openapi: 3.1.0
info:
  title: LangSmith access_policies oauth API
  description: 'The LangSmith API is used to programmatically create and manage LangSmith resources.


    ## Host

    https://api.smith.langchain.com


    ## Authentication

    To authenticate with the LangSmith API, set the `X-Api-Key` header

    to a valid [LangSmith API key](https://docs.langchain.com/langsmith/create-account-api-key#create-an-api-key).


    '
  version: 0.1.0
servers:
- url: /
tags:
- name: oauth
paths:
  /.well-known/oauth-authorization-server:
    get:
      security:
      - API Key: []
      - Tenant ID: []
      - Bearer Auth: []
      description: Returns OAuth2 authorization server metadata per RFC 8414, including supported endpoints, grant types, and response types.
      tags:
      - oauth
      summary: Get OAuth2 authorization server metadata
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/oauth.AuthorizationServerMetadata'
        '500':
          description: Internal Server Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/oauth.TokenErrorResponse'
      parameters: []
  /oauth/authorize:
    get:
      security:
      - API Key: []
      - Tenant ID: []
      - Bearer Auth: []
      description: Validates authorization request parameters and redirects to the frontend consent page per RFC 6749.
      tags:
      - oauth
      summary: Initiate OAuth2 authorization
      parameters:
      - description: Must be 'code'
        name: response_type
        in: query
        required: true
        schema:
          type: string
          title: Response Type
      - description: OAuth2 client ID
        name: client_id
        in: query
        required: true
        schema:
          type: string
          title: Client Id
      - description: Redirect URI registered with the client
        name: redirect_uri
        in: query
        required: true
        schema:
          type: string
          title: Redirect Uri
      - description: PKCE code challenge
        name: code_challenge
        in: query
        required: true
        schema:
          type: string
          title: Code Challenge
      - description: PKCE method, must be 'S256'
        name: code_challenge_method
        in: query
        required: true
        schema:
          type: string
          title: Code Challenge Method
      - description: Opaque state value to prevent CSRF
        name: state
        in: query
        schema:
          type: string
          title: State
      responses:
        '302':
          description: Found
        '400':
          description: Bad Request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/oauth.TokenErrorResponse'
  /oauth/authorize/approve:
    post:
      security:
      - API Key: []
      - Tenant ID: []
      - Bearer Auth: []
      description: Issues an authorization code after the authenticated user approves the request. Called by the frontend consent page. Requires authentication.
      tags:
      - oauth
      summary: Approve OAuth2 authorization request
      parameters: []
      responses:
        '200':
          description: JSON body with redirect_uri the frontend should navigate the browser to
          content:
            application/json:
              schema:
                type: object
                additionalProperties:
                  type: string
        '400':
          description: Bad Request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/oauth.TokenErrorResponse'
        '401':
          description: Unauthorized
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/oauth.TokenErrorResponse'
        '403':
          description: Forbidden
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/oauth.TokenErrorResponse'
        '500':
          description: Internal Server Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/oauth.TokenErrorResponse'
      requestBody:
        required: true
        content:
          multipart/form-data:
            schema:
              type: object
              properties:
                organization_id:
                  type: string
                  description: Organization ID; must match the authenticated org
                workspace_id:
                  type: string
                  description: Default workspace ID; must belong to organization and be accessible to user
                client_id:
                  type: string
                  description: OAuth2 client ID
                redirect_uri:
                  type: string
                  description: Redirect URI registered with the client
                code_challenge:
                  type: string
                  description: PKCE code challenge
                code_challenge_method:
                  type: string
                  description: PKCE method, must be 'S256'
                state:
                  type: string
                  description: Opaque state value to prevent CSRF
              required:
              - organization_id
              - client_id
              - redirect_uri
              - code_challenge
              - code_challenge_method
  /oauth/device/authorize:
    post:
      security:
      - API Key: []
      - Tenant ID: []
      - Bearer Auth: []
      description: Marks a device code as authorized for the authenticated user. Called by the /activate page when the user enters their user code. Requires authentication.
      tags:
      - oauth
      summary: Authorize a device code
      parameters: []
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                type: object
                additionalProperties:
                  type: string
        '400':
          description: Bad Request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/oauth.TokenErrorResponse'
        '401':
          description: Unauthorized
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/oauth.TokenErrorResponse'
        '403':
          description: Forbidden
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/oauth.TokenErrorResponse'
      requestBody:
        required: true
        content:
          multipart/form-data:
            schema:
              type: object
              properties:
                organization_id:
                  type: string
                  description: Organization ID; must match the authenticated org
                workspace_id:
                  type: string
                  description: Default workspace ID; must belong to organization and be accessible to user
                user_code:
                  type: string
                  description: User code displayed on the device
              required:
              - organization_id
              - user_code
  /oauth/device/code:
    post:
      security:
      - API Key: []
      - Tenant ID: []
      - Bearer Auth: []
      description: Issues a device code and user code for the device authorization flow per RFC 8628.
      tags:
      - oauth
      summary: Request OAuth2 device authorization
      parameters: []
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/oauth.DeviceCodeResponse'
        '400':
          description: Bad Request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/oauth.TokenErrorResponse'
        '500':
          description: Internal Server Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/oauth.TokenErrorResponse'
      requestBody:
        required: true
        content:
          multipart/form-data:
            schema:
              type: object
              properties:
                client_id:
                  type: string
                  description: OAuth2 client ID
              required:
              - client_id
  /oauth/register:
    post:
      security:
      - API Key: []
      - Tenant ID: []
      - Bearer Auth: []
      description: Public RFC 7591 Dynamic Client Registration endpoint. Only mints public clients with loopback HTTP or HTTPS-with-domain redirect URIs. Body limit 8 KB.
      tags:
      - oauth
      summary: Register an OAuth2 dynamic client
      parameters: []
      responses:
        '201':
          description: Created
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/oauth.ClientRegistrationResponse'
        '400':
          description: Bad Request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/oauth.TokenErrorResponse'
        '413':
          description: Request Entity Too Large
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/oauth.TokenErrorResponse'
        '500':
          description: Internal Server Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/oauth.TokenErrorResponse'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/oauth.ClientRegistrationRequest'
  /oauth/revoke:
    post:
      security:
      - API Key: []
      - Tenant ID: []
      - Bearer Auth: []
      description: Revokes an access token or refresh token per RFC 7009. Always returns 200 regardless of whether the token was found.
      tags:
      - oauth
      summary: Revoke an OAuth2 token
      parameters: []
      responses:
        '200':
          description: OK
      requestBody:
        required: true
        content:
          multipart/form-data:
            schema:
              type: object
              properties:
                token:
                  type: string
                  description: Token to revoke (access token or refresh token)
              required:
              - token
  /oauth/token:
    post:
      security:
      - API Key: []
      - Tenant ID: []
      - Bearer Auth: []
      description: 'Token endpoint that dispatches by grant_type: authorization_code, urn:ietf:params:oauth:grant-type:device_code, or refresh_token.'
      tags:
      - oauth
      summary: Exchange grant for OAuth2 tokens
      parameters: []
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/oauth.TokenResponse'
        '400':
          description: Bad Request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/oauth.TokenErrorResponse'
        '500':
          description: Internal Server Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/oauth.TokenErrorResponse'
      requestBody:
        required: true
        content:
          multipart/form-data:
            schema:
              type: object
              properties:
                grant_type:
                  type: string
                  description: 'Grant type: authorization_code, urn:ietf:params:oauth:grant-type:device_code, or refresh_token'
                client_id:
                  type: string
                  description: OAuth2 client ID
                code:
                  type: string
                  description: Authorization code (authorization_code grant)
                code_verifier:
                  type: string
                  description: PKCE code verifier (authorization_code grant)
                redirect_uri:
                  type: string
                  description: Redirect URI (authorization_code grant)
                device_code:
                  type: string
                  description: Device code (device_code grant)
                refresh_token:
                  type: string
                  description: Refresh token (refresh_token grant)
              required:
              - grant_type
              - client_id
components:
  schemas:
    oauth.TokenResponse:
      type: object
      properties:
        access_token:
          type: string
        expires_in:
          type: integer
        refresh_token:
          type: string
        token_type:
          type: string
        workspace_id:
          type: string
    oauth.TokenErrorResponse:
      type: object
      properties:
        error:
          type: string
        error_description:
          type: string
    oauth.DeviceCodeResponse:
      type: object
      properties:
        device_code:
          type: string
        expires_in:
          type: integer
        interval:
          type: integer
        user_code:
          type: string
        verification_uri:
          type: string
    oauth.ClientRegistrationRequest:
      type: object
      properties:
        client_name:
          type: string
        grant_types:
          type: array
          items:
            type: string
        redirect_uris:
          type: array
          items:
            type: string
        response_types:
          type: array
          items:
            type: string
        scope:
          type: string
        token_endpoint_auth_method:
          type: string
    oauth.AuthorizationServerMetadata:
      type: object
      properties:
        authorization_endpoint:
          type: string
        code_challenge_methods_supported:
          type: array
          items:
            type: string
        device_authorization_endpoint:
          type: string
        grant_types_supported:
          type: array
          items:
            type: string
        issuer:
          type: string
        jwks_uri:
          type: string
        protected_resources_supported:
          type: array
          items:
            type: string
        registration_endpoint:
          type: string
        resource_parameter_supported:
          type: boolean
        response_types_supported:
          type: array
          items:
            type: string
        revocation_endpoint:
          type: string
        scopes_supported:
          type: array
          items:
            type: string
        token_endpoint:
          type: string
        token_endpoint_auth_methods_supported:
          type: array
          items:
            type: string
    oauth.ClientRegistrationResponse:
      type: object
      properties:
        client_id:
          type: string
        client_id_issued_at:
          type: integer
        client_name:
          type: string
        grant_types:
          type: array
          items:
            type: string
        redirect_uris:
          type: array
          items:
            type: string
        response_types:
          type: array
          items:
            type: string
        token_endpoint_auth_method:
          type: string
  securitySchemes:
    API Key:
      type: apiKey
      in: header
      name: X-API-Key
    Tenant ID:
      type: apiKey
      in: header
      name: X-Tenant-Id
    Bearer Auth:
      type: http
      description: Bearer tokens are used to authenticate from the UI. Must also specify x-tenant-id or x-organization-id (for org scoped apis).
      scheme: bearer
    Organization ID:
      type: apiKey
      in: header
      name: X-Organization-Id