langchain-ai/langchain - CodSpeed

langchain

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feat(langchain): add `langchain.mcp` for loading MCP tools Adds an optional `langchain.mcp` module that turns the tools on an MCP server into LangChain tools. Connection concerns (transport, multi-server config, auth, protocol negotiation) are handled by the FastMCP client; this package only does the conversion. `load_mcp_tools(client)` takes a `fastmcp.Client` and returns `list[BaseTool]`. Install with `langchain[mcp]`, which pulls the lightweight `fastmcp-slim[client]`.

sr/sydney-mcp

3 minutes ago

feat(langchain): add `langchain.mcp` for loading MCP tools Adds an optional `langchain.mcp` module that turns the tools on an MCP server into LangChain tools. Connection concerns (transport, multi-server config, auth, protocol negotiation) are handled by the FastMCP client; this package only does the conversion. `load_mcp_tools(client)` takes a `fastmcp.Client` and returns `list[BaseTool]`. Install with `langchain[mcp]`, which pulls the lightweight `fastmcp-slim[client]`.

sr/sydney-mcp

6 minutes ago

feat(langchain): add `langchain.mcp` for loading MCP tools Adds an optional `langchain.mcp` module that turns the tools on an MCP server into LangChain tools. Connection concerns (transport, multi-server config, auth, protocol negotiation) are handled by the FastMCP client; this package only does the conversion. `load_mcp_tools(client)` takes a `fastmcp.Client` and returns `list[BaseTool]`. Install with `langchain[mcp]`, which pulls the lightweight `fastmcp-slim[client]`.

sr/sydney-mcp

27 minutes ago

feat(langchain): add `langchain.mcp` for loading MCP tools Introduce an optional `langchain.mcp` module that converts the tools exposed by an MCP server into native LangChain tools. Connections, transports, multi-server configuration, authentication, and protocol negotiation are delegated entirely to the FastMCP client; this package owns only the tool conversion. `load_mcp_tools(client)` takes a `fastmcp.Client` and returns `list[BaseTool]` ready for `create_agent`. Installable via `langchain[mcp]`, which pulls the lightweight `fastmcp-slim[client]`. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

sr/sydney-mcp

34 minutes ago

feat(langchain): add `langchain.mcp` for loading MCP tools Introduce an optional `langchain.mcp` subpackage that loads tools from Model Context Protocol (MCP) servers as native LangChain tools, targeting the stateless MCP transport (spec revision 2026-07-28). Installable via `langchain[mcp]`, which pulls the lightweight `fastmcp-slim[client]`. `MCPClient` connects to one or more servers (stdio or Streamable HTTP), reuses a persistent connection across tool calls, and exposes `get_tools()`. It is built on the FastMCP client; connection configs (`StdioServer`, `HTTPServer`) are typed dataclasses. Protocol negotiation defaults to `"auto"` (modern with fallback to the legacy handshake); set `mode="legacy"` on a connection to force older protocol revisions. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

sr/sydney-mcp

3 hours ago

feat(langchain): add `langchain.mcp` for loading MCP tools Introduce an optional `langchain.mcp` subpackage that loads tools from Model Context Protocol (MCP) servers as native LangChain tools, targeting the stateless MCP transport (spec revision 2026-07-28). Installable via `langchain[mcp]`, which pulls the lightweight `fastmcp-slim[client]`. `MCPClient` connects to one or more servers (stdio or Streamable HTTP), reuses a persistent connection across tool calls, and exposes `get_tools()`. It is built on the FastMCP client; connection configs (`StdioServer`, `HTTPServer`) are typed dataclasses. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

sr/sydney-mcp

3 hours ago

style: upgrade to ruff 0.16, mypy 2.3, ty 0.0.73

cbornet:lint-upgrade

4 hours ago

feat(langchain): add `langchain.mcp` for loading MCP tools Introduce an optional `langchain.mcp` subpackage that loads tools from Model Context Protocol (MCP) servers as native LangChain tools, targeting the stateless MCP transport (spec revision 2026-07-28). Installable via `langchain[mcp]`. `MCPClient` connects to one or more servers (stdio or Streamable HTTP), reuses a persistent connection across tool calls, and exposes `get_tools()`. Connection configs (`StdioServer`, `HTTPServer`) are typed dataclasses. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

sr/sydney-mcp

4 hours ago

Latest Branches

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feat(langchain): add `langchain.mcp` for loading MCP tools#39764

4 hours ago

a046a63

sr/sydney-mcp

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style: upgrade to ruff 0.16, mypy 2.3, ty 0.0.73#39652

4 hours ago

176716a

cbornet:lint-upgrade

0%

release(core): 1.6.0#39760

5 hours ago

2201812

cc/release_core

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