Anthropic Agents API

openapi: 3.1.0
info:
  title: Anthropic Admin Agents API
  description: Manage administrative functions for Anthropic organizations, workspaces, users, invites, and API keys.
  version: 1.0.0
  contact:
    name: Anthropic
    url: https://www.anthropic.com
    email: support@anthropic.com
  license:
    name: Anthropic API License
    url: https://www.anthropic.com/terms
servers:
- url: https://api.anthropic.com/v1
  description: Production Server
security:
- AdminApiKeyAuth: []
tags:
- name: Agents
  description: Reusable, versioned agent configurations
paths:
  /v1/agents:
    post:
      summary: Anthropic Create Agent
      description: Define a reusable, versioned agent.
      operationId: createAgent
      tags:
      - Agents
      parameters:
      - $ref: '#/components/parameters/AnthropicVersion'
      - $ref: '#/components/parameters/AnthropicBeta'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/CreateAgentRequest'
      responses:
        '200':
          description: Agent created.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Agent'
        4XX:
          $ref: '#/components/responses/ErrorResponse'
    get:
      summary: Anthropic List Agents
      description: Paginated list of agents in the workspace.
      operationId: listAgents
      tags:
      - Agents
      parameters:
      - $ref: '#/components/parameters/AnthropicVersion'
      - $ref: '#/components/parameters/AnthropicBeta'
      - $ref: '#/components/parameters/Limit'
      responses:
        '200':
          description: List of agents.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/AgentList'
  /v1/agents/{agent_id}:
    get:
      summary: Anthropic Get Agent
      description: Retrieve an agent's latest version.
      operationId: getAgent
      tags:
      - Agents
      parameters:
      - $ref: '#/components/parameters/AnthropicVersion'
      - $ref: '#/components/parameters/AnthropicBeta'
      - $ref: '#/components/parameters/AgentIdPath'
      responses:
        '200':
          description: Agent retrieved.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Agent'
    post:
      summary: Anthropic Update Agent
      description: 'Update an agent. Pass the current version to optimistically lock the update. A new version is created when fields change.

        '
      operationId: updateAgent
      tags:
      - Agents
      parameters:
      - $ref: '#/components/parameters/AnthropicVersion'
      - $ref: '#/components/parameters/AnthropicBeta'
      - $ref: '#/components/parameters/AgentIdPath'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/UpdateAgentRequest'
      responses:
        '200':
          description: Agent updated; new version returned.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Agent'
  /v1/agents/{agent_id}/archive:
    post:
      summary: Anthropic Archive Agent
      description: Archive an agent; existing sessions continue running.
      operationId: archiveAgent
      tags:
      - Agents
      parameters:
      - $ref: '#/components/parameters/AnthropicVersion'
      - $ref: '#/components/parameters/AnthropicBeta'
      - $ref: '#/components/parameters/AgentIdPath'
      responses:
        '200':
          description: Agent archived.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Agent'
  /v1/agents/{agent_id}/versions:
    get:
      summary: Anthropic List Agent Versions
      description: Full version history for the agent.
      operationId: listAgentVersions
      tags:
      - Agents
      parameters:
      - $ref: '#/components/parameters/AnthropicVersion'
      - $ref: '#/components/parameters/AnthropicBeta'
      - $ref: '#/components/parameters/AgentIdPath'
      responses:
        '200':
          description: Agent versions.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/AgentList'
components:
  responses:
    ErrorResponse:
      description: Error response.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
  parameters:
    AnthropicVersion:
      name: anthropic-version
      in: header
      required: true
      schema:
        type: string
        default: '2023-06-01'
    AgentIdPath:
      name: agent_id
      in: path
      required: true
      schema:
        type: string
    Limit:
      name: limit
      in: query
      required: false
      schema:
        type: integer
        default: 20
    AnthropicBeta:
      name: anthropic-beta
      in: header
      required: true
      description: Must include managed-agents-2026-04-01.
      schema:
        type: string
        default: managed-agents-2026-04-01
  schemas:
    UpdateAgentRequest:
      type: object
      required:
      - version
      properties:
        version:
          type: integer
        name:
          type: string
        model:
          oneOf:
          - type: string
          - type: object
        system:
          type: string
          nullable: true
        description:
          type: string
          nullable: true
        tools:
          type: array
          items:
            type: object
        mcp_servers:
          type: array
          items:
            type: object
        skills:
          type: array
          items:
            type: object
        metadata:
          type: object
    Agent:
      type: object
      properties:
        id:
          type: string
        type:
          type: string
          example: agent
        name:
          type: string
        model:
          type: object
          properties:
            id:
              type: string
            speed:
              type: string
        system:
          type: string
          nullable: true
        description:
          type: string
          nullable: true
        tools:
          type: array
          items:
            type: object
        skills:
          type: array
          items:
            type: object
        mcp_servers:
          type: array
          items:
            type: object
        metadata:
          type: object
        version:
          type: integer
        created_at:
          type: string
          format: date-time
        updated_at:
          type: string
          format: date-time
        archived_at:
          type: string
          format: date-time
          nullable: true
    CreateAgentRequest:
      type: object
      required:
      - name
      - model
      properties:
        name:
          type: string
          example: Coding Assistant
        model:
          oneOf:
          - type: string
            example: claude-opus-4-7
          - type: object
            properties:
              id:
                type: string
              speed:
                type: string
                enum:
                - standard
                - fast
        system:
          type: string
        description:
          type: string
        tools:
          type: array
          items:
            type: object
        mcp_servers:
          type: array
          items:
            type: object
        skills:
          type: array
          items:
            type: object
        multiagent:
          type: object
        metadata:
          type: object
    AgentList:
      type: object
      properties:
        data:
          type: array
          items:
            $ref: '#/components/schemas/Agent'
        has_more:
          type: boolean
    Error:
      type: object
      properties:
        type:
          type: string
        error:
          type: object
          properties:
            type:
              type: string
            message:
              type: string
  securitySchemes:
    AdminApiKeyAuth:
      type: apiKey
      in: header
      name: x-api-key
      description: Your Admin API key for authentication (starts with sk-ant-admin...).