# FastMCP TS

> The TypeScript framework for building MCP servers, clients, and apps.

## Docs

- [AnthropicSamplingAdapter](https://fastmcp-ts.docs.prefect.io/api/client/classes/AnthropicSamplingAdapter.md)
- [BearerAuth](https://fastmcp-ts.docs.prefect.io/api/client/classes/BearerAuth.md)
- [Client](https://fastmcp-ts.docs.prefect.io/api/client/classes/Client.md)
- [ClientCredentials](https://fastmcp-ts.docs.prefect.io/api/client/classes/ClientCredentials.md)
- [FileTokenStorage](https://fastmcp-ts.docs.prefect.io/api/client/classes/FileTokenStorage.md)
- [GenericSamplingAdapter](https://fastmcp-ts.docs.prefect.io/api/client/classes/GenericSamplingAdapter.md)
- [GoogleSamplingAdapter](https://fastmcp-ts.docs.prefect.io/api/client/classes/GoogleSamplingAdapter.md)
- [InMemoryStore](https://fastmcp-ts.docs.prefect.io/api/client/classes/InMemoryStore.md)
- [MultiServerClient](https://fastmcp-ts.docs.prefect.io/api/client/classes/MultiServerClient.md)
- [OAuth](https://fastmcp-ts.docs.prefect.io/api/client/classes/OAuth.md)
- [OpenAISamplingAdapter](https://fastmcp-ts.docs.prefect.io/api/client/classes/OpenAISamplingAdapter.md)
- [StdioTransport](https://fastmcp-ts.docs.prefect.io/api/client/classes/StdioTransport.md)
- [ToolCallError](https://fastmcp-ts.docs.prefect.io/api/client/classes/ToolCallError.md)
- [defaultLogHandler](https://fastmcp-ts.docs.prefect.io/api/client/functions/defaultLogHandler.md)
- [defaultProgressHandler](https://fastmcp-ts.docs.prefect.io/api/client/functions/defaultProgressHandler.md)
- [toResult](https://fastmcp-ts.docs.prefect.io/api/client/functions/toResult.md)
- [client](https://fastmcp-ts.docs.prefect.io/api/client/index.md)
- [CallToolOptions](https://fastmcp-ts.docs.prefect.io/api/client/interfaces/CallToolOptions.md)
- [ClientCredentialsOptions](https://fastmcp-ts.docs.prefect.io/api/client/interfaces/ClientCredentialsOptions.md)
- [ClientDefaultOptions](https://fastmcp-ts.docs.prefect.io/api/client/interfaces/ClientDefaultOptions.md)
- [ClientHandlers](https://fastmcp-ts.docs.prefect.io/api/client/interfaces/ClientHandlers.md)
- [ClientOptions](https://fastmcp-ts.docs.prefect.io/api/client/interfaces/ClientOptions.md)
- [GenericCompletionParams](https://fastmcp-ts.docs.prefect.io/api/client/interfaces/GenericCompletionParams.md)
- [IClient](https://fastmcp-ts.docs.prefect.io/api/client/interfaces/IClient.md)
- [IPromptsClient](https://fastmcp-ts.docs.prefect.io/api/client/interfaces/IPromptsClient.md)
- [IResourcesClient](https://fastmcp-ts.docs.prefect.io/api/client/interfaces/IResourcesClient.md)
- [IToolsClient](https://fastmcp-ts.docs.prefect.io/api/client/interfaces/IToolsClient.md)
- [McpServerLike](https://fastmcp-ts.docs.prefect.io/api/client/interfaces/McpServerLike.md)
- [MultiServerOptions](https://fastmcp-ts.docs.prefect.io/api/client/interfaces/MultiServerOptions.md)
- [OAuthOptions](https://fastmcp-ts.docs.prefect.io/api/client/interfaces/OAuthOptions.md)
- [RequestOptions](https://fastmcp-ts.docs.prefect.io/api/client/interfaces/RequestOptions.md)
- [SamplingAdapter](https://fastmcp-ts.docs.prefect.io/api/client/interfaces/SamplingAdapter.md)
- [SamplingAdapterOptions](https://fastmcp-ts.docs.prefect.io/api/client/interfaces/SamplingAdapterOptions.md)
- [AnySamplingResult](https://fastmcp-ts.docs.prefect.io/api/client/type-aliases/AnySamplingResult.md)
- [CallToolResult](https://fastmcp-ts.docs.prefect.io/api/client/type-aliases/CallToolResult.md)
- [ClientTransportInput](https://fastmcp-ts.docs.prefect.io/api/client/type-aliases/ClientTransportInput.md)
- [CompletionResult](https://fastmcp-ts.docs.prefect.io/api/client/type-aliases/CompletionResult.md)
- [ElicitationHandler](https://fastmcp-ts.docs.prefect.io/api/client/type-aliases/ElicitationHandler.md)
- [GenericCompletionFn](https://fastmcp-ts.docs.prefect.io/api/client/type-aliases/GenericCompletionFn.md)
- [KeyValueStore](https://fastmcp-ts.docs.prefect.io/api/client/type-aliases/KeyValueStore.md)
- [ListChangedHandler](https://fastmcp-ts.docs.prefect.io/api/client/type-aliases/ListChangedHandler.md)
- [LogHandler](https://fastmcp-ts.docs.prefect.io/api/client/type-aliases/LogHandler.md)
- [LogMessage](https://fastmcp-ts.docs.prefect.io/api/client/type-aliases/LogMessage.md)
- [McpConfig](https://fastmcp-ts.docs.prefect.io/api/client/type-aliases/McpConfig.md)
- [McpServerEntry](https://fastmcp-ts.docs.prefect.io/api/client/type-aliases/McpServerEntry.md)
- [McpServerValue](https://fastmcp-ts.docs.prefect.io/api/client/type-aliases/McpServerValue.md)
- [ModelSelector](https://fastmcp-ts.docs.prefect.io/api/client/type-aliases/ModelSelector.md)
- [OAuthToken](https://fastmcp-ts.docs.prefect.io/api/client/type-aliases/OAuthToken.md)
- [OnTokenCallback](https://fastmcp-ts.docs.prefect.io/api/client/type-aliases/OnTokenCallback.md)
- [ProgressHandler](https://fastmcp-ts.docs.prefect.io/api/client/type-aliases/ProgressHandler.md)
- [ResourceUpdateHandler](https://fastmcp-ts.docs.prefect.io/api/client/type-aliases/ResourceUpdateHandler.md)
- [Result](https://fastmcp-ts.docs.prefect.io/api/client/type-aliases/Result.md)
- [RootInput](https://fastmcp-ts.docs.prefect.io/api/client/type-aliases/RootInput.md)
- [RootsValue](https://fastmcp-ts.docs.prefect.io/api/client/type-aliases/RootsValue.md)
- [SamplingHandler](https://fastmcp-ts.docs.prefect.io/api/client/type-aliases/SamplingHandler.md)
- [Approval](https://fastmcp-ts.docs.prefect.io/api/server/classes/Approval.md)
- [AuthorizationError](https://fastmcp-ts.docs.prefect.io/api/server/classes/AuthorizationError.md)
- [CachingMiddleware](https://fastmcp-ts.docs.prefect.io/api/server/classes/CachingMiddleware.md)
- [CancellationMiddleware](https://fastmcp-ts.docs.prefect.io/api/server/classes/CancellationMiddleware.md)
- [Choice](https://fastmcp-ts.docs.prefect.io/api/server/classes/Choice.md)
- [ErrorNormalizationMiddleware](https://fastmcp-ts.docs.prefect.io/api/server/classes/ErrorNormalizationMiddleware.md)
- [FastMCP](https://fastmcp-ts.docs.prefect.io/api/server/classes/FastMCP.md)
- [FastMCPApp](https://fastmcp-ts.docs.prefect.io/api/server/classes/FastMCPApp.md)
- [File](https://fastmcp-ts.docs.prefect.io/api/server/classes/File.md)
- [FileUpload](https://fastmcp-ts.docs.prefect.io/api/server/classes/FileUpload.md)
- [FilterTransform](https://fastmcp-ts.docs.prefect.io/api/server/classes/FilterTransform.md)
- [FormInput](https://fastmcp-ts.docs.prefect.io/api/server/classes/FormInput.md)
- [GenerativeUI](https://fastmcp-ts.docs.prefect.io/api/server/classes/GenerativeUI.md)
- [Image](https://fastmcp-ts.docs.prefect.io/api/server/classes/Image.md)
- [LoggingMiddleware](https://fastmcp-ts.docs.prefect.io/api/server/classes/LoggingMiddleware.md)
- [NamespaceTransform](https://fastmcp-ts.docs.prefect.io/api/server/classes/NamespaceTransform.md)
- [PromptResult](https://fastmcp-ts.docs.prefect.io/api/server/classes/PromptResult.md)
- [PromptsAsTools](https://fastmcp-ts.docs.prefect.io/api/server/classes/PromptsAsTools.md)
- [RateLimitingMiddleware](https://fastmcp-ts.docs.prefect.io/api/server/classes/RateLimitingMiddleware.md)
- [ResourceResult](https://fastmcp-ts.docs.prefect.io/api/server/classes/ResourceResult.md)
- [ResourcesAsTools](https://fastmcp-ts.docs.prefect.io/api/server/classes/ResourcesAsTools.md)
- [SizeLimitingMiddleware](https://fastmcp-ts.docs.prefect.io/api/server/classes/SizeLimitingMiddleware.md)
- [ToolResult](https://fastmcp-ts.docs.prefect.io/api/server/classes/ToolResult.md)
- [VersionFilter](https://fastmcp-ts.docs.prefect.io/api/server/classes/VersionFilter.md)
- [Area](https://fastmcp-ts.docs.prefect.io/api/server/functions/Area.md)
- [Badge](https://fastmcp-ts.docs.prefect.io/api/server/functions/Badge.md)
- [Bar](https://fastmcp-ts.docs.prefect.io/api/server/functions/Bar.md)
- [Button](https://fastmcp-ts.docs.prefect.io/api/server/functions/Button.md)
- [Column](https://fastmcp-ts.docs.prefect.io/api/server/functions/Column.md)
- [ForEach](https://fastmcp-ts.docs.prefect.io/api/server/functions/ForEach.md)
- [Grid](https://fastmcp-ts.docs.prefect.io/api/server/functions/Grid.md)
- [If](https://fastmcp-ts.docs.prefect.io/api/server/functions/If.md)
- [Input](https://fastmcp-ts.docs.prefect.io/api/server/functions/Input.md)
- [Line](https://fastmcp-ts.docs.prefect.io/api/server/functions/Line.md)
- [Pie](https://fastmcp-ts.docs.prefect.io/api/server/functions/Pie.md)
- [Row](https://fastmcp-ts.docs.prefect.io/api/server/functions/Row.md)
- [Rx](https://fastmcp-ts.docs.prefect.io/api/server/functions/Rx.md)
- [Select](https://fastmcp-ts.docs.prefect.io/api/server/functions/Select.md)
- [Table](https://fastmcp-ts.docs.prefect.io/api/server/functions/Table.md)
- [Text](https://fastmcp-ts.docs.prefect.io/api/server/functions/Text.md)
- [actionRef](https://fastmcp-ts.docs.prefect.io/api/server/functions/actionRef.md)
- [createProxy](https://fastmcp-ts.docs.prefect.io/api/server/functions/createProxy.md)
- [debugTokenVerifier](https://fastmcp-ts.docs.prefect.io/api/server/functions/debugTokenVerifier.md)
- [introspectionVerifier](https://fastmcp-ts.docs.prefect.io/api/server/functions/introspectionVerifier.md)
- [jwtVerifier](https://fastmcp-ts.docs.prefect.io/api/server/functions/jwtVerifier.md)
- [multiAuth](https://fastmcp-ts.docs.prefect.io/api/server/functions/multiAuth.md)
- [oauthProvider](https://fastmcp-ts.docs.prefect.io/api/server/functions/oauthProvider.md)
- [oauthProxy](https://fastmcp-ts.docs.prefect.io/api/server/functions/oauthProxy.md)
- [redescribeTool](https://fastmcp-ts.docs.prefect.io/api/server/functions/redescribeTool.md)
- [renameTool](https://fastmcp-ts.docs.prefect.io/api/server/functions/renameTool.md)
- [requireScopes](https://fastmcp-ts.docs.prefect.io/api/server/functions/requireScopes.md)
- [staticTokenVerifier](https://fastmcp-ts.docs.prefect.io/api/server/functions/staticTokenVerifier.md)
- [server](https://fastmcp-ts.docs.prefect.io/api/server/index.md)
- [AccessToken](https://fastmcp-ts.docs.prefect.io/api/server/interfaces/AccessToken.md)
- [BackendToolConfig](https://fastmcp-ts.docs.prefect.io/api/server/interfaces/BackendToolConfig.md)
- [BrowserPermissions](https://fastmcp-ts.docs.prefect.io/api/server/interfaces/BrowserPermissions.md)
- [CatalogEntry](https://fastmcp-ts.docs.prefect.io/api/server/interfaces/CatalogEntry.md)
- [Component](https://fastmcp-ts.docs.prefect.io/api/server/interfaces/Component.md)
- [CspPolicy](https://fastmcp-ts.docs.prefect.io/api/server/interfaces/CspPolicy.md)
- [ElicitationResult](https://fastmcp-ts.docs.prefect.io/api/server/interfaces/ElicitationResult.md)
- [ElicitationSchema](https://fastmcp-ts.docs.prefect.io/api/server/interfaces/ElicitationSchema.md)
- [EntrypointConfig](https://fastmcp-ts.docs.prefect.io/api/server/interfaces/EntrypointConfig.md)
- [FastMCPAppOptions](https://fastmcp-ts.docs.prefect.io/api/server/interfaces/FastMCPAppOptions.md)
- [FastMCPOptions](https://fastmcp-ts.docs.prefect.io/api/server/interfaces/FastMCPOptions.md)
- [FileHandle](https://fastmcp-ts.docs.prefect.io/api/server/interfaces/FileHandle.md)
- [FileStorageAdapter](https://fastmcp-ts.docs.prefect.io/api/server/interfaces/FileStorageAdapter.md)
- [FileUploadOptions](https://fastmcp-ts.docs.prefect.io/api/server/interfaces/FileUploadOptions.md)
- [FormInputOptions](https://fastmcp-ts.docs.prefect.io/api/server/interfaces/FormInputOptions.md)
- [IfNode](https://fastmcp-ts.docs.prefect.io/api/server/interfaces/IfNode.md)
- [McpContext](https://fastmcp-ts.docs.prefect.io/api/server/interfaces/McpContext.md)
- [Middleware](https://fastmcp-ts.docs.prefect.io/api/server/interfaces/Middleware.md)
- [MiddlewareContext](https://fastmcp-ts.docs.prefect.io/api/server/interfaces/MiddlewareContext.md)
- [OAuthConfig](https://fastmcp-ts.docs.prefect.io/api/server/interfaces/OAuthConfig.md)
- [OAuthProviderOptions](https://fastmcp-ts.docs.prefect.io/api/server/interfaces/OAuthProviderOptions.md)
- [OAuthProxyOptions](https://fastmcp-ts.docs.prefect.io/api/server/interfaces/OAuthProxyOptions.md)
- [PromptArgument](https://fastmcp-ts.docs.prefect.io/api/server/interfaces/PromptArgument.md)
- [PromptConfig](https://fastmcp-ts.docs.prefect.io/api/server/interfaces/PromptConfig.md)
- [PromptMessage](https://fastmcp-ts.docs.prefect.io/api/server/interfaces/PromptMessage.md)
- [PromptView](https://fastmcp-ts.docs.prefect.io/api/server/interfaces/PromptView.md)
- [ResourceAnnotations](https://fastmcp-ts.docs.prefect.io/api/server/interfaces/ResourceAnnotations.md)
- [ResourceConfig](https://fastmcp-ts.docs.prefect.io/api/server/interfaces/ResourceConfig.md)
- [ResourceUiMeta](https://fastmcp-ts.docs.prefect.io/api/server/interfaces/ResourceUiMeta.md)
- [ResourceView](https://fastmcp-ts.docs.prefect.io/api/server/interfaces/ResourceView.md)
- [Root](https://fastmcp-ts.docs.prefect.io/api/server/interfaces/Root.md)
- [RunOptions](https://fastmcp-ts.docs.prefect.io/api/server/interfaces/RunOptions.md)
- [SamplingMessage](https://fastmcp-ts.docs.prefect.io/api/server/interfaces/SamplingMessage.md)
- [SamplingParams](https://fastmcp-ts.docs.prefect.io/api/server/interfaces/SamplingParams.md)
- [SamplingResult](https://fastmcp-ts.docs.prefect.io/api/server/interfaces/SamplingResult.md)
- [ServerAddress](https://fastmcp-ts.docs.prefect.io/api/server/interfaces/ServerAddress.md)
- [SynthesizedTool](https://fastmcp-ts.docs.prefect.io/api/server/interfaces/SynthesizedTool.md)
- [TokenVerifier](https://fastmcp-ts.docs.prefect.io/api/server/interfaces/TokenVerifier.md)
- [ToolConfig](https://fastmcp-ts.docs.prefect.io/api/server/interfaces/ToolConfig.md)
- [ToolView](https://fastmcp-ts.docs.prefect.io/api/server/interfaces/ToolView.md)
- [Transform](https://fastmcp-ts.docs.prefect.io/api/server/interfaces/Transform.md)
- [UiToolMeta](https://fastmcp-ts.docs.prefect.io/api/server/interfaces/UiToolMeta.md)
- [AuthCheck](https://fastmcp-ts.docs.prefect.io/api/server/type-aliases/AuthCheck.md)
- [CacheKeyFn](https://fastmcp-ts.docs.prefect.io/api/server/type-aliases/CacheKeyFn.md)
- [LogLevel](https://fastmcp-ts.docs.prefect.io/api/server/type-aliases/LogLevel.md)
- [Next](https://fastmcp-ts.docs.prefect.io/api/server/type-aliases/Next.md)
- [PromptContent](https://fastmcp-ts.docs.prefect.io/api/server/type-aliases/PromptContent.md)
- [ProxyTransport](https://fastmcp-ts.docs.prefect.io/api/server/type-aliases/ProxyTransport.md)
- [Visibility](https://fastmcp-ts.docs.prefect.io/api/server/type-aliases/Visibility.md)
- [Components](https://fastmcp-ts.docs.prefect.io/apps/components.md): The server-side component library for building app UIs
- [Generative UI](https://fastmcp-ts.docs.prefect.io/apps/generative-ui.md): Let the LLM compose component trees at runtime
- [Apps overview](https://fastmcp-ts.docs.prefect.io/apps/overview.md): Interactive UIs rendered directly in MCP host conversations
- [Built-in providers](https://fastmcp-ts.docs.prefect.io/apps/providers.md): Ready-to-mount interactive primitives: approval, choice, file upload, forms
- [CLI](https://fastmcp-ts.docs.prefect.io/cli.md): Run, inspect, call, and install MCP servers from the command line
- [Client authentication](https://fastmcp-ts.docs.prefect.io/clients/auth.md): Bearer tokens, OAuth, and client credentials
- [Client basics](https://fastmcp-ts.docs.prefect.io/clients/client.md): Connect to MCP servers, call tools, and manage connection lifecycle
- [Handlers](https://fastmcp-ts.docs.prefect.io/clients/handlers.md): React to server logs, progress, elicitation, and list changes
- [Multi-server](https://fastmcp-ts.docs.prefect.io/clients/multi-server.md): One client, many servers, automatic namespacing
- [Sampling adapters](https://fastmcp-ts.docs.prefect.io/clients/sampling.md): Forward server sampling requests to Anthropic, OpenAI, or Google
- [Transports](https://fastmcp-ts.docs.prefect.io/clients/transports.md): Connect over HTTP, stdio subprocesses, or in-process servers
- [Welcome to FastMCP TypeScript](https://fastmcp-ts.docs.prefect.io/index.md): The TypeScript framework for building MCP servers, clients, and apps
- [Installation](https://fastmcp-ts.docs.prefect.io/installation.md): Install FastMCP TypeScript and its optional peer dependencies
- [Quickstart](https://fastmcp-ts.docs.prefect.io/quickstart.md): Build, run, and call your first MCP server
- [Authorization](https://fastmcp-ts.docs.prefect.io/servers/auth/authorization.md): Scopes, per-component checks, and combining auth strategies
- [OAuth](https://fastmcp-ts.docs.prefect.io/servers/auth/oauth.md): Act as an OAuth provider or proxy an upstream identity provider
- [Authentication overview](https://fastmcp-ts.docs.prefect.io/servers/auth/overview.md): How FastMCP servers verify callers and protect components
- [Token verification](https://fastmcp-ts.docs.prefect.io/servers/auth/token-verification.md): Verify bearer tokens with JWKS, introspection, or static tokens
- [Composition](https://fastmcp-ts.docs.prefect.io/servers/composition.md): Mount child servers and proxy remote ones into a single gateway
- [Context](https://fastmcp-ts.docs.prefect.io/servers/context.md): Logging, progress, sampling, elicitation, and session state from inside handlers
- [Middleware](https://fastmcp-ts.docs.prefect.io/servers/middleware.md): Intercept and instrument every request with built-in or custom middleware
- [Prompts](https://fastmcp-ts.docs.prefect.io/servers/prompts.md): Reusable message templates with validated arguments
- [Resources](https://fastmcp-ts.docs.prefect.io/servers/resources.md): Expose data to clients via static URIs and RFC 6570 URI templates
- [Running your server](https://fastmcp-ts.docs.prefect.io/servers/running.md): Transports, ports, and environment-driven configuration
- [Tasks](https://fastmcp-ts.docs.prefect.io/servers/tasks.md): Long-running tools with background execution and client polling
- [Tools](https://fastmcp-ts.docs.prefect.io/servers/tools.md): Turn TypeScript functions into MCP tools with schema validation and automatic result conversion
- [Transforms](https://fastmcp-ts.docs.prefect.io/servers/transforms.md): View-only projections over the components your server advertises