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MCP servers

Update workflow MCP server

Update a workflow MCP server’s name, description, or public access. Omitted fields stay unchanged; `description: null` clears the description. With `isPublic: true`, anyone holding its URL can execute its tools without a Sim API key. Deploy or undeploy tools separately. Requires workspace Admin access. Workspace API keys return `403`; use a personal API key or scoped OAuth token. OAuth scope: `api:write`.

PATCH/api/v2/workflow-mcp-servers/{serverId}

Update a workflow MCP server’s name, description, or public access. Omitted fields stay unchanged; description: null clears the description. With isPublic: true, anyone holding its URL can execute its tools without a Sim API key. Deploy or undeploy tools separately. Requires workspace Admin access. Workspace API keys return 403; use a personal API key or scoped OAuth token.

OAuth scope: api:write.

Authentication

Send a personal or workspace API key in X-API-Key. See key types and access; operations that reject workspace keys say so in their description.

Send X-API-Key in the request header.

Alternatively

Send a Sim OAuth access token in Authorization: Bearer. See OAuth authentication and scopes.

Authorization: Bearer YOUR_ACCESS_TOKEN

Required scopes: api:write

OAuth flows
json
{
  "authorizationCode": {
    "authorizationUrl": "https://www.sim.ai/api/auth/oauth2/authorize",
    "tokenUrl": "https://www.sim.ai/api/auth/oauth2/token",
    "refreshUrl": "https://www.sim.ai/api/auth/oauth2/token",
    "scopes": {
      "api:read": "Read your workspaces, workflows, files, tables, and logs",
      "api:write": "Read, create, change, run, and delete resources in your workspaces",
      "offline_access": "Stay signed in without asking again"
    }
  }
}

OAuth scope: api:write.

Path parameters

serverIdstringRequired

Unique workflow-MCP server identifier.

minLength
1

Request body

Required

Server fields to change. Omitted fields remain unchanged; description: null clears the description.

object

Server fields to change. Omitted fields remain unchanged; description: null clears the description.

3 fields
namestring

Server display name, shown to connecting MCP clients.

minLength
1
maxLength
255
descriptionvalue

New server description, or null to clear it.

Schema details

Any of

Option 1string
maxLength
2000
Option 2null
isPublicboolean

Whether the server answers MCP clients without a Sim API key.

Additional properties are not allowed.

Request example 1

json
{
  "isPublic": true
}

Responses

200

The updated MCP server.

object

The updated MCP server.

1 field
dataobjectRequired

Response data.

7 fields
idstringRequired

Unique workflow-MCP server identifier.

namestringRequired

Server display name, shown to connecting MCP clients.

descriptionvalueRequired

Optional server description, or null when unset.

Schema details

Any of

Option 1string
Option 2null
isPublicbooleanRequired

Whether the server answers MCP clients without a Sim API key.

mcpServerUrlstringRequired

MCP client endpoint. Use this returned URL instead of constructing one.

createdAtstringRequired

ISO 8601 timestamp when the server was created.

format
date-time
updatedAtstringRequired

ISO 8601 timestamp when the server was last modified.

format
date-time

Additional properties are not allowed.

Additional properties are not allowed.

Response example 1

json
{
  "data": {
    "id": "wfmcp_01J8ZK3QW4M6X2R9T7B5C0V2",
    "name": "Support agents",
    "description": "Ticket triage and escalation workflows.",
    "isPublic": true,
    "mcpServerUrl": "https://www.sim.ai/api/mcp/serve/wfmcp_01J8ZK3QW4M6X2R9T7B5C0V2",
    "createdAt": "2026-06-12T10:30:00.000Z",
    "updatedAt": "2026-06-12T10:30:00.000Z"
  }
}

Response headers

X-RateLimit-Limitinteger

Maximum requests allowed in the current window.

minimum
0
maximum
9007199254740991
X-RateLimit-Remaininginteger

Requests remaining in the current window.

minimum
0
maximum
9007199254740991
X-RateLimit-Resetstring

ISO 8601 timestamp when the current rate-limit window resets.

format
date-time
pattern
^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d(?::[0-5]\d(?:\.\d+)?)?(?:Z))$
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