List workflow MCP tools

GET/api/v2/workflow-mcp-servers/{serverId}/tools

List tool registrations ordered by name, including the workflowId used to remove each registration. Undeploying a workflow makes its registrations inactive; redeploying reactivates them. Results are capped at 2,000 tools: nextCursor is always null, and truncated marks an incomplete inventory that cannot be paginated. Requires workspace read access. Workspace API keys return 403; use a personal API key or scoped OAuth token.

OAuth scope: api:read.

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:read

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:read.

Path parameters

serverIdstringRequired

Unique workflow-MCP server identifier.

minLength: 1

Responses

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Tool registrations on this server, including inactive registrations.

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object

A bounded inventory of tool registrations on the workflow MCP server.

3 fields

dataarrayRequired

Items in the current page.

Schema details

Array itemobject

A tool registration on a workflow MCP server. Archived registrations are included with status: "inactive".

10 fields

idstringRequired

Unique tool identifier.

serverIdstringRequired

Server exposing this MCP tool.

workflowIdstringRequired

Workflow this tool executes.

toolNamestringRequired

Name an MCP client calls. Derived from the supplied name or the workflow name, normalized to the MCP tool-name grammar.

toolDescriptionvalueRequired

Description shown to MCP clients.

Schema details

Any of

Option 1string

Option 2null

mcpServerUrlstringRequired

Endpoint an MCP client connects to.

apiEndpointstringRequired

Sim execution endpoint this tool calls through.

createdAtstringRequired

ISO 8601 timestamp when the tool was created.

format: date-time

updatedAtstringRequired

ISO 8601 timestamp when the tool was last modified.

format: date-time

statusstringRequired

Whether MCP clients can call the tool. Undeploying its workflow archives the registration as inactive; it cannot be called and its name stays reserved. Redeploying the workflow makes it active again. Undeploying an inactive MCP tool permanently removes its registration.

enum: ["active","inactive"]

Additional properties are not allowed.

nextCursorvalueRequired

Always null. This list has no cursor or limit parameters; see the operation for inventory limits.

Schema details

Any of

Option 1string

Option 2null

truncatedbooleanRequired

Whether the tool limit left this inventory incomplete. The list is unpaginated and nextCursor remains null even when truncated; an incomplete inventory does not represent every registration.

Additional properties are not allowed.

Response example 1

json

{
  "data": [
    {
      "id": "wfmcptool_01J8ZK3QW4M6X2R9T7B5C0V3",
      "serverId": "wfmcp_01J8ZK3QW4M6X2R9T7B5C0V2",
      "workflowId": "3b1f7c92-8d4e-4a6b-9c0d-5e2f8a714b36",
      "toolName": "triage_ticket",
      "toolDescription": "Execute Ticket triage workflow",
      "mcpServerUrl": "https://www.sim.ai/api/mcp/serve/wfmcp_01J8ZK3QW4M6X2R9T7B5C0V2",
      "apiEndpoint": "https://www.sim.ai/api/v2/workflows/3b1f7c92-8d4e-4a6b-9c0d-5e2f8a714b36/execute",
      "createdAt": "2026-06-12T10:30:00.000Z",
      "updatedAt": "2026-06-12T10:30:00.000Z",
      "status": "active"
    }
  ],
  "nextCursor": null,
  "truncated": false
}

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))$

The request is invalid. This includes a query parameter sent with no value (?limit=, ?search=), which is rejected rather than read as zero, empty, or the parameter default — omit the parameter instead.

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object

Canonical error envelope returned by the public v2 API.

1 field

errorobjectRequired

Canonical error details.

3 fields

codestringRequired

Stable machine-readable error code.

messagestringRequired

Human-readable explanation of the error.

detailsvalue

Structured error context whose keys depend on the error. Actionable 403 responses use the V2ActionableForbiddenDetails shape; validation failures may return issue arrays instead.

Schema details

Any of

Option 1object

Machine-readable cause and optional context for an actionable 403 response.

1 field

codestringRequired

Stable cause code for an actionable 403 response.

enum: ["INSUFFICIENT_WORKSPACE_ROLE","PERSONAL_API_KEYS_DISABLED","WORKSPACE_KEY_OPERATION_NOT_PERMITTED","PRINCIPAL_KIND_NOT_PERMITTED","ORGANIZATION_MEMBERSHIP_REQUIRED","ORGANIZATION_ADMIN_REQUIRED","ENTERPRISE_PLAN_REQUIRED","SSO_DISABLED","SSO_DOMAIN_NOT_VERIFIED","SSO_PROVIDER_LIMIT_REACHED","ORGANIZATION_PLAN_REQUIRED","AUDIT_LOGS_DISABLED","ACCESS_REQUESTS_DISABLED","ACCESS_REQUEST_ORGANIZATION_REQUIRED","SKILL_EDITOR_ACCESS_REQUIRED","SECRET_ADMIN_ACCESS_REQUIRED","WORKSPACE_RESOURCE_LIMIT_REACHED","PUBLIC_SHARING_NOT_ALLOWED","CREDENTIAL_ADMIN_ACCESS_REQUIRED","MCP_SERVER_URL_NOT_ALLOWED","WORKSPACE_PLAN_CAPABILITY_REQUIRED","CHAT_AUTH_MODE_NOT_PERMITTED","CONNECTOR_MANAGED_RESOURCE_READ_ONLY","PERMISSION_GROUP_CAPABILITY_BLOCKED","INTEGRATION_NOT_ALLOWED","INSUFFICIENT_SCOPE","SCIM_MANAGED_MEMBERSHIP"]

Additional propertiesvalue

Additional context for this refusal.

Option 2value

Other structured context defined by the specific error.

Additional properties are not allowed.

Example

{
  "error": {
    "code": "BAD_REQUEST",
    "message": "Invalid request"
  }
}

The API credential is missing or invalid.

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object

Canonical error envelope returned by the public v2 API.

1 field

errorobjectRequired

Canonical error details.

3 fields

codestringRequired

Stable machine-readable error code.

messagestringRequired

Human-readable explanation of the error.

detailsvalue

Structured error context whose keys depend on the error. Actionable 403 responses use the V2ActionableForbiddenDetails shape; validation failures may return issue arrays instead.

Schema details

Any of

Option 1object

Machine-readable cause and optional context for an actionable 403 response.

1 field

codestringRequired

Stable cause code for an actionable 403 response.

enum: ["INSUFFICIENT_WORKSPACE_ROLE","PERSONAL_API_KEYS_DISABLED","WORKSPACE_KEY_OPERATION_NOT_PERMITTED","PRINCIPAL_KIND_NOT_PERMITTED","ORGANIZATION_MEMBERSHIP_REQUIRED","ORGANIZATION_ADMIN_REQUIRED","ENTERPRISE_PLAN_REQUIRED","SSO_DISABLED","SSO_DOMAIN_NOT_VERIFIED","SSO_PROVIDER_LIMIT_REACHED","ORGANIZATION_PLAN_REQUIRED","AUDIT_LOGS_DISABLED","ACCESS_REQUESTS_DISABLED","ACCESS_REQUEST_ORGANIZATION_REQUIRED","SKILL_EDITOR_ACCESS_REQUIRED","SECRET_ADMIN_ACCESS_REQUIRED","WORKSPACE_RESOURCE_LIMIT_REACHED","PUBLIC_SHARING_NOT_ALLOWED","CREDENTIAL_ADMIN_ACCESS_REQUIRED","MCP_SERVER_URL_NOT_ALLOWED","WORKSPACE_PLAN_CAPABILITY_REQUIRED","CHAT_AUTH_MODE_NOT_PERMITTED","CONNECTOR_MANAGED_RESOURCE_READ_ONLY","PERMISSION_GROUP_CAPABILITY_BLOCKED","INTEGRATION_NOT_ALLOWED","INSUFFICIENT_SCOPE","SCIM_MANAGED_MEMBERSHIP"]

Additional propertiesvalue

Additional context for this refusal.

Option 2value

Other structured context defined by the specific error.

Additional properties are not allowed.

Example

{
  "error": {
    "code": "UNAUTHORIZED",
    "message": "Authentication required"
  }
}

The caller lacks the rights this operation requires. When the cause is one a caller can act on, error.details.code names it. A resource in a workspace the caller cannot reach at all answers 404 instead, so absence and denial are indistinguishable.

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object

Canonical error envelope returned by the public v2 API.

1 field

errorobjectRequired

Canonical error details.

3 fields

codestringRequired

Stable machine-readable error code.

messagestringRequired

Human-readable explanation of the error.

detailsvalue

Structured error context whose keys depend on the error. Actionable 403 responses use the V2ActionableForbiddenDetails shape; validation failures may return issue arrays instead.

Schema details

Any of

Option 1object

Machine-readable cause and optional context for an actionable 403 response.

1 field

codestringRequired

Stable cause code for an actionable 403 response.

enum: ["INSUFFICIENT_WORKSPACE_ROLE","PERSONAL_API_KEYS_DISABLED","WORKSPACE_KEY_OPERATION_NOT_PERMITTED","PRINCIPAL_KIND_NOT_PERMITTED","ORGANIZATION_MEMBERSHIP_REQUIRED","ORGANIZATION_ADMIN_REQUIRED","ENTERPRISE_PLAN_REQUIRED","SSO_DISABLED","SSO_DOMAIN_NOT_VERIFIED","SSO_PROVIDER_LIMIT_REACHED","ORGANIZATION_PLAN_REQUIRED","AUDIT_LOGS_DISABLED","ACCESS_REQUESTS_DISABLED","ACCESS_REQUEST_ORGANIZATION_REQUIRED","SKILL_EDITOR_ACCESS_REQUIRED","SECRET_ADMIN_ACCESS_REQUIRED","WORKSPACE_RESOURCE_LIMIT_REACHED","PUBLIC_SHARING_NOT_ALLOWED","CREDENTIAL_ADMIN_ACCESS_REQUIRED","MCP_SERVER_URL_NOT_ALLOWED","WORKSPACE_PLAN_CAPABILITY_REQUIRED","CHAT_AUTH_MODE_NOT_PERMITTED","CONNECTOR_MANAGED_RESOURCE_READ_ONLY","PERMISSION_GROUP_CAPABILITY_BLOCKED","INTEGRATION_NOT_ALLOWED","INSUFFICIENT_SCOPE","SCIM_MANAGED_MEMBERSHIP"]

Additional propertiesvalue

Additional context for this refusal.

Option 2value

Other structured context defined by the specific error.

Additional properties are not allowed.

Example

{
  "error": {
    "code": "FORBIDDEN",
    "message": "Insufficient workspace permissions",
    "details": {
      "code": "INSUFFICIENT_WORKSPACE_ROLE"
    }
  }
}

The requested resource was not found.

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object

Canonical error envelope returned by the public v2 API.

1 field

errorobjectRequired

Canonical error details.

3 fields

codestringRequired

Stable machine-readable error code.

messagestringRequired

Human-readable explanation of the error.

detailsvalue

Structured error context whose keys depend on the error. Actionable 403 responses use the V2ActionableForbiddenDetails shape; validation failures may return issue arrays instead.

Schema details

Any of

Option 1object

Machine-readable cause and optional context for an actionable 403 response.

1 field

codestringRequired

Stable cause code for an actionable 403 response.

enum: ["INSUFFICIENT_WORKSPACE_ROLE","PERSONAL_API_KEYS_DISABLED","WORKSPACE_KEY_OPERATION_NOT_PERMITTED","PRINCIPAL_KIND_NOT_PERMITTED","ORGANIZATION_MEMBERSHIP_REQUIRED","ORGANIZATION_ADMIN_REQUIRED","ENTERPRISE_PLAN_REQUIRED","SSO_DISABLED","SSO_DOMAIN_NOT_VERIFIED","SSO_PROVIDER_LIMIT_REACHED","ORGANIZATION_PLAN_REQUIRED","AUDIT_LOGS_DISABLED","ACCESS_REQUESTS_DISABLED","ACCESS_REQUEST_ORGANIZATION_REQUIRED","SKILL_EDITOR_ACCESS_REQUIRED","SECRET_ADMIN_ACCESS_REQUIRED","WORKSPACE_RESOURCE_LIMIT_REACHED","PUBLIC_SHARING_NOT_ALLOWED","CREDENTIAL_ADMIN_ACCESS_REQUIRED","MCP_SERVER_URL_NOT_ALLOWED","WORKSPACE_PLAN_CAPABILITY_REQUIRED","CHAT_AUTH_MODE_NOT_PERMITTED","CONNECTOR_MANAGED_RESOURCE_READ_ONLY","PERMISSION_GROUP_CAPABILITY_BLOCKED","INTEGRATION_NOT_ALLOWED","INSUFFICIENT_SCOPE","SCIM_MANAGED_MEMBERSHIP"]

Additional propertiesvalue

Additional context for this refusal.

Option 2value

Other structured context defined by the specific error.

Additional properties are not allowed.

Example

{
  "error": {
    "code": "NOT_FOUND",
    "message": "Not found"
  }
}

The caller exceeded the request rate limit.

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object

Canonical error envelope returned by the public v2 API.

1 field

errorobjectRequired

Canonical error details.

3 fields

codestringRequired

Stable machine-readable error code.

messagestringRequired

Human-readable explanation of the error.

detailsvalue

Structured error context whose keys depend on the error. Actionable 403 responses use the V2ActionableForbiddenDetails shape; validation failures may return issue arrays instead.

Schema details

Any of

Option 1object

Machine-readable cause and optional context for an actionable 403 response.

1 field

codestringRequired

Stable cause code for an actionable 403 response.

enum: ["INSUFFICIENT_WORKSPACE_ROLE","PERSONAL_API_KEYS_DISABLED","WORKSPACE_KEY_OPERATION_NOT_PERMITTED","PRINCIPAL_KIND_NOT_PERMITTED","ORGANIZATION_MEMBERSHIP_REQUIRED","ORGANIZATION_ADMIN_REQUIRED","ENTERPRISE_PLAN_REQUIRED","SSO_DISABLED","SSO_DOMAIN_NOT_VERIFIED","SSO_PROVIDER_LIMIT_REACHED","ORGANIZATION_PLAN_REQUIRED","AUDIT_LOGS_DISABLED","ACCESS_REQUESTS_DISABLED","ACCESS_REQUEST_ORGANIZATION_REQUIRED","SKILL_EDITOR_ACCESS_REQUIRED","SECRET_ADMIN_ACCESS_REQUIRED","WORKSPACE_RESOURCE_LIMIT_REACHED","PUBLIC_SHARING_NOT_ALLOWED","CREDENTIAL_ADMIN_ACCESS_REQUIRED","MCP_SERVER_URL_NOT_ALLOWED","WORKSPACE_PLAN_CAPABILITY_REQUIRED","CHAT_AUTH_MODE_NOT_PERMITTED","CONNECTOR_MANAGED_RESOURCE_READ_ONLY","PERMISSION_GROUP_CAPABILITY_BLOCKED","INTEGRATION_NOT_ALLOWED","INSUFFICIENT_SCOPE","SCIM_MANAGED_MEMBERSHIP"]

Additional propertiesvalue

Additional context for this refusal.

Option 2value

Other structured context defined by the specific error.

Additional properties are not allowed.

Example

{
  "error": {
    "code": "RATE_LIMITED",
    "message": "API rate limit exceeded",
    "details": {
      "retryAfter": "2026-01-01T00:00:30.000Z"
    }
  }
}

Response headers

Retry-Afterinteger

Seconds to wait before retrying, sent on 429 and 503. Add jitter rather than retrying at exactly this offset.

minimum: 0
maximum: 9007199254740991

An unexpected server error occurred.

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object

Canonical error envelope returned by the public v2 API.

1 field

errorobjectRequired

Canonical error details.

3 fields

codestringRequired

Stable machine-readable error code.

messagestringRequired

Human-readable explanation of the error.

detailsvalue

Structured error context whose keys depend on the error. Actionable 403 responses use the V2ActionableForbiddenDetails shape; validation failures may return issue arrays instead.

Schema details

Any of

Option 1object

Machine-readable cause and optional context for an actionable 403 response.

1 field

codestringRequired

Stable cause code for an actionable 403 response.

enum: ["INSUFFICIENT_WORKSPACE_ROLE","PERSONAL_API_KEYS_DISABLED","WORKSPACE_KEY_OPERATION_NOT_PERMITTED","PRINCIPAL_KIND_NOT_PERMITTED","ORGANIZATION_MEMBERSHIP_REQUIRED","ORGANIZATION_ADMIN_REQUIRED","ENTERPRISE_PLAN_REQUIRED","SSO_DISABLED","SSO_DOMAIN_NOT_VERIFIED","SSO_PROVIDER_LIMIT_REACHED","ORGANIZATION_PLAN_REQUIRED","AUDIT_LOGS_DISABLED","ACCESS_REQUESTS_DISABLED","ACCESS_REQUEST_ORGANIZATION_REQUIRED","SKILL_EDITOR_ACCESS_REQUIRED","SECRET_ADMIN_ACCESS_REQUIRED","WORKSPACE_RESOURCE_LIMIT_REACHED","PUBLIC_SHARING_NOT_ALLOWED","CREDENTIAL_ADMIN_ACCESS_REQUIRED","MCP_SERVER_URL_NOT_ALLOWED","WORKSPACE_PLAN_CAPABILITY_REQUIRED","CHAT_AUTH_MODE_NOT_PERMITTED","CONNECTOR_MANAGED_RESOURCE_READ_ONLY","PERMISSION_GROUP_CAPABILITY_BLOCKED","INTEGRATION_NOT_ALLOWED","INSUFFICIENT_SCOPE","SCIM_MANAGED_MEMBERSHIP"]

Additional propertiesvalue

Additional context for this refusal.

Option 2value

Other structured context defined by the specific error.

Additional properties are not allowed.

Example

{
  "error": {
    "code": "INTERNAL_ERROR",
    "message": "Internal server error"
  }
}

A required service is temporarily unavailable. When present, Retry-After gives the minimum seconds to wait; add jitter before retrying. Check operation-specific guidance before repeating a change after an uncertain response.

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object

Canonical error envelope returned by the public v2 API.

1 field

errorobjectRequired

Canonical error details.

3 fields

codestringRequired

Stable machine-readable error code.

messagestringRequired

Human-readable explanation of the error.

detailsvalue

Structured error context whose keys depend on the error. Actionable 403 responses use the V2ActionableForbiddenDetails shape; validation failures may return issue arrays instead.

Schema details

Any of

Option 1object

Machine-readable cause and optional context for an actionable 403 response.

1 field

codestringRequired

Stable cause code for an actionable 403 response.

enum: ["INSUFFICIENT_WORKSPACE_ROLE","PERSONAL_API_KEYS_DISABLED","WORKSPACE_KEY_OPERATION_NOT_PERMITTED","PRINCIPAL_KIND_NOT_PERMITTED","ORGANIZATION_MEMBERSHIP_REQUIRED","ORGANIZATION_ADMIN_REQUIRED","ENTERPRISE_PLAN_REQUIRED","SSO_DISABLED","SSO_DOMAIN_NOT_VERIFIED","SSO_PROVIDER_LIMIT_REACHED","ORGANIZATION_PLAN_REQUIRED","AUDIT_LOGS_DISABLED","ACCESS_REQUESTS_DISABLED","ACCESS_REQUEST_ORGANIZATION_REQUIRED","SKILL_EDITOR_ACCESS_REQUIRED","SECRET_ADMIN_ACCESS_REQUIRED","WORKSPACE_RESOURCE_LIMIT_REACHED","PUBLIC_SHARING_NOT_ALLOWED","CREDENTIAL_ADMIN_ACCESS_REQUIRED","MCP_SERVER_URL_NOT_ALLOWED","WORKSPACE_PLAN_CAPABILITY_REQUIRED","CHAT_AUTH_MODE_NOT_PERMITTED","CONNECTOR_MANAGED_RESOURCE_READ_ONLY","PERMISSION_GROUP_CAPABILITY_BLOCKED","INTEGRATION_NOT_ALLOWED","INSUFFICIENT_SCOPE","SCIM_MANAGED_MEMBERSHIP"]

Additional propertiesvalue

Additional context for this refusal.

Option 2value

Other structured context defined by the specific error.

Additional properties are not allowed.

Example

{
  "error": {
    "code": "SERVICE_UNAVAILABLE",
    "message": "Service temporarily unavailable"
  }
}

Response headers

Retry-Afterinteger

Seconds to wait before retrying, sent on 429 and 503. Add jitter rather than retrying at exactly this offset.

minimum: 0
maximum: 9007199254740991

Authentication

Path parameters

Responses

200

Response example 1

Response headers

400

401

403

404

429

Response headers

500

503

Response headers