid document accessible by the user.
            lucid.document.content:admin: Perform admin actions on Lucid documents belonging to the account.
            lucid.document.content:admin.readonly: View all Lucid documents belonging to the account with admin permissions.
            lucid.document.content.share: Create, view, edit, and delete document collaborators, embeds, and share links for any Lucid document accessible by the user.
            lucid.document.content.share:readonly: View document collaborators, embeds, and share links for any Lucid document accessible by the user.
            lucid.document.content.share.collaborator: Create, view, edit, and delete document collaborators for any Lucid document accessible by the user.
            lucid.document.content.share.collaborator:readonly: View document collaborators for any Lucid document accessible by the user.
            lucid.document.content.share.embed: Create, view, edit, and delete document embeds for any Lucid document accessible by the user.
            lucid.document.content.share.embed:readonly: View document embeds for any Lucid document accessible by the user.
            lucid.document.content.share.link: Create, view, edit, and delete share links for any Lucid document accessible by the user.
            lucid.document.content.share.link:readonly: View share links for any Lucid document accessible by the user.
            lucid.document.storage:admin.readonly: Perform admin actions backing up Lucid documents belonging to the account.
            lucid.document.app: View, edit, create, and manage folders and documents within an app.
            lucid.document.app.folder: Create, view, edit, and manage any Lucid document within its app-specific folder.
            lucid.document.app.picker: View, edit, and manage any Lucid document selected within an app.
            lucid.document.app.picker:readonly: View and download any Lucid document selected within an app.
            lucid.document.app.picker.share: Create, view, edit, and delete document collaborators, embeds, and share links for any Lucid document selected within an app.
            lucid.document.app.picker.share:readonly: View document collaborators, embeds, and share links for any Lucid document selected within an app.
            lucid.document.app.picker.share.collaborator: Create, view, edit, and delete document collaborators for any Lucid document selected within an app.
            lucid.document.app.picker.share.collaborator:readonly: View document collaborators for any Lucid document selected within an app.
            lucid.document.app.picker.share.embed: Create, view, edit, and delete document embeds for any Lucid document selected within an app.
            lucid.document.app.picker.share.embed:readonly: View document embeds for any Lucid document selected within an app.
            lucid.document.app.picker.share.link: Create, view, edit, and delete share links for any Lucid document selected within an app.
            lucid.document.app.picker.share.link:readonly: View share links for any Lucid document selected within an app.
            lucid.document.accessRequest: Request access to Lucid documents.
            licenses:admin: Perform admin actions on licenses and subscriptions belonging to the account.
            licenses:admin.readonly: View licenses and subscriptions belonging to the account with admin permissions.
            teams: Create, view, and edit, archive, and restore any teams on your account. Control which users belong to teams.
            teams:readonly: View any teams on your account and list which users belong to them.
            teams:admin: Manage teams on your account.
            lucidchart.document.app: View, edit, and manage any Lucidchart document selected for this third-party application. Create, view, edit, and manage any Lucidchart document within its app-specific folder.
            lucidchart.document.app.folder: Create, view, edit, and manage any Lucidchart document within its app-specific folder.
            lucidchart.document.app.picker: View, edit, and manage any Lucidchart document selected for this third-party application.
            lucidchart.document.app.picker:readonly: View and download any Lucidchart document selected for this third-party application.
            lucidchart.document.app.picker.share: Create, view, edit, and delete document collaborators, embeds, and share links for any Lucidchart document selected for this third-party application.
            lucidchart.document.app.picker.share:readonly: View document collaborators, embeds, and share links for any Lucidchart document selected for this third-party application.
            lucidchart.document.app.picker.share.collaborator: Create, view, edit, and delete collaborators and invitations of any Lucidchart document on your team or enterprise account selected for the third-party application.
            lucidchart.document.app.picker.share.collaborator:readonly: View collaborators and invitations of any Lucidchart document on your team or enterprise account selected for the third-party application.
            lucidchart.document.app.picker.share.embed: Create, view, edit, and delete embeds of any Lucidchart document on your team or enterprise account selected for the third-party application.
            lucidchart.document.app.picker.share.embed:readonly: View embeds of any Lucidchart document on your team or enterprise account selected for the third-party application.
            lucidchart.document.app.picker.share.link: Create, view, edit, and delete the third party application's share links of any Lucidchart document on your team or enterprise account selected for the third-party application.
            lucidchart.document.app.picker.share.link:readonly: View the third party application's share links of any Lucidchart document on your team or enterprise account selected for the third-party application.
            lucidchart.document.content: Create, view, edit, and delete any Lucidchart document on your account.
            lucidchart.document.content:readonly: View and download any Lucidchart document on your account.
            lucidchart.document.content:admin: Perform admin actions on Lucidchart documents belonging to the account.
            lucidchart.document.content:admin.readonly: View all Lucidchart documents belonging to the account with admin permissions.
            lucidchart.document.content.share: Create, view, edit, and delete document collaborators, embeds, and share links for any of your Lucidchart documents.
            lucidchart.document.content.share:readonly: View document collaborators, embeds, and share links for any of your Lucidchart documents.
            lucidchart.document.content.share.collaborator: Create, view, edit, and delete collaborators and invitations for any of your Lucidchart documents on your team or enterprise account.
            lucidchart.document.content.share.collaborator:readonly: View collaborators and invitations for any of your Lucidchart documents on your team or enterprise account.
            lucidchart.document.content.share.embed: Create, view, edit, and delete embeds for any of your Lucidchart documents on your team or enterprise account.
            lucidchart.document.content.share.embed:readonly: View embeds for any of your Lucidchart documents on your team or enterprise account.
            lucidchart.document.content.share.link: Create, view, edit, and delete the third party application's share links for any of your Lucidchart documents on your team or enterprise account.
            lucidchart.document.content.share.link:readonly: View the third party application's share links for any of your Lucidchart documents on your team or enterprise account.
            lucidchart.document.storage:admin.readonly: Perform admin actions backing up Lucidchart documents belonging to the account.
            lucidchart.document.accessRequest: Request access to Lucidchart documents.
            lucidspark.document.app: View, edit, and manage any Lucidspark board selected for this third-party application. Create, view, edit, and manage any Lucidspark board within its app-specific folder.
            lucidspark.document.app.folder: Create, view, edit, and manage any Lucidspark board within its app-specific folder.
            lucidspark.document.app.picker: View, edit, and manage any Lucidspark board selected for this third-party application.
            lucidspark.document.app.picker:readonly: View and download any Lucidspark board selected for this third-party application.
            lucidspark.document.app.picker.share: Create, view, edit, and delete document collaborators, embeds, and share links for any Lucidspark board selected for this third-party application.
            lucidspark.document.app.picker.share:readonly: View document collaborators, embeds, and share links for any Lucidspark board selected for this third-party application.
            lucidspark.document.app.picker.share.collaborator: Create, view, edit, and delete collaborators and invitations of any Lucidspark board on your team or enterprise account selected for the third-party application.
            lucidspark.document.app.picker.share.collaborator:readonly: View collaborators and invitations of any Lucidspark board on your team or enterprise account selected for the third-party application.
            lucidspark.document.app.picker.share.embed: Create, view, edit, and delete embeds of any Lucidspark board on your team or enterprise account selected for the third-party application.
            lucidspark.document.app.picker.share.embed:readonly: View embeds of any Lucidspark board on your team or enterprise account selected for the third-party application.
            lucidspark.document.app.picker.share.link: Create, view, edit, and delete the third party application's share links of any Lucidspark board on your team or enterprise account selected for the third-party application.
            lucidspark.document.app.picker.share.link:readonly: View the third party application's share links of any Lucidspark board on your team or enterprise account selected for the third-party application.
            lucidspark.document.content: Create, view, edit, and delete any Lucidspark board on your account.
            lucidspark.document.content:readonly: View and download any Lucidspark board on your account.
            lucidspark.document.content:admin: Perform admin actions on Lucidspark boards belonging to the account.
            lucidspark.document.content:admin.readonly: View all Lucidspark boards belonging to the account with admin permissions.
            lucidspark.document.content.share: Create, view, edit, and delete document collaborators, embeds, and share links for any of your Lucidspark boards.
            lucidspark.document.content.share:readonly: View document collaborators, embeds, and share links for any of your Lucidspark boards.
            lucidspark.document.content.share.collaborator: Create, view, edit, and delete collaborators and invitations for any of your Lucidspark boards on your team or enterprise account.
            lucidspark.document.content.share.collaborator:readonly: View collaborators and invitations for any of your Lucidspark boards on your team or enterprise account.
            lucidspark.document.content.share.embed: Create, view, edit, and delete embeds for any of your Lucidspark boards on your team or enterprise account.
            lucidspark.document.content.share.embed:readonly: View embeds for any of your Lucidspark boards on your team or enterprise account.
            lucidspark.document.content.share.link: Create, view, edit, and delete the third party application's share links for any of your Lucidspark boards on your team or enterprise account.
            lucidspark.document.content.share.link:readonly: View the third party application's share links for any of your Lucidspark boards on your team or enterprise account.
            lucidspark.document.storage:admin.readonly: Perform admin actions backing up Lucidspark boards belonging to the account.
            lucidspark.document.accessRequest: Request access to Lucidspark boards.
            lucidscale.document.app: View, edit, and manage any Lucidscale model selected for this third-party application. Create, view, edit, and manage any Lucidscale model within its app-specific folder.
            lucidscale.document.app.folder: Create, view, edit, and manage any Lucidscale model within its app-specific folder.
            lucidscale.document.app.picker: View, edit, and manage any Lucidscale model selected for this third-party application.
            lucidscale.document.app.picker:readonly: View and download any Lucidscale model selected for this third-party application.
            lucidscale.document.app.picker.share: Create, view, edit, and delete document collaborators, embeds, and share links for any Lucidscale model selected for this third-party application.
            lucidscale.document.app.picker.share:readonly: View document collaborators, embeds, and share links for any Lucidscale model selected for this third-party application.
            lucidscale.document.app.picker.share.collaborator: Create, view, edit, and delete collaborators and invitations of any Lucidscale model on your team or enterprise account selected for the third-party application.
            lucidscale.document.app.picker.share.collaborator:readonly: View collaborators and invitations of any Lucidscale model on your team or enterprise account selected for the third-party application.
            lucidscale.document.app.picker.share.embed: Create, view, edit, and delete embeds of any Lucidscale model on your team or enterprise account selected for the third-party application.
            lucidscale.document.app.picker.share.embed:readonly: View embeds of any Lucidscale model on your team or enterprise account selected for the third-party application.
            lucidscale.document.app.picker.share.link: Create, view, edit, and delete the third party application's share links of any Lucidscale model on your team or enterprise account selected for the third-party application.
            lucidscale.document.app.picker.share.link:readonly: View the third party application's share links of any Lucidscale model on your team or enterprise account selected for the third-party application.
            lucidscale.document.content: Create, view, edit, and delete any Lucidscale model on your account.
            lucidscale.document.content:readonly: View and download any Lucidscale model on your account.
            lucidscale.document.content:admin: Perform admin actions on Lucidscale models belonging to the account.
            lucidscale.document.content:admin.readonly: View all Lucidscale models belonging to the account with admin permissions.
            lucidscale.document.content.share: Create, view, edit, and delete document collaborators, embeds, and share links for any of your Lucidscale models.
            lucidscale.document.content.share:readonly: View document collaborators, embeds, and share links for any of your Lucidscale models.
            lucidscale.document.content.share.collaborator: Create, view, edit, and delete collaborators and invitations for any of your Lucidscale models on your team or enterprise account.
            lucidscale.document.content.share.collaborator:readonly: View collaborators and invitations for any of your Lucidscale models on your team or enterprise account.
            lucidscale.document.content.share.embed: Create, view, edit, and delete embeds for any of your Lucidscale models on your team or enterprise account.
            lucidscale.document.content.share.embed:readonly: View embeds for any of your Lucidscale models on your team or enterprise account.
            lucidscale.document.content.share.link: Create, view, edit, and delete the third party application's share links for any of your Lucidscale models on your team or enterprise account.
            lucidscale.document.content.share.link:readonly: View the third party application's share links for any of your Lucidscale models on your team or enterprise account.
            lucidscale.document.storage:admin.readonly: Perform admin actions backing up Lucidscale models belonging to the account.
            lucidscale.document.accessRequest: Request access to Lucidscale models.
            offline_access: Continue to perform authorized actions when you're not logged in (required to refresh tokens).
            user.profile: Allow applications to view basic information about you (e.g., full name, username, and email).
            document.app: View, edit, and manage any Lucidchart document selected for this third-party application. Create, view, edit, and manage any Lucidchart document within its app-specific folder.
            document.app.folder: Create, view, edit, and manage any Lucidchart document within its app-specific folder.
            document.app.picker: View, edit, and manage any Lucidchart document selected for this third-party application.
            document.app.picker:readonly: View and download any Lucidchart document selected for this third-party application.
            document.content: Create, view, edit, and delete any Lucidchart document on your account.
            document.content:readonly: View and download any Lucidchart document on your account.
    ApiKey:
      type: http
      scheme: bearer
x-harvest:
  harvested: '2026-08-01'
  method: searched
  source: https://lucid-developer-docs.readme.io/mcp
  note: 'Assembled operation-by-operation from Lucid''s own documentation MCP server (tools list-endpoints + get-endpoint), which returns verbatim OpenAPI 3.0.3 fragments out of the spec Lucid uploaded to its ReadMe hub (/branches/1.4/apis/lucid-rest-api.json). Paths, operations, parameters, request bodies, responses, components and securitySchemes are provider content, unmodified. Only the info block is ours: ReadMe''s per-endpoint fragments omit info, so title/description are copied verbatim from the provider''s own list-specs description for this spec.'