> ## Documentation Index
> Fetch the complete documentation index at: https://docs.darwin.so/llms.txt
> Use this file to discover all available pages before exploring further.

# Assign an authorized account

> Owner user credentials only. Assigns a sanitized provider authorization to one AI, Capability, or transaction without exposing credentials. Request-only assignments must expire within 24 hours; saved assignments require explicit consent.



## OpenAPI

````yaml /openapi-v2.json post /account/ais/{aiId}/connections/{connectionId}/assignments
openapi: 3.1.0
info:
  title: Darwin API v2
  version: 2.0.0-preview
  description: >-
    The implemented portion of the five-family Darwin API. Operations are added
    only after runtime and contract verification.
servers:
  - url: https://api.darwin.so/api/v2
    description: Production — use live `darwin_…` keys.
  - url: https://api.dev.darwin.so/api/v2
    description: Sandbox — use isolated `darwin_test_…` keys.
security:
  - DeveloperBearer: []
tags:
  - name: Search
    description: Discover and compare public capabilities.
  - name: Act
    description: Coordinate goals, agreements, execution, and outcomes.
  - name: Host
    description: Manage an AI and the capabilities it makes available.
  - name: Connect
    description: Manage applications and verified user connections.
  - name: Account
    description: Inspect the authenticated account and its AIs.
paths:
  /account/ais/{aiId}/connections/{connectionId}/assignments:
    post:
      tags:
        - Account
      summary: Assign an authorized account
      description: >-
        Owner user credentials only. Assigns a sanitized provider authorization
        to one AI, Capability, or transaction without exposing credentials.
        Request-only assignments must expire within 24 hours; saved assignments
        require explicit consent.
      operationId: createAccountAiConnectionAssignment
      parameters:
        - name: aiId
          in: path
          required: true
          schema:
            type: string
        - name: connectionId
          in: path
          required: true
          schema:
            type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/CreateConnectionAssignmentRequest'
      responses:
        '201':
          description: The scoped account assignment.
          content:
            application/json:
              schema:
                type: object
                required:
                  - assignment
                properties:
                  assignment:
                    $ref: '#/components/schemas/ConnectionAssignment'
        '400':
          description: The request was invalid.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '401':
          description: The bearer key is missing, invalid, expired, or revoked.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '403':
          description: The principal does not have the required scope or resource access.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '404':
          description: The resource was not found for this principal.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
components:
  schemas:
    CreateConnectionAssignmentRequest:
      type: object
      additionalProperties: false
      required:
        - targetKind
        - targetId
        - retention
        - scopes
      properties:
        targetKind:
          type: string
          enum:
            - AI
            - CAPABILITY
            - TRANSACTION
        targetId:
          type: string
          maxLength: 200
        retention:
          type: string
          enum:
            - REQUEST_ONLY
            - SAVED_WITH_CONSENT
        scopes:
          type: array
          maxItems: 100
          items:
            type: string
            maxLength: 200
        expiresAt:
          type: string
          format: date-time
        consented:
          type: boolean
          description: >-
            Must be true for SAVED_WITH_CONSENT after the user completes
            Darwin-hosted consent.
    ConnectionAssignment:
      type: object
      additionalProperties: false
      required:
        - id
        - targetKind
        - targetId
        - retentionMode
        - scopes
        - status
      properties:
        id:
          type: string
        targetKind:
          type: string
          enum:
            - AI
            - CAPABILITY
            - TRANSACTION
        targetId:
          type: string
        retentionMode:
          type: string
          enum:
            - REQUEST_ONLY
            - SAVED_WITH_CONSENT
        scopes:
          type: array
          items:
            type: string
        status:
          type: string
          enum:
            - ACTIVE
            - CONSUMED
            - REVOKED
        consentedAt:
          type:
            - string
            - 'null'
          format: date-time
        expiresAt:
          type:
            - string
            - 'null'
          format: date-time
        consumedAt:
          type:
            - string
            - 'null'
          format: date-time
        revokedAt:
          type:
            - string
            - 'null'
          format: date-time
        createdAt:
          type: string
          format: date-time
        updatedAt:
          type: string
          format: date-time
    Error:
      type: object
      properties:
        statusCode:
          type: integer
        message:
          oneOf:
            - type: string
            - type: array
              items:
                type: string
        error:
          type: string
  securitySchemes:
    DeveloperBearer:
      type: http
      scheme: bearer
      bearerFormat: Darwin API key
      description: >-
        Production keys begin with `darwin_`. Isolated sandbox keys begin with
        `darwin_test_`. Create keys in Developer settings.

````