> ## Documentation Index > Fetch the complete documentation index at: https://openworklabs.com/docs/llms.txt > Use this file to discover all available pages before exploring further. # Register a new External MCP Connection for the org > Admin-only. Registers a third-party MCP server by name + URL and grants access (org-wide, teams, or members). Use GET /v1/mcp-connections/presets for known server URLs (Notion, Linear, Stripe, Sentry, Slack, Context7). For credentialMode per_member, each member connects their own account afterwards — share links.yourConnections from the response so teammates know where to sign in. For servers with pre-registered OAuth apps, whitelist links.oauthCallback. API-key and OAuth-client credentials cannot be created through the agent surface; use the dashboard. ## OpenAPI ````yaml /openapi.json post /v1/mcp-connections openapi: 3.1.0 info: title: Den API description: >- OpenAPI spec for the Den control plane API. Authentication: - Use `Authorization: Bearer ` for user-authenticated routes that require a Den session. - Use `x-api-key: ` for API-key-authenticated routes that accept organization API keys. - Public routes like health and documentation do not require authentication. Swagger tip: use the security schemes in the Authorize dialog to set either `bearerAuth` or `denApiKey` before trying protected endpoints. version: dev servers: [] security: [] tags: - name: System description: Service health and operational routes. - name: Organizations description: Top-level organization creation and context routes. - name: Invitations description: Invitation preview, acceptance, creation, and cancellation routes. - name: API Keys description: Organization API key management routes. - name: SCIM description: Organization SCIM connector management routes. - name: SSO description: Organization single sign-on connector management routes. - name: Members description: Organization member management routes. - name: Roles description: Organization custom role management routes. - name: Teams description: Organization team management routes. - name: Templates description: Organization shared template routes. - name: LLM Providers description: Organization LLM provider catalog, configuration, and access routes. - name: Skills description: Organization skill authoring and sharing routes. - name: Skill Hubs description: Organization skill hub management and access routes. - name: Workers description: Worker lifecycle, billing, and runtime routes. - name: Worker Runtime description: Worker runtime inspection and upgrade routes. - name: Worker Activity description: Worker heartbeat and activity reporting routes. - name: Telemetry description: Telemetry event ingestion and adoption analytics. - name: Admin description: Administrative reporting routes. - name: Users description: Current user and membership routes. - name: Bootstrap description: Agent-first provisional workspace setup routes. paths: /v1/mcp-connections: post: tags: - Capability Sources summary: Register a new External MCP Connection for the org description: >- Admin-only. Registers a third-party MCP server by name + URL and grants access (org-wide, teams, or members). Use GET /v1/mcp-connections/presets for known server URLs (Notion, Linear, Stripe, Sentry, Slack, Context7). For credentialMode per_member, each member connects their own account afterwards — share links.yourConnections from the response so teammates know where to sign in. For servers with pre-registered OAuth apps, whitelist links.oauthCallback. API-key and OAuth-client credentials cannot be created through the agent surface; use the dashboard. operationId: postV1McpConnections requestBody: required: true content: application/json: schema: type: object properties: name: type: string minLength: 1 maxLength: 255 url: type: string maxLength: 2048 format: uri authType: type: string enum: - oauth - apikey - none credentialMode: default: shared type: string enum: - shared - per_member apiKey: type: string minLength: 1 maxLength: 4096 oauthClient: type: object properties: clientId: type: string minLength: 1 maxLength: 512 clientSecret: type: string minLength: 1 maxLength: 4096 required: - clientId access: $ref: '#/components/schemas/ExternalMcpConnectionAccessInput' required: - name - url - authType responses: '200': description: Connection created. content: application/json: schema: $ref: '#/components/schemas/ExternalMcpConnectionCreatedResponse' '400': description: Invalid request. content: application/json: schema: $ref: '#/components/schemas/InvalidRequestError' '401': description: The caller must be signed in. content: application/json: schema: $ref: '#/components/schemas/UnauthorizedError' '403': description: Only workspace owners and admins can add MCP connections. content: application/json: schema: $ref: '#/components/schemas/ForbiddenError' '502': description: The upstream MCP server could not be reached. content: application/json: schema: $ref: >- #/components/schemas/ExternalMcpConnectionValidationFailedError components: schemas: ExternalMcpConnectionAccessInput: type: object properties: orgWide: default: false type: boolean memberIds: default: [] maxItems: 200 type: array items: type: string minLength: 1 teamIds: default: [] maxItems: 200 type: array items: type: string minLength: 1 ExternalMcpConnectionCreatedResponse: type: object properties: id: type: string name: type: string url: type: string authType: type: string enum: - oauth - apikey - none credentialMode: type: string enum: - shared - per_member connected: type: boolean connectedAt: anyOf: - type: string - type: 'null' updatedAt: type: string format: date-time pattern: >- ^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d(?::[0-5]\d(?:\.\d+)?)?(?:Z))$ connectedForMe: type: boolean needsReconnect: type: boolean missingFeatures: type: array items: type: string externalAccountId: anyOf: - type: string - type: 'null' grantedScopes: type: array items: type: string tenantId: anyOf: - type: string - type: 'null' requiredBy: type: array items: $ref: '#/components/schemas/ExternalMcpConnectionRequiredBy' identityManagedBy: type: array items: $ref: '#/components/schemas/ExternalMcpConnectionRequiredBy' access: anyOf: - $ref: '#/components/schemas/ExternalMcpConnectionAccessSummary' - type: 'null' oauthClientId: anyOf: - type: string - type: 'null' links: type: object properties: yourConnections: type: string oauthCallback: type: string required: - yourConnections - oauthCallback required: - id - name - url - authType - credentialMode - connected - connectedAt - connectedForMe - requiredBy - access - links InvalidRequestError: type: object properties: error: type: string const: invalid_request details: type: array items: type: object properties: message: type: string path: type: array items: anyOf: - type: string - type: number required: - message additionalProperties: {} required: - error - details UnauthorizedError: type: object properties: error: type: string const: unauthorized required: - error ForbiddenError: type: object properties: error: type: string enum: - forbidden - reauth reason: type: string message: type: string required: - error ExternalMcpConnectionValidationFailedError: type: object properties: error: type: string const: connection_validation_failed message: type: string diagnostic: $ref: '#/components/schemas/ExternalMcpDiagnostic' required: - error - message - diagnostic ExternalMcpConnectionRequiredBy: type: object properties: pluginId: type: string name: type: string required: - pluginId - name ExternalMcpConnectionAccessSummary: type: object properties: orgWide: type: boolean memberIds: type: array items: type: string teamIds: type: array items: type: string required: - orgWide - memberIds - teamIds ExternalMcpDiagnostic: type: object properties: referenceId: type: string phase: type: string enum: - CONFIGURATION - NETWORK_DNS - NETWORK_TCP - NETWORK_TLS - HTTP_ROUTING - AUTH_RESOURCE_DISCOVERY - AUTH_ISSUER_DISCOVERY - AUTH_CLIENT_REGISTRATION - AUTH_USER_OR_WORKLOAD - AUTH_TOKEN_ACQUISITION - AUTH_RESOURCE_VALIDATION - MCP_TRANSPORT - MCP_VERSION - MCP_INITIALIZE - MCP_INITIALIZED - MCP_TOOL_DISCOVERY - MCP_TOOL_EXECUTION - PROVIDER_AUTHORIZATION - PROVIDER_EXECUTION - CONTINUITY_REFRESH - CONTINUITY_SESSION - SHUTDOWN category: type: string code: type: string highestPassed: type: string enum: - configured - reachable - authorized - protocol_ready - catalog_ready - operation_ready retryable: type: boolean actionOwner: type: string enum: - openwork - network_admin - provider_admin - organization_admin - member operatorAction: type: string message: type: string httpStatus: type: integer minimum: 100 maximum: 599 operationPhase: type: string enum: - CONFIGURATION - NETWORK_DNS - NETWORK_TCP - NETWORK_TLS - HTTP_ROUTING - AUTH_RESOURCE_DISCOVERY - AUTH_ISSUER_DISCOVERY - AUTH_CLIENT_REGISTRATION - AUTH_USER_OR_WORKLOAD - AUTH_TOKEN_ACQUISITION - AUTH_RESOURCE_VALIDATION - MCP_TRANSPORT - MCP_VERSION - MCP_INITIALIZE - MCP_INITIALIZED - MCP_TOOL_DISCOVERY - MCP_TOOL_EXECUTION - PROVIDER_AUTHORIZATION - PROVIDER_EXECUTION - CONTINUITY_REFRESH - CONTINUITY_SESSION - SHUTDOWN outbound: type: object properties: origin: type: string pathHash: type: string required: - origin - pathHash providerRequestId: type: string jsonRpcCode: type: integer minimum: -9007199254740991 maximum: 9007199254740991 required: - referenceId - phase - category - code - highestPassed - retryable - actionOwner - operatorAction - message ````