> ## 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. # Resolve a free-form query to an MCP server > Admin-only, side-effect-free smart resolution for the add-connection flow. Accepts a URL, a bare host, or a product name ("vercel"), matches curated presets, probes bounded well-known endpoint candidates through the SSRF-guarded discovery fetch, and returns the winning URL with its requirements discovery. It performs no client registration, credential write, or connection creation. ## OpenAPI ````yaml /openapi.json post /v1/mcp-connections/resolve 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: 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/resolve: post: tags: - Authentication summary: Resolve a free-form query to an MCP server description: >- Admin-only, side-effect-free smart resolution for the add-connection flow. Accepts a URL, a bare host, or a product name ("vercel"), matches curated presets, probes bounded well-known endpoint candidates through the SSRF-guarded discovery fetch, and returns the winning URL with its requirements discovery. It performs no client registration, credential write, or connection creation. operationId: postV1McpConnectionsResolve requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/ExternalMcpResolveInput' responses: '200': description: Resolution result (not_found is a successful outcome). content: application/json: schema: $ref: '#/components/schemas/ExternalMcpResolveResult' '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 resolve MCP servers. content: application/json: schema: $ref: '#/components/schemas/ForbiddenError' components: schemas: ExternalMcpResolveInput: type: object properties: query: type: string minLength: 1 maxLength: 200 required: - query ExternalMcpResolveResult: type: object properties: resolution: type: string enum: - preset - discovered - not_found attempted: type: array items: type: string reason: type: string preset: $ref: '#/components/schemas/ExternalMcpPresetResponse' match: type: object properties: url: type: string suggestedName: type: string discovery: $ref: '#/components/schemas/ExternalMcpRequirementsDiscovery' required: - url - suggestedName - discovery required: - resolution - attempted 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 ExternalMcpPresetResponse: type: object properties: presetId: type: string displayName: type: string description: type: string url: type: string authType: type: string enum: - oauth - apikey - none requiresOAuthClient: type: boolean required: - presetId - displayName - description - url - authType ExternalMcpRequirementsDiscovery: type: object properties: status: type: string enum: - ready - manual_action_required - unsupported - unreachable server: type: object properties: url: type: string protocolVersion: type: string initialize: type: string enum: - succeeded - authentication_required - failed required: - url - initialize authentication: type: object properties: kind: type: string enum: - none - oauth - manual_bearer - unknown resource: type: string protectedResourceMetadataUrl: type: string authorizationServers: type: array items: type: object properties: issuer: type: string authorizationEndpoint: type: string tokenEndpoint: type: string registrationEndpoint: type: string clientIdMetadataDocumentSupported: type: boolean scopesSupported: type: array items: type: string grantTypesSupported: type: array items: type: string codeChallengeMethodsSupported: type: array items: type: string tokenEndpointAuthMethodsSupported: type: array items: type: string required: - issuer - clientIdMetadataDocumentSupported requiredScopes: type: array items: type: string recommendedScopes: type: array items: type: string refreshSupport: type: string enum: - supported - not_advertised - unknown availableRegistrationMethods: type: array items: type: string enum: - pre_registered - client_metadata - dynamic recommendedRegistrationMethod: type: string enum: - client_metadata - dynamic - pre_registered required: - kind - authorizationServers - requiredScopes - recommendedScopes - refreshSupport - availableRegistrationMethods - recommendedRegistrationMethod tools: type: object properties: visibility: type: string enum: - available_without_auth - requires_auth - unavailable count: type: integer minimum: 0 maximum: 9007199254740991 items: type: array items: type: object properties: name: type: string readOnlyHint: type: boolean destructiveHint: type: boolean openWorldHint: type: boolean required: - name required: - visibility manualRequirements: type: array items: type: object properties: code: type: string label: type: string reason: type: string required: type: boolean required: - code - label - reason - required warnings: type: array items: type: object properties: code: type: string message: type: string required: - code - message required: - status - server - authentication - tools - manualRequirements - warnings ````