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

# List agents

> Returns pre-built agents and agents registered in your organization. Each item includes its exposed configuration. Private instructions are not returned.



## OpenAPI

````yaml /reference/openapi.yaml get /agents
openapi: 3.1.0
info:
  title: Antigen API
  version: v1
  description: >-
    Work with the same agents, runs, and resources your team uses in Antigen.
    Requests and responses use camelCase fields. List endpoints return arrays.
    See the [overview](/reference) for authentication, updates, and errors.
servers:
  - url: https://api.antigen.sh/v1
security:
  - ApiKeyAuth: []
tags:
  - name: Agents
    description: Retrieve, compose, and register agent configurations.
  - name: Models
    description: Models available to agents in your organization.
  - name: Targets
    description: Submit testing scope for human approval.
  - name: Runs
    description: Execute agents and control their work.
  - name: Vulnerabilities
    description: Track weaknesses, remediation, status, and assignment.
  - name: Evidence
    description: Read supporting file metadata and retrieve file contents.
  - name: Reports
    description: Read and export captured engagement results.
  - name: Human tasks
    description: Ask people for help and follow their responses.
  - name: Hooks
    description: Connect status and assignment changes to your own service.
  - name: Asset Map
    description: Read your organization’s infrastructure graph.
  - name: Integrations
    description: Inspect and disconnect provider connections.
  - name: API keys
    description: Create and revoke credentials for automation.
paths:
  /agents:
    get:
      tags:
        - Agents
      summary: List agents
      description: >-
        Returns pre-built agents and agents registered in your organization.
        Each item includes its exposed configuration. Private instructions are
        not returned.
      operationId: listAgents
      responses:
        '200':
          description: Successful response.
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/Agent'
              example:
                - name: our-security-agent
                  builtIn: false
                  base: tcell
                  model: claude-opus-5-cyber
                  skills:
                    - >-
                      Check authorization when one account requests another
                      account’s resources.
                  guardrails: Do not attempt denial of service.
                  tools:
                    - asset_map
                    - human_tasks
        '401':
          $ref: '#/components/responses/Error401'
        '403':
          $ref: '#/components/responses/Error403'
        '429':
          $ref: '#/components/responses/Error429'
components:
  schemas:
    Agent:
      type: object
      properties:
        name:
          type: string
          description: Registered name or pre-built agent name.
          minLength: 1
        builtIn:
          type: boolean
        base:
          type:
            - string
            - 'null'
          enum:
            - tcell
            - triage-agent
            - remediation-agent
            - null
          description: >-
            Underlying pre-built agent. Its private instructions remain managed
            by Antigen. Use null to assemble an agent without a pre-built base.
        model:
          type: string
          description: Model ID from GET /models.
          minLength: 1
        skills:
          type: array
          items:
            type: string
          description: Instruction strings. Send file contents, not file paths.
        guardrails:
          type: string
          description: Natural-language constraints on agent behavior.
        tools:
          type: array
          items:
            type: string
          description: >-
            Names of tools available to the agent, such as asset_map and
            human_tasks.
      required:
        - name
        - builtIn
        - base
        - model
        - skills
        - guardrails
        - tools
      additionalProperties: false
      example:
        name: our-security-agent
        builtIn: false
        base: tcell
        model: claude-opus-5-cyber
        skills:
          - >-
            Check authorization when one account requests another account’s
            resources.
        guardrails: Do not attempt denial of service.
        tools:
          - asset_map
          - human_tasks
    Error:
      type: object
      properties:
        error:
          type: object
          properties:
            code:
              type: string
              description: Stable error code.
            message:
              type: string
              description: Description of the problem.
          required:
            - code
            - message
          additionalProperties: false
      required:
        - error
      additionalProperties: false
      example:
        error:
          code: invalid_request
          message: The target value is required.
  responses:
    Error401:
      description: Authentication required
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
          example:
            error:
              code: unauthorized
              message: Supply a valid API key.
    Error403:
      description: Permission denied
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
          example:
            error:
              code: forbidden
              message: The API key does not permit this operation or requested scope.
    Error429:
      description: Too many requests
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
          example:
            error:
              code: rate_limited
              message: Retry after the interval in Retry-After.
      headers:
        Retry-After:
          description: Seconds to wait before retrying.
          schema:
            type: integer
            minimum: 1
  securitySchemes:
    ApiKeyAuth:
      type: apiKey
      in: header
      name: x-api-key
      description: >-
        API key from your organization. Supply the value directly, without a
        Bearer prefix.

````