Convert to MCP ReadResourceResult. Args: uri: The URI of the resource (required by MCP types) Returns: MCP R

Update an MCP configuration file from a server object, preserving existing fields. This is used for updating the mcpServer configurations of thir

Verify WorkOS OAuth token by calling userinfo endpoint.

Return a new provider with this transform applied (immutable). Unlike add_transform() which mutates this provider, wrap_transform() r

Get the current access token for the authenticated user. This dependency provides access to the AccessToken for the current authenticated req

Get the current HTTP request headers. This dependency provides access to the HTTP headers for the current request, including the authorizatio

Get the current HTTP request. This dependency provides access to the Starlette Request object for the current HTTP request. Only available wh

Get the current Docket Worker instance managed by FastMCP. This dependency provides access to the Worker instance that FastMCP automatically

Exchange the user's Entra token for a downstream API token via OBO. This dependency performs a Microsoft Entra On-Behalf-Of (OBO) token exchange,

Get the current FastMCP Context, or None when no context is active.

Enter the context manager and set this context as the current context.

Initialize OAuth client provider for an MCP server. Args: mcp_url: Full URL to the MCP endpoint (e.g. "http://host/mcp/s

Create ResourceResult. Args: contents: String, bytes, or list of ResourceContent objects. meta: Optional metadata abo

Initialize AWS Cognito OAuth provider. Args: user_pool_id: Your Cognito User Pool ID (e.g., "eu-central-1_XXXXXXXXX")

Initialize GitHub OAuth provider. Args: client_id: GitHub OAuth app client ID (e.g., "Ov23li...") client_secret: GitH

Initialize Azure OAuth provider. Args: client_id: Azure application (client) ID from your App registration client_sec

Initialize Clerk OAuth provider. Args: domain: Clerk instance domain (e.g., "saving-primate-16.clerk.accounts.dev").

Initialize Google OAuth provider. Args: client_id: Google OAuth client ID (e.g., "123456789.apps.googleusercontent.com")

Initialize a JWTVerifier configured to validate JWTs using either a static key or a JWKS endpoint. Parameters: public_ke

Initialize Discord OAuth provider. Args: client_id: Discord OAuth client ID (e.g., "123456789") client_secret: Discor

Initialize Hugging Face OAuth provider. Args: client_id: Hugging Face OAuth app client ID. Public apps and CIMD c

Create Message with automatic serialization. Args: content: The message content. str passes through directly.

Apply transformation to a single parameter. This method handles the transformation of a single argument according to the specified tr

Override title/description on the wrapped ``value`` property in-place.

Render category filter, quantity adjustment, and delete controls.

Render the add-item form using Form.from_model().

Build CSP from the generative renderer's declared requirements.

Build facets for rich text formatting, including auto-detected URLs.

Render the main DataTable with all current items.

Build Prefab picker page: dropdown selector with per-tool forms.

Build quote embed.

Build quote embed with images.

Build reply reference.

Build a card for a single request inside a ForEach context.

Build all component management routes.

Render the search form with ForEach results.

Create a minimal FastMCP server for integration tests.

Create a minimal FastMCP server for integration tests.

Build URL by substituting path parameters in the template. Args: path_template: OpenAPI path template (e.g., "/users/{id

Serialize a ``CallToolResult`` to a JSON-safe dict.

Call a tool for background execution (SEP-1686). Returns a ToolTask object that handles both background and immediate execution. If t

Convert OpenAI response to CreateMessageResultWithTools.

Return list of broken fastmcp import descriptions.

Raise helpful TypeErrors for kwargs removed in v3.

Return error description if syntax is invalid, else None.

Check that versioned and unversioned components aren't mixed. LocalProvider enforces a simple rule: for any given name/URI, all regis

Clamp the logger to a minimum and maximum level. If min_level is provided, messages logged at a lower level than `min_level` will have their leve

Remove a specific consent binding entry after successful callback.

Clear signature-related caches for a function. Called after modifying a function's signature to ensure downstream code sees the updated signa

Coerce version to string, accepting int, float, or str. Raises TypeError for non-scalar types (list, dict, set, etc.). Raises ValueError if v

List API provider directories (e.g. 'github.com', 'amazonaws.com').

Compute the dotted module name for a file within a package. Args: file_path: Path to the Python file. package_root: Root director

Check if *tp* is or contains bytes, recursing through unions and Annotated.

Check if *tp* is or contains a prefab type, recursing through unions and Annotated.

Convert string arguments to expected types based on function signature.

Convert string parameter location to our ParameterLocation type.

Convert MCP tool_choice to OpenAI format.

Convert an MCP Tool to Google GenAI format. We prune ``title`` fields from the schema because Gemini 2.5 Flash produces ``MALFORMED_FUNCTION_

Convert MCP tools to OpenAI tool format.

Create list/set type with optional constraints.

Create enhanced error response with content negotiation. Args: request: The original request client_id: The unregiste

Create enum type from list of values.

Create schema and forwarding function that encapsulates all transformation logic. This method builds a new JSON schema for the transformed to

Create numeric type with optional constraints.

Create and register an OpenAPIResource.

Create and register an OpenAPIResourceTemplate.

Create and register an OpenAPITool.

Create underlying transport, proxy client, and proxy server for a single backend. The ProxyClient is connected via the AsyncExitStack *before

Create Pydantic BaseModel from object schema with additionalProperties.

Create string type with optional constraints.