LangChain MCP

LangChain/LangGraph/DeepAgents knowledge + LangGraph agent debugging (Polly-like)

Connector by baixianger · GitHub account verified by the MCP Registry

IndexedLicense unknownLocal (stdio)★ 4

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Works with Claude Code, Codex, VS Code, Cursor, Windsurf, Claude Desktop. Read the repository before you give any tool access to your data.

npx agentmarket install connector/baixianger-langchain-mcp

Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.

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About

LangChain/LangGraph/DeepAgents knowledge + LangGraph agent debugging (Polly-like)

Reviews

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Permissions

What this server can do and what it asks for, from its tool list and install config. Checked Oct 25, 2026.

Tools: 11 read · 0 write · 0 deleteRead-only
Secrets: None asked for
Install scripts: Not scanned yet
Runs as: Node.js package

Tools by what they do 11

Read from the source code; the running server may list different tools.

Read 11 · Look things up without changing anything.

langgraph_get_checkpoint
langgraph_get_run
langgraph_get_thread
langgraph_get_thread_state
langgraph_list_checkpoints
langgraph_list_runs
langgraph_list_threads
search_deepagents_code
search_docs
search_langchain_code
search_langgraph_code

Tools (11)

Read from the source code; the running server may differ. Descriptions are the server’s own words; hidden characters are shown as [U+…].

langgraph_get_checkpoint
Get full state at a specific checkpoint including state values, writes (changes made), and tasks. Use this to inspect historical execution states.
langgraph_get_run
Get details of a specific run including input, output, status, and errors. Note: This returns run metadata, not a step-by-step execution trace.
langgraph_get_thread
Get thread metadata including status, timestamps, and stored values. For current execution state, use langgraph_get_thread_state instead.
langgraph_get_thread_state
Get the latest execution state of a thread including state values, pending tasks, and next nodes. For historical states, use langgraph_list_checkpoints.
langgraph_list_checkpoints
List all checkpoints for a thread. Each checkpoint captures state after a node executes. Returns checkpoint IDs, step numbers, source node, and next node.
langgraph_list_runs
List all runs for a thread. Each run represents one API invocation. Returns run IDs, status, and timestamps.
langgraph_list_threads
List all threads from a LangGraph dev server. Returns thread IDs, status, and timestamps. Requires langgraph dev running.
search_deepagents_code
Search DeepAgents source code. Returns relevant code snippets.
search_docs
Search documentation, references, and tutorials about LangChain, LangGraph, LangSmith, and DeepAgents.
search_langchain_code
Search LangChain source code. Returns relevant code snippets.
search_langgraph_code
Search LangGraph source code. Returns relevant code snippets.

Signals

Stars: 4
Forks: 0
Open issues: 0
Last commit (this folder): Jan 8, 2026 (9 months ago)
Last release: Jan 8, 2026 (9 months ago)

From GitHub (fetched Oct 24, 2026).

Details

Registry name: io.github.baixianger/langchain-mcp
Version: 2.0.0
Auth: No auth
Packages: npm langchain-mcp
License: License unknown
Repository: github.com/baixianger/langchain-MCP
First seen: Oct 24, 2026
Last checked: Oct 25, 2026
Source: Official MCP Registry github-graphql