List Workflow MCP Servers

List the MCP servers a workspace publishes. These serve deployed workflows as tools to outside MCP clients, which is the opposite direction from GET /api/v2/mcp-servers — that lists external servers Sim calls. Each entry carries the endpoint clients connect to and the tool names it exposes; those names are gathered under a 2,000-tool budget shared across the page, so on a page of unusually large servers the trailing entries can list fewer names than they publish. Read one server's full inventory with GET /api/v2/workflow-mcp-servers/{serverId}/tools. A workspace API key is rejected with 403; use a personal API key.

GET/api/v2/workflow-mcp-servers

Authorization

apiKey
X-API-Key<token>

Your Sim API key, personal or workspace-scoped. Generate one under Settings, then API Keys. Operations that reject workspace keys say so in their own description.

In: header

Query Parameters

workspaceId*string

Workspace whose published MCP servers to list.

Length1 <= length <= 128
sortBy?string

Field used to sort the result. Sorting by name is case-sensitive and follows the storage collation, so do not rely on a case-insensitive order.

Default"createdAt"
Value in"name" | "createdAt" | "updatedAt"
sortOrder?string

Sort direction.

Default"desc"
Value in"asc" | "desc"
limit?integer

Maximum workflow-MCP servers to return per page. Must be a whole number from 1 to 100. Defaults to 50.

Default50
Range1 <= value <= 100
cursor?string

Opaque cursor from the previous page. Send it back with the same sort and filters; only limit may change. Change anything else and pagination must restart without a cursor.

Length1 <= length

Response Body

application/json

application/json

application/json

application/json

application/json

application/json

application/json

application/json

curl -X GET "https://www.sim.ai/api/v2/workflow-mcp-servers?workspaceId=string" \  -H "X-API-Key: YOUR_API_KEY"
{
  "data": [
    {
      "id": "wfmcp_01J8ZK3QW4M6X2R9T7B5C0V2",
      "name": "Support agents",
      "description": "Ticket triage and escalation workflows.",
      "isPublic": false,
      "mcpServerUrl": "https://www.sim.ai/api/mcp/serve/wfmcp_01J8ZK3QW4M6X2R9T7B5C0V2",
      "createdAt": "2026-06-12T10:30:00.000Z",
      "updatedAt": "2026-06-12T10:30:00.000Z",
      "toolCount": 1,
      "toolNames": [
        "triage_ticket"
      ]
    }
  ],
  "nextCursor": null,
  "toolNamesTruncated": false
}
{
  "error": {
    "code": "BAD_REQUEST",
    "message": "Invalid request"
  }
}
{
  "error": {
    "code": "UNAUTHORIZED",
    "message": "API key required"
  }
}
{
  "error": {
    "code": "FORBIDDEN",
    "message": "Insufficient workspace permissions",
    "details": {
      "code": "INSUFFICIENT_WORKSPACE_ROLE"
    }
  }
}
{
  "error": {
    "code": "NOT_FOUND",
    "message": "Not found"
  }
}
{
  "error": {
    "code": "RATE_LIMITED",
    "message": "API rate limit exceeded",
    "details": {
      "retryAfter": "2026-01-01T00:00:30.000Z"
    }
  }
}
{
  "error": {
    "code": "INTERNAL_ERROR",
    "message": "Internal server error"
  }
}
{
  "error": {
    "code": "SERVICE_UNAVAILABLE",
    "message": "Service temporarily unavailable"
  }
}