593 pages for theme.

Progress Model Context Protocol · in the page specification/2025-03-26/basic/utilities/progress …means, but **MUST** be unique across all active requests. ```json theme={null} { "jsonrpc": "2.0", "id": 1, "method": "some_method", "params": { "_meta": { "progressToken": "abc1… Roots Model Context Protocol · in the page specification/2025-03-26/client/roots …specification/2025-03-26/basic/lifecycle.md#initialization): ```json theme={null} { "capabilities": { "roots": { "listChanged": true } } } ``` `listChanged` indicates whether the c… Sampling Model Context Protocol · in the page specification/2025-03-26/client/sampling …specification/2025-03-26/basic/lifecycle.md#initialization): ```json theme={null} { "capabilities": { "sampling": {} } } ``` ## Protocol Messages ### Creating Messages To request a languag… Prompts Model Context Protocol · in the page specification/2025-03-26/server/prompts …specification/2025-03-26/basic/lifecycle.md#initialization): ```json theme={null} { "capabilities": { "prompts": { "listChanged": true } } } ``` `listChanged` indicates whether the… Resources Model Context Protocol · in the page specification/2025-03-26/server/resources …pport resources **MUST** declare the `resources` capability: ```json theme={null} { "capabilities": { "resources": { "subscribe": true, "listChanged": true } } } ``` The capa… Tools Model Context Protocol · in the page specification/2025-03-26/server/tools …that support tools **MUST** declare the `tools` capability: ```json theme={null} { "capabilities": { "tools": { "listChanged": true } } } ``` `listChanged` indicates whether the s… Completion Model Context Protocol · in the page specification/2025-03-26/server/utilities/completion …t completions **MUST** declare the `completions` capability: ```json theme={null} { "capabilities": { "completions": {} } } ``` ## Protocol Messages ### Requesting Completions To get compl… Logging Model Context Protocol · in the page specification/2025-03-26/server/utilities/logging …age notifications **MUST** declare the `logging` capability: ```json theme={null} { "capabilities": { "logging": {} } } ``` ## Log Levels The protocol follows the standard syslog severity l… Pagination Model Context Protocol · in the page specification/2025-03-26/server/utilities/pagination …sults * An optional `nextCursor` field if more results exist ```json theme={null} { "jsonrpc": "2.0", "id": "123", "result": { "resources": [...], "nextCursor": "eyJwYWdlIjogM30=" } }… Architecture Model Context Protocol · in the page specification/2025-06-18/architecture/index …dination between clients and servers. ## Core Components ```mermaid theme={null} graph LR subgraph "Application Host Process" H[Host] C1[Client 1] C2[Client 2] C3… Authorization Model Context Protocol · in the page specification/2025-06-18/basic/authorization …Diagram The following diagram outlines an example flow: ```mermaid theme={null} sequenceDiagram participant C as Client participant M as MCP Server (Resource Server) participant A as Au… Overview Model Context Protocol · in the page specification/2025-06-18/basic/index …to the server or vice versa, to initiate an operation. ```typescript theme={null} { jsonrpc: "2.0"; id: string | number; method: string; params?: { [key: string]: unknown; }; } ``` * R… Lifecycle Model Context Protocol · in the page specification/2025-06-18/basic/lifecycle …n 3. **Shutdown**: Graceful termination of the connection ```mermaid theme={null} sequenceDiagram participant Client participant Server Note over Client,Server: Initialization Phase… Transports Model Context Protocol · in the page specification/2025-06-18/basic/transports …o the server's `stdin` that is not a valid MCP message. ```mermaid theme={null} sequenceDiagram participant Client participant Server Process Client->>+Server Process: Launch subproces… Cancellation Model Context Protocol · in the page specification/2025-06-18/basic/utilities/cancellation …* An optional reason string that can be logged or displayed ```json theme={null} { "jsonrpc": "2.0", "method": "notifications/cancelled", "params": { "requestId": "123", "reason": "Use… Ping Model Context Protocol · in the page specification/2025-06-18/basic/utilities/ping …g request is a standard JSON-RPC request with no parameters: ```json theme={null} { "jsonrpc": "2.0", "id": "123", "method": "ping" } ``` ## Behavior Requirements 1. The receiver **MUST** res… Progress Model Context Protocol · in the page specification/2025-06-18/basic/utilities/progress …means, but **MUST** be unique across all active requests. ```json theme={null} { "jsonrpc": "2.0", "id": 1, "method": "some_method", "params": { "_meta": { "progressToken": "abc1… Elicitation Model Context Protocol · in the page specification/2025-06-18/client/elicitation …specification/2025-06-18/basic/lifecycle.md#initialization): ```json theme={null} { "capabilities": { "elicitation": {} } } ``` ## Protocol Messages ### Creating Elicitation Requests To re… Roots Model Context Protocol · in the page specification/2025-06-18/client/roots …specification/2025-06-18/basic/lifecycle.md#initialization): ```json theme={null} { "capabilities": { "roots": { "listChanged": true } } } ``` `listChanged` indicates whether the c… Sampling Model Context Protocol · in the page specification/2025-06-18/client/sampling …specification/2025-06-18/basic/lifecycle.md#initialization): ```json theme={null} { "capabilities": { "sampling": {} } } ``` ## Protocol Messages ### Creating Messages To request a languag… Prompts Model Context Protocol · in the page specification/2025-06-18/server/prompts …specification/2025-06-18/basic/lifecycle.md#initialization): ```json theme={null} { "capabilities": { "prompts": { "listChanged": true } } } ``` `listChanged` indicates whether the… Resources Model Context Protocol · in the page specification/2025-06-18/server/resources …pport resources **MUST** declare the `resources` capability: ```json theme={null} { "capabilities": { "resources": { "subscribe": true, "listChanged": true } } } ``` The capa… Tools Model Context Protocol · in the page specification/2025-06-18/server/tools …that support tools **MUST** declare the `tools` capability: ```json theme={null} { "capabilities": { "tools": { "listChanged": true } } } ``` `listChanged` indicates whether the s… Completion Model Context Protocol · in the page specification/2025-06-18/server/utilities/completion …t completions **MUST** declare the `completions` capability: ```json theme={null} { "capabilities": { "completions": {} } } ``` ## Protocol Messages ### Requesting Completions To get compl… Logging Model Context Protocol · in the page specification/2025-06-18/server/utilities/logging …age notifications **MUST** declare the `logging` capability: ```json theme={null} { "capabilities": { "logging": {} } } ``` ## Log Levels The protocol follows the standard syslog severity l… Pagination Model Context Protocol · in the page specification/2025-06-18/server/utilities/pagination …sults * An optional `nextCursor` field if more results exist ```json theme={null} { "jsonrpc": "2.0", "id": "123", "result": { "resources": [...], "nextCursor": "eyJwYWdlIjogM30=" } }… Architecture Model Context Protocol · in the page specification/2025-11-25/architecture/index …dination between clients and servers. ## Core Components ```mermaid theme={null} graph LR subgraph "Application Host Process" H[Host] C1[Client 1] C2[Client 2] C3… Authorization Model Context Protocol · in the page specification/2025-11-25/basic/authorization …copes_supported`. Example 401 response with scope guidance: ```http theme={null} HTTP/1.1 401 Unauthorized WWW-Authenticate: Bearer resource_metadata="https://mcp.example.com/.well-known/oauth-prote… Overview Model Context Protocol · in the page specification/2025-11-25/basic/index …to the server or vice versa, to initiate an operation. ```typescript theme={null} { jsonrpc: "2.0"; id: string | number; method: string; params?: { [key: string]: unknown; }; } ``` * R… Lifecycle Model Context Protocol · in the page specification/2025-11-25/basic/lifecycle …n 3. **Shutdown**: Graceful termination of the connection ```mermaid theme={null} sequenceDiagram participant Client participant Server Note over Client,Server: Initialization Phase… Transports Model Context Protocol · in the page specification/2025-11-25/basic/transports …o the server's `stdin` that is not a valid MCP message. ```mermaid theme={null} sequenceDiagram participant Client participant Server Process Client->>+Server Process: Launch subproces… Cancellation Model Context Protocol · in the page specification/2025-11-25/basic/utilities/cancellation …* An optional reason string that can be logged or displayed ```json theme={null} { "jsonrpc": "2.0", "method": "notifications/cancelled", "params": { "requestId": "123", "reason": "Use… Ping Model Context Protocol · in the page specification/2025-11-25/basic/utilities/ping …g request is a standard JSON-RPC request with no parameters: ```json theme={null} { "jsonrpc": "2.0", "id": "123", "method": "ping" } ``` ## Behavior Requirements 1. The receiver **MUST** res… Progress Model Context Protocol · in the page specification/2025-11-25/basic/utilities/progress …means, but **MUST** be unique across all active requests. ```json theme={null} { "jsonrpc": "2.0", "id": 1, "method": "some_method", "params": { "_meta": { "progressToken": "abc1… Tasks Model Context Protocol · in the page specification/2025-11-25/basic/utilities/tasks …ll` | Server supports task-augmented `tools/call` requests | ```json theme={null} { "capabilities": { "tasks": { "list": {}, "cancel": {}, "requests": { "tools": {… Elicitation Model Context Protocol · in the page specification/2025-11-25/client/elicitation …specification/2025-11-25/basic/lifecycle.md#initialization): ```json theme={null} { "capabilities": { "elicitation": { "form": {}, "url": {} } } } ``` For backwards compatibi… Roots Model Context Protocol · in the page specification/2025-11-25/client/roots …specification/2025-11-25/basic/lifecycle.md#initialization): ```json theme={null} { "capabilities": { "roots": { "listChanged": true } } } ``` `listChanged` indicates whether the c… Sampling Model Context Protocol · in the page specification/2025-11-25/client/sampling …-25/basic/lifecycle.md#initialization): **Basic sampling:** ```json theme={null} { "capabilities": { "sampling": {} } } ``` **With tool use support:** ```json theme={null} { "capabilitie… Schema Reference Model Context Protocol · in the page specification/2025-11-25/schema …ture-symbol">;</span><br /> <a class="tsd-kind-property" href="#icon-theme">theme</a><span class="tsd-signature-symbol">?:</span> <span class="tsd-signature-type">"light"</span> <span class="tsd-sign… Prompts Model Context Protocol · in the page specification/2025-11-25/server/prompts …specification/2025-11-25/basic/lifecycle.md#initialization): ```json theme={null} { "capabilities": { "prompts": { "listChanged": true } } } ``` `listChanged` indicates whether the… Resources Model Context Protocol · in the page specification/2025-11-25/server/resources …pport resources **MUST** declare the `resources` capability: ```json theme={null} { "capabilities": { "resources": { "subscribe": true, "listChanged": true } } } ``` The capa… Tools Model Context Protocol · in the page specification/2025-11-25/server/tools …that support tools **MUST** declare the `tools` capability: ```json theme={null} { "capabilities": { "tools": { "listChanged": true } } } ``` `listChanged` indicates whether the s… Completion Model Context Protocol · in the page specification/2025-11-25/server/utilities/completion …t completions **MUST** declare the `completions` capability: ```json theme={null} { "capabilities": { "completions": {} } } ``` ## Protocol Messages ### Requesting Completions To get compl… Logging Model Context Protocol · in the page specification/2025-11-25/server/utilities/logging …age notifications **MUST** declare the `logging` capability: ```json theme={null} { "capabilities": { "logging": {} } } ``` ## Log Levels The protocol follows the standard syslog severity l… Pagination Model Context Protocol · in the page specification/2025-11-25/server/utilities/pagination …sults * An optional `nextCursor` field if more results exist ```json theme={null} { "jsonrpc": "2.0", "id": "123", "result": { "resources": [...], "nextCursor": "eyJwYWdlIjogM30=" } }… Architecture Model Context Protocol · in the page specification/2026-07-28/architecture/index …dination between clients and servers. ## Core Components ```mermaid theme={null} graph LR subgraph "Application Host Process" H[Host] C1[Client 1] C2[Client 2] C3… Authorization Server Discovery Model Context Protocol · in the page specification/2026-07-28/basic/authorization/authorization-server-discovery …Diagram The following diagram outlines an example flow: ```mermaid theme={null} sequenceDiagram participant C as Client participant M as MCP Server (Resource Server) participant A as Au… Client Registration Model Context Protocol · in the page specification/2026-07-28/basic/authorization/client-registration …d-metadata-document-security) ### Example Metadata Document ```json theme={null} { "client_id": "https://app.example.com/oauth/client-metadata.json", "client_name": "Example MCP Client", "clie… Authorization Model Context Protocol · in the page specification/2026-07-28/basic/authorization/index …copes_supported`. Example 401 response with scope guidance: ```http theme={null} HTTP/1.1 401 Unauthorized WWW-Authenticate: Bearer resource_metadata="https://mcp.example.com/.well-known/oauth-prote… Overview Model Context Protocol · in the page specification/2026-07-28/basic/index …om the client to the server, to initiate an operation. ```typescript theme={null} { jsonrpc: "2.0"; id: string | number; method: string; params?: { [key: string]: unknown; }; } ``` * R…