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OpenAPI Specification

openapi: 3.2.0
info:
  title: Lucid Data Data Source API
  version: '1.0'
  description: The Lucid Data API enables external applications to create, read, update, and delete structured data linked to Lucid documents. Use it to sync data sets, collections, and schemas between your data sources and Lucid diagrams. Authenticate via OAuth 2.0.
  contact:
    name: Lucid Developer Platform
    url: https://developer.lucid.co/
  x-documentation: https://developer.lucid.co/reference/data-api
servers:
- url: https://data.lucid.app
tags:
- name: Data Source
  description: Create, retrieve, update, and delete data sources within a data set. A data source represents an external system whose data is synced into Lucid.
paths:
  /dataSources:
    head:
      summary: Get Total Data Sources Count
      description: 'This endpoint returns the number of data sources a user has access to. The return value is in the response headers as `Lucid-DataSources-Total`

        '
      operationId: getDataSourceCount
      tags:
      - Data Source
      security:
      - OAuth2:
        - data-service.admin
      responses:
        '200':
          description: OK with lucid-datasources-total header in response
          headers:
            lucid-datasources-total:
              description: Total number of data sources
              schema:
                type: integer
                example: 123
    get:
      summary: Get All Data Sources
      description: 'This endpoint returns all data sources that the user has access to. The results will be paginated. If the number of data sources exceeds the pagination limit, links will be provided to get the next set of results or the previous set of results (if applicable). The range of returned values can be determined by optional start and end parameters. If the difference between the end and start values is greater than the pagination limit, the endpoint returns data sources in the range from start to start + pagination limit. Items in the response are determined based on their creation order.

        '
      operationId: getAllDataSources
      tags:
      - Data Source
      security:
      - OAuth2:
        - data-service.admin
      parameters:
      - name: start
        in: query
        description: Starting 1-based index of data sources to retreive. Defaults to 1.
        required: false
        schema:
          type: integer
      - name: end
        in: query
        description: Ending index of data sources to retreive. Defaults to 100.
        required: false
        schema:
          type: integer
      responses:
        '200':
          description: OK with paginated list of Data Source objects
          content:
            application/json:
              schema:
                type: object
                properties:
                  dataSources:
                    type: array
                    items:
                      type: object
                      properties:
                        uri:
                          type: string
                          description: URI of the data source
                          example: https://data.lucid.app/dataSources/2967
                        name:
                          type: string
                          description: Name of the data source
                          example: Internal Org Chart
                        sourceGrants:
                          type: string
                          description: Link to get grants for the data source
                          example: https://data.lucid.app/sourceGrants?dataSource=https://data.lucid.app/dataSources/2967
                        adapterType:
                          type: string
                          description: Type of adapter used to create the data source. Valid values are `CSV`, `DATA_API`, and `UNKNOWN`
                          example: CSV
                        collections:
                          type: string
                          description: Link to get collections for the data source
                          example: https://data.lucid.app/collections?dataSource=https://data.lucid.app/dataSources/2967
                        created:
                          type: string
                          description: Date the data source was created
                          example: '2021-01-01T00:00:00Z'
                        lastModified:
                          type: string
                          description: Date the data source was last modified
                          example: '2021-01-01T00:00:00Z'
                        pending:
                          type: boolean
                          description: If a data source is marked pending it won't be availble for users to select within Lucid
                          example: false
                        dataSet:
                          type: string
                          description: Link to get the data set for the data source
                          example: https://data.lucid.app/dataSets/2168
                        linkParameters:
                          type: object
                          description: Link parameters for the data source
                          example:
                            param1: value1
                            param2: value2
                        deleted:
                          type: string
                          description: Date the data source was deleted
                          example: '2021-01-01T00:00:00Z'
                      required:
                      - uri
                      - name
                      - sourceGrants
                      - adapterType
                      - collections
                      - created
                      - lastModified
                      - pending
                      - dataSet
                      example:
                        uri: https://data.lucid.app/dataSources/2967
                        name: Internal Org Chart
                        sourceGrants: https://data.lucid.app/sourceGrants?dataSource=https://data.lucid.app/dataSources/2967
                        adapterType: CSV
                        collections: https://data.lucid.app/collections?dataSource=https://data.lucid.app/dataSources/2967
                        created: '2021-01-01T00:00:00Z'
                        lastModified: '2021-01-01T00:00:00Z'
                        pending: false
                        dataSet: https://data.lucid.app/dataSets/2168
                        linkParameters:
                          param1: value1
                          param2: value2
                        deleted: '2021-01-01T00:00:00Z'
                  total:
                    type: integer
                    description: Total number of data sources
                    example: 125
                  prev:
                    type: string
                    description: Link to get the previous set of data sources
                    example: https://data.lucid.app/dataSources?start=80&end=90
                  next:
                    type: string
                    description: Link to get the next set of data sources
                    example: https://data.lucid.app/dataSources?start=100&end=110
    post:
      summary: Create Data Source
      description: 'Creates a new data source and a corresponding new data source grant for the user.

        '
      operationId: createDataSource
      tags:
      - Data Source
      security:
      - OAuth2:
        - data-service.admin
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                name:
                  type: string
                  description: Name to give the new data source
                  example: New Data Source
                adapterType:
                  type: string
                  description: Type of adapter used to create the data source. Valid values are `CSV`, `DATA_API`, and `UNKNOWN`. (Defaults to `UNKNOWN`)
                  example: CSV
              required:
              - name
              example:
                name: Internal Org Chart
                adapterType: CSV
      responses:
        '200':
          description: OK with Data Source
          content:
            application/json:
              schema:
                type: object
                properties:
                  uri:
                    type: string
                    description: URI of the data source
                    example: https://data.lucid.app/dataSources/2967
                  name:
                    type: string
                    description: Name of the data source
                    example: Internal Org Chart
                  sourceGrants:
                    type: string
                    description: Link to get grants for the data source
                    example: https://data.lucid.app/sourceGrants?dataSource=https://data.lucid.app/dataSources/2967
                  adapterType:
                    type: string
                    description: Type of adapter used to create the data source. Valid values are `CSV`, `DATA_API`, and `UNKNOWN`
                    example: CSV
                  collections:
                    type: string
                    description: Link to get collections for the data source
                    example: https://data.lucid.app/collections?dataSource=https://data.lucid.app/dataSources/2967
                  created:
                    type: string
                    description: Date the data source was created
                    example: '2021-01-01T00:00:00Z'
                  lastModified:
                    type: string
                    description: Date the data source was last modified
                    example: '2021-01-01T00:00:00Z'
                  pending:
                    type: boolean
                    description: If a data source is marked pending it won't be availble for users to select within Lucid
                    example: false
                  dataSet:
                    type: string
                    description: Link to get the data set for the data source
                    example: https://data.lucid.app/dataSets/2168
                  linkParameters:
                    type: object
                    description: Link parameters for the data source
                    example:
                      param1: value1
                      param2: value2
                  deleted:
                    type: string
                    description: Date the data source was deleted
                    example: '2021-01-01T00:00:00Z'
                required:
                - uri
                - name
                - sourceGrants
                - adapterType
                - collections
                - created
                - lastModified
                - pending
                - dataSet
                example:
                  uri: https://data.lucid.app/dataSources/2967
                  name: New Data Source
                  sourceGrants: https://data.lucid.app/sourceGrants?dataSource=https://data.lucid.app/dataSources/2967
                  adapterType: CSV
                  collections: https://data.lucid.app/collections?dataSource=https://data.lucid.app/dataSources/2967
                  created: '2021-01-01T00:00:00Z'
                  lastModified: '2021-01-01T00:00:00Z'
                  pending: false
                  dataSet: https://data.lucid.app/dataSets/2168
  /dataSources/{dataSourceId}:
    get:
      summary: Get Data Source
      description: 'Gets a specific existing data source from Lucid. If the creator of the data source is the user making the request, the link parameters will be returned with the data source.

        '
      operationId: getDataSource
      tags:
      - Data Source
      security:
      - OAuth2:
        - data-service.admin
      parameters:
      - name: dataSourceId
        in: path
        description: ID of data source to return
        required: true
        schema:
          type: integer
      responses:
        '200':
          description: OK with Data Source
          content:
            application/json:
              schema:
                type: object
                properties:
                  uri:
                    type: string
                    description: URI of the data source
                    example: https://data.lucid.app/dataSources/2967
                  name:
                    type: string
                    description: Name of the data source
                    example: Internal Org Chart
                  sourceGrants:
                    type: string
                    description: Link to get grants for the data source
                    example: https://data.lucid.app/sourceGrants?dataSource=https://data.lucid.app/dataSources/2967
                  adapterType:
                    type: string
                    description: Type of adapter used to create the data source. Valid values are `CSV`, `DATA_API`, and `UNKNOWN`
                    example: CSV
                  collections:
                    type: string
                    description: Link to get collections for the data source
                    example: https://data.lucid.app/collections?dataSource=https://data.lucid.app/dataSources/2967
                  created:
                    type: string
                    description: Date the data source was created
                    example: '2021-01-01T00:00:00Z'
                  lastModified:
                    type: string
                    description: Date the data source was last modified
                    example: '2021-01-01T00:00:00Z'
                  pending:
                    type: boolean
                    description: If a data source is marked pending it won't be availble for users to select within Lucid
                    example: false
                  dataSet:
                    type: string
                    description: Link to get the data set for the data source
                    example: https://data.lucid.app/dataSets/2168
                  linkParameters:
                    type: object
                    description: Link parameters for the data source
                    example:
                      param1: value1
                      param2: value2
                  deleted:
                    type: string
                    description: Date the data source was deleted
                    example: '2021-01-01T00:00:00Z'
                required:
                - uri
                - name
                - sourceGrants
                - adapterType
                - collections
                - created
                - lastModified
                - pending
                - dataSet
                example:
                  uri: https://data.lucid.app/dataSources/2967
                  name: Internal Org Chart
                  sourceGrants: https://data.lucid.app/sourceGrants?dataSource=https://data.lucid.app/dataSources/2967
                  adapterType: CSV
                  collections: https://data.lucid.app/collections?dataSource=https://data.lucid.app/dataSources/2967
                  created: '2021-01-01T00:00:00Z'
                  lastModified: '2021-01-01T00:00:00Z'
                  pending: false
                  dataSet: https://data.lucid.app/dataSets/2168
                  linkParameters:
                    param1: value1
                    param2: value2
                  deleted: '2021-01-01T00:00:00Z'
    patch:
      summary: Update Data Source
      description: 'This endpoint takes a JSON object and uses it to update the data source''s name and/or adapter type. The JSON object of the updated data source is returned. Updates will only occur if the user has access to the data source.

        '
      operationId: updateDataSource
      tags:
      - Data Source
      security:
      - OAuth2:
        - data-service.admin
      parameters:
      - name: dataSourceId
        in: path
        description: ID of data source to update
        required: true
        schema:
          type: integer
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                name:
                  type: string
                  description: New name for the data source being updated
                  example: Updated Data Source name
                adapterType:
                  type: string
                  description: New adapter type for the data source being update. Valid values are `CSV`, `DATA_API`, and `UNKNOWN`
                  example: CSV
              example:
                name: Updated Data Source name
                adapterType: CSV
      responses:
        '200':
          description: OK with Data Source
          content:
            application/json:
              schema:
                type: object
                properties:
                  uri:
                    type: string
                    description: URI of the data source
                    example: https://data.lucid.app/dataSources/2967
                  name:
                    type: string
                    description: Name of the data source
                    example: Internal Org Chart
                  sourceGrants:
                    type: string
                    description: Link to get grants for the data source
                    example: https://data.lucid.app/sourceGrants?dataSource=https://data.lucid.app/dataSources/2967
                  adapterType:
                    type: string
                    description: Type of adapter used to create the data source. Valid values are `CSV`, `DATA_API`, and `UNKNOWN`
                    example: CSV
                  collections:
                    type: string
                    description: Link to get collections for the data source
                    example: https://data.lucid.app/collections?dataSource=https://data.lucid.app/dataSources/2967
                  created:
                    type: string
                    description: Date the data source was created
                    example: '2021-01-01T00:00:00Z'
                  lastModified:
                    type: string
                    description: Date the data source was last modified
                    example: '2021-01-01T00:00:00Z'
                  pending:
                    type: boolean
                    description: If a data source is marked pending it won't be availble for users to select within Lucid
                    example: false
                  dataSet:
                    type: string
                    description: Link to get the data set for the data source
                    example: https://data.lucid.app/dataSets/2168
                  linkParameters:
                    type: object
                    description: Link parameters for the data source
                    example:
                      param1: value1
                      param2: value2
                  deleted:
                    type: string
                    description: Date the data source was deleted
                    example: '2021-01-01T00:00:00Z'
                required:
                - uri
                - name
                - sourceGrants
                - adapterType
                - collections
                - created
                - lastModified
                - pending
                - dataSet
                example:
                  uri: https://data.lucid.app/dataSources/2967
                  name: Updated Data Source name
                  sourceGrants: https://data.lucid.app/sourceGrants?dataSource=https://data.lucid.app/dataSources/2967
                  adapterType: CSV
                  collections: https://data.lucid.app/collections?dataSource=https://data.lucid.app/dataSources/2967
                  created: '2021-01-01T00:00:00Z'
                  lastModified: '2021-01-01T00:00:00Z'
                  pending: false
                  dataSet: https://data.lucid.app/dataSets/2168
    delete:
      summary: Delete Data Source
      description: 'This removes the specified data source and anything related to it (collections, schema, items, link parameters). Once deleted, none of the information can be recovered.

        '
      operationId: deleteDataSource
      tags:
      - Data Source
      security:
      - OAuth2:
        - data-service.admin
      parameters:
      - name: dataSourceId
        in: path
        description: ID of data source to delete
        required: true
        schema:
          type: integer
      responses:
        '200':
          description: OK
  /adapter/csv:
    post:
      summary: Create Data Source from CSV
      description: 'If able to successfully parse the attached file as a CSV file, a new data source with be created (with the same name as the attached file) that includes a single collection. The single collection in the newly created data source will contain the data from the CSV file. Each row will be an item, and each column will be labelled A, B, C, …, AA, AB, AC, .. in the order in which they were in the original file. There will be a single metadata collection created which represents the mapping between the id of each created item and the original row number of the row it was created from.

        '
      operationId: createDataSourceFromCSV
      tags:
      - Data Source
      security:
      - OAuth2:
        - data-service.admin
      requestBody:
        required: true
        content:
          multipart/form-data:
            schema:
              type: object
              properties:
                file:
                  type: string
                  format: binary
                  description: CSV file to upload
              required:
              - file
              example:
                file: file=@location/file.csv
      responses:
        '200':
          description: OK with Data Source
          content:
            application/json:
              schema:
                type: object
                properties:
                  uri:
                    type: string
                    description: URI of the data source
                    example: https://data.lucid.app/dataSources/2967
                  name:
                    type: string
                    description: Name of the data source
                    example: file
                  sourceGrants:
                    type: string
                    description: Link to get grants for the data source
                    example: https://data.lucid.app/sourceGrants?dataSource=https://data.lucid.app/dataSources/2967
                  adapterType:
                    type: string
                    description: Type of adapter used to create the data source. Valid values are `CSV`, `DATA_API`, and `UNKNOWN`
                    example: CSV
                  collections:
                    type: string
                    description: Link to get collections for the data source
                    example: https://data.lucid.app/collections?dataSource=https://data.lucid.app/dataSources/2967
                  created:
                    type: string
                    description: Date the data source was created
                    example: '2021-01-01T00:00:00Z'
                  lastModified:
                    type: string
                    description: Date the data source was last modified
                    example: '2021-01-01T00:00:00Z'
                  pending:
                    type: boolean
                    description: If a data source is marked pending it won't be availble for users to select within Lucid
                    example: false
                  dataSet:
                    type: string
                    description: Link to get the data set for the data source
                    example: https://data.lucid.app/dataSets/2168
                  linkParameters:
                    type: object
                    description: Link parameters for the data source
                    example:
                      param1: value1
                      param2: value2
                  deleted:
                    type: string
                    description: Date the data source was deleted
                    example: '2021-01-01T00:00:00Z'
                required:
                - uri
                - name
                - sourceGrants
                - adapterType
                - collections
                - created
                - lastModified
                - pending
                - dataSet
                example:
                  uri: https://data.lucid.app/dataSources/2967
                  name: file
                  sourceGrants: https://data.lucid.app/sourceGrants?dataSource=https://data.lucid.app/dataSources/2967
                  adapterType: CSV
                  collections: https://data.lucid.app/collections?dataSource=https://data.lucid.app/dataSources/2967
                  created: '2021-01-01T00:00:00Z'
                  lastModified: '2021-01-01T00:00:00Z'
                  pending: false
                  dataSet: https://data.lucid.app/dataSets/2168
                  linkParameters:
                    param1: value1
                    param2: value2
                  deleted: '2021-01-01T00:00:00Z'
        '400':
          description: Bad Request if no file provided or unable to read file
          content:
            application/json:
              schema:
                type: object
                properties:
                  message:
                    type: string
                    description: Error message
                    example: Invalid file format
    put:
      summary: Update Data Source from CSV
      description: 'If able to successfully parse the attached file as a CSV file, the endpoint will overwrite the contents of the single collection with the new data. The collection reference is left unchanged, but will have new items.


        A specific collection in a data source can be replaced by including both the data source and collection query parameters. In this case, the items in that single collection will be overwritten with the values from the CSV. The target collection''s id will remain the same, i.e., the original collection is the same, just the items have changed. The specified collection must belong to the specified data source.

        '
      operationId: updateDataSourceFromCSV
      tags:
      - Data Source
      security:
      - OAuth2:
        - data-service.admin
      parameters:
      - name: dataSource
        in: query
        description: URI of Data source to update
        required: true
        schema:
          type: string
      - name: collection
        in: query
        description: URI of Collection to update
        required: false
        schema:
          type: string
      requestBody:
        required: true
        content:
          multipart/form-data:
            schema:
              type: object
              properties:
                file:
                  type: string
                  format: binary
                  description: CSV file to upload
              required:
              - file
              example:
                file: file=@location/file.csv
      responses:
        '200':
          description: OK with Data Source
          content:
            application/json:
              schema:
                type: object
                properties:
                  uri:
                    type: string
                    description: URI of the data source
                    example: https://data.lucid.app/dataSources/2967
                  name:
                    type: string
                    description: Name of the data source
                    example: file
                  sourceGrants:
                    type: string
                    description: Link to get grants for the data source
                    example: https://data.lucid.app/sourceGrants?dataSource=https://data.lucid.app/dataSources/2967
                  adapterType:
                    type: string
                    description: Type of adapter used to create the data source. Valid values are `CSV`, `DATA_API`, and `UNKNOWN`
                    example: CSV
                  collections:
                    type: string
                    description: Link to get collections for the data source
                    example: https://data.lucid.app/collections?dataSource=https://data.lucid.app/dataSources/2967
                  created:
                    type: string
                    description: Date the data source was created
                    example: '2021-01-01T00:00:00Z'
                  lastModified:
                    type: string
                    description: Date the data source was last modified
                    example: '2021-01-01T00:00:00Z'
                  pending:
                    type: boolean
                    description: If a data source is marked pending it won't be availble for users to select within Lucid
                    example: false
                  dataSet:
                    type: string
                    description: Link to get the data set for the data source
                    example: https://data.lucid.app/dataSets/2168
                  linkParameters:
                    type: object
                    description: Link parameters for the data source
                    example:
                      param1: value1
                      param2: value2
                  deleted:
                    type: string
                    description: Date the data source was deleted
                    example: '2021-01-01T00:00:00Z'
                required:
                - uri
                - name
                - sourceGrants
                - adapterType
                - collections
                - created
                - lastModified
                - pending
                - dataSet
                example:
                  uri: https://data.lucid.app/dataSources/2967
                  name: file
                  sourceGrants: https://data.lucid.app/sourceGrants?dataSource=https://data.lucid.app/dataSources/2967
                  adapterType: CSV
                  collections: https://data.lucid.app/collections?dataSource=https://data.lucid.app/dataSources/2967
                  created: '2021-01-01T00:00:00Z'
                  lastModified: '2021-01-01T00:00:00Z'
                  pending: false
                  dataSet: https://data.lucid.app/dataSets/2168
                  linkParameters:
                    param1: value1
                    param2: value2
                  deleted: '2021-01-01T00:00:00Z'
        '400':
          description: Bad Request if no file provided, unable to read file, or datasource query parameter is missing
          content:
            application/json:
              schema:
                type: object
                properties:
                  message:
                    type: string
                    description: Error message
                    example: Invalid file format
components:
  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:
            data-service.admin: Scope needed for access to the Data APIs.
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-data-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.'