mcp

mcp — a production-grade Model Context Protocol SDK for D.

Importing mcp re-exports the curated, stable public API:

- the protocol types (mcp.protocol.*: versions, errors, JSON-RPC, capabilities, core types, sampling), - the server / client entry points (McpServer, McpClient, RequestContext), - the declarative UDA / reflection layer (@tool, @resource, @prompt, registerModule, schema generation), and - the error builders (McpException, ErrorCode, toErrorJson, makeErrorResponse).

Transport wiring and auth plumbing are deliberately kept out of the top-level surface to avoid name collisions and to signal stable-public-API vs internal plumbing. Bring them in explicitly when needed:

- import mcp.transport; — stdio / Streamable HTTP / SSE / session / OAuth-proxy mount / modern transport helpers, - import mcp.auth; — token verifiers / OAuth client / login / resource-server / OAuth proxy.

Modules

api module mcp.api
auth module mcp.auth: mcp.auth — opt-in authentication / authorization plumbing for the MCP SDK.
client module mcp.client
protocol module mcp.protocol
server module mcp.server
transport module mcp.transport: mcp.transport — opt-in transport wiring for the MCP SDK.

Public Imports

mcp.protocol.versions public import mcp.protocol.versions;: Undocumented in source.

mcp.protocol.errors public import mcp.protocol.errors;: Undocumented in source.

mcp.protocol.jsonrpc public import mcp.protocol.jsonrpc;: Undocumented in source.

mcp.protocol.capabilities public import mcp.protocol.capabilities;: Undocumented in source.

mcp.protocol.types public import mcp.protocol.types;: Undocumented in source.

mcp.protocol.sampling public import mcp.protocol.sampling;: Undocumented in source.

mcp.server.context public import mcp.server.context;: Undocumented in source.

mcp.server.server public import mcp.server.server;: Undocumented in source.

mcp.client.client public import mcp.client.client;: Undocumented in source.

mcp.client.subscription public import mcp.client.subscription;: Undocumented in source.

mcp.api.attributes public import mcp.api.attributes;: Undocumented in source.

mcp.api.schema public import mcp.api.schema;: Undocumented in source.

mcp.api.reflection public import mcp.api.reflection;: Undocumented in source.

Members

Imports

CacheHint (from mcp.protocol.modern) public import mcp.protocol.modern : DiscoverResult, CacheHint, CacheScope, RequestMeta;: Undocumented in source.
CacheScope (from mcp.protocol.modern) public import mcp.protocol.modern : DiscoverResult, CacheHint, CacheScope, RequestMeta;: Undocumented in source.
DiscoverResult (from mcp.protocol.modern) public import mcp.protocol.modern : DiscoverResult, CacheHint, CacheScope, RequestMeta;: Undocumented in source.
RequestMeta (from mcp.protocol.modern) public import mcp.protocol.modern : DiscoverResult, CacheHint, CacheScope, RequestMeta;: Undocumented in source.
RequestStateBinding (from mcp.server.request_state) public import mcp.server.request_state : RequestStateSecurity, RequestStateMode, RequestStateBinding;: Undocumented in source.
RequestStateMode (from mcp.server.request_state) public import mcp.server.request_state : RequestStateSecurity, RequestStateMode, RequestStateBinding;: Undocumented in source.
RequestStateSecurity (from mcp.server.request_state) public import mcp.server.request_state : RequestStateSecurity, RequestStateMode, RequestStateBinding;: Undocumented in source.

modules