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

# Replace an agent's MCP servers

> Replaces the agent's enabled MCP-server subset with the supplied list of server
slugs and returns the new subset; sending an empty list resets the agent to use all
installed MCP servers. Every requested slug must be an MCP server currently
installed for the workspace, otherwise the request is rejected (returns 400).
Returns 404 if the agent is not in the caller's workspace. Admin only.



## OpenAPI

````yaml PUT /v1/agents/{id}/mcp
openapi: 3.1.0
info:
  title: HQ API
  description: >-
    Public HTTP API for HQ. Authenticate with a Personal Access Token
    (`Authorization: Bearer hq_pat_...`) for server-side integrations, or an
    OAuth 2.1 authorization-code + PKCE flow for browser apps acting on a user's
    behalf. Both grant from the same resource:action scope vocabulary; an
    endpoint's required scope is listed under its `security`.
  license:
    name: Apache-2.0
    identifier: Apache-2.0
  version: 1.0.0
servers:
  - url: https://api.hq.zone
    description: HQ API (production)
security: []
tags:
  - name: me
    description: The signed-in user's own account
  - name: conversations
    description: Conversations and their messages
  - name: documents
    description: The content-addressed documents library
  - name: schedules
    description: Scheduled prompts and recurring tasks
  - name: agents
    description: Agents, their skills and integrations
  - name: memory
    description: What the assistant remembers (L5 governance)
  - name: tokens
    description: Personal Access Token management
  - name: billing
    description: Usage and billing
  - name: notifications
    description: In-app notification center
  - name: admin
    description: Workspace administration
  - name: integrations
    description: Workspace integrations (Slack, MCP, skills)
  - name: onboarding
    description: New-workspace onboarding wizard
  - name: auth
    description: Sign-in, sessions, and OAuth
paths:
  /v1/agents/{id}/mcp:
    put:
      tags:
        - agents
      summary: Replace an agent's MCP servers
      description: >-
        Replaces the agent's enabled MCP-server subset with the supplied list of
        server

        slugs and returns the new subset; sending an empty list resets the agent
        to use all

        installed MCP servers. Every requested slug must be an MCP server
        currently

        installed for the workspace, otherwise the request is rejected (returns
        400).

        Returns 404 if the agent is not in the caller's workspace. Admin only.
      operationId: replace_mcp
      parameters:
        - name: id
          in: path
          description: Agent id
          required: true
          schema:
            type: string
            format: uuid
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ReplaceMcpReq'
        required: true
      responses:
        '200':
          description: The new enabled MCP subset
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/McpResp'
        '400':
          description: A requested MCP server is not installed for this tenant
        '404':
          description: No such agent in this workspace
      security:
        - bearer_pat:
            - admin
        - oauth2:
            - admin
components:
  schemas:
    ReplaceMcpReq:
      type: object
      required:
        - enabled
      properties:
        enabled:
          type: array
          items:
            type: string
    McpResp:
      type: object
      required:
        - enabled
      properties:
        enabled:
          type: array
          items:
            type: string
  securitySchemes:
    bearer_pat:
      type: http
      scheme: bearer
      bearerFormat: hq_pat
      description: 'Personal Access Token. Send as `Authorization: Bearer hq_pat_...`.'
    oauth2:
      type: oauth2
      flows:
        authorizationCode:
          authorizationUrl: https://app.hq.zone/v1/oauth/authorize
          tokenUrl: https://api.hq.zone/v1/oauth/token
          refreshUrl: https://api.hq.zone/v1/oauth/token
          scopes:
            admin: Administer the workspace (users, settings, integrations)
            agents:read: View the agents in your workspace
            agents:write: Create and configure agents
            billing:read: View usage and billing information
            conversations:read: Read your conversations and their messages
            conversations:write: Start conversations and send messages on your behalf
            documents:read: Read your documents library
            documents:write: Upload and manage documents in your library
            memory:read: Read what the assistant remembers about you
            memory:write: Correct or delete what the assistant remembers
            schedules:read: View your scheduled tasks
            schedules:write: Create and manage scheduled tasks
            tables:read: Read your tables and their rows
            tables:write: Create tables and add, edit, or delete rows

````