io.github.baixianger/langchain-mcp

NPM · LANGCHAIN-MCP · SCANNED AUG 3

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

Available components

+22 this week 68 68 Trust /100

Trust breakdown (6 categories)

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score →

Supply Chain Security87

No malware found by supply-chain analysis.Pass
Only part of the dependency tree could be resolved (106 of 110), so this covers what we could see, not the whole tree.Partial
No install/post-install scripts declared.Pass
Only part of the dependency tree could be resolved (106 of 110), so this covers what we could see, not the whole tree. View diagnostics → Partial

Provenance & Transparency45

Source repository is publicly reachable at the declared URL. View diagnostics → Pass
Provenance check failed: no build-provenance attestation is published. See how to fix → View diagnostics → Fail
Clear OSI-approved license (MIT).Pass
Actively maintained (last published 206 days ago).Pass
Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail

Schema Quality & AI Usability71

AI-judged instruction clarity (good).Pass
Tool/resource definitions use about 662 tokens (~66/item across 10 items; 10 tools + 0 resources), lean.Pass
Usage-examples check failed: none of the tools include examples. See how to fix → Fail

Stability & Change Management27

Stability observed for 8 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial

Tool Coverage100

100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
100% of tool parameters carry a description.Pass

Capabilities100

Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass

Install

Add this component to your MCP client. Where a client-specific snippet is available, pick your client below and copy it straight into your config; otherwise use the connection detail shown.

npm · langchain-mcp

Claude Codex opencode OpenClaw Hermes Other

# add to Claude Code

claude mcp add baixianger-langchain-mcp -- npx -y langchain-mcp

# add to Codex CLI

codex mcp add baixianger-langchain-mcp -- npx -y langchain-mcp

// opencode.json

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "baixianger-langchain-mcp": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "langchain-mcp"
      ],
      "enabled": true
    }
  }
}

# add to OpenClaw

openclaw mcp add baixianger-langchain-mcp --command npx --arg -y --arg langchain-mcp

# ~/.hermes/config.yaml

mcp_servers:
  baixianger-langchain-mcp:
    command: "npx"
    args: ["-y", "langchain-mcp"]

// mcp.json

{
  "mcpServers": {
    "baixianger-langchain-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "langchain-mcp"
      ]
    }
  }
}

Changelog

Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.

3 Aug 26 +4
- Stability: unverified → 0.27 ▲ functional
2 Aug 26 +43
- Provenance: unverified → fail ▼ security
- Install scripts: unverified → pass ▲ security
- Known CVEs: unverified → partial ▲ security
- Malware scan: unverified → pass ▲ security
- Stability: Stability not yet verified: not enough scan history yet (needs a 30-day window). security
- Security disclosure: fail → unverified ▼ functional
- Tool coverage: 100 → unverified ▼ functional
- License: unverified → pass ▲ functional
- Dependency health: unverified → partial ▲ functional
- Maintenance: unverified → pass ▲ functional
- MCP protocol: unverified → pass ▲ functional
- Schema quality: unverified → good ▲ functional
- First check of Schema quality: unverified functional
- Licence: MIT functional
1 Aug 26 −5
- Stability: Stability not yet verified: we do not have a sandbox capture of the MCP schema this version of the package serves yet. security
- Capabilities: pass → unverified ▼ functional
31 Jul 26 −20
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
27 Jul 26 46

First indexed and scored.

Show 2 earlier entries Hide earlier entries

Diagnostics

Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.

Captured 3 Aug 2026 · Analysed npm/[email protected]

Provenance none

Ecosystem: npm · Outcome: none

Dependencies 106 packages

106 packages in the resolved dependency tree · 106 deprecated · 32 stale.

The dependency tree was only partially resolved, so these counts may be incomplete.

MCP tools — 10 exposed · ~662 tokens

The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability.

Tool Tokens

langgraph_analyze_trace ~108

Fetch trace data for AI analysis (Polly-like). Returns structured trace data with optional question for analysis. Ask about errors, suggest improvements, identify inefficiencies.

Input Output Examples

Name	Type	Req	Description
question	string	—	Specific question about the trace (e.g., "Why did the agent fail?")
run_id	string	—	Specific run ID (if omitted, analyzes latest run)
server_url	string	—	LangGraph dev server URL
thread_id	string	yes	Thread ID to analyze

No output schema declared.

No examples provided.

langgraph_get_run ~63

Get detailed trace information for a specific run, including input, output, and execution details.

Input Output Examples

Name	Type	Req	Description
run_id	string	yes	Run ID to retrieve
server_url	string	—	LangGraph dev server URL
thread_id	string	yes	Thread ID

No output schema declared.

No examples provided.

langgraph_get_thread ~49

Get detailed information about a specific thread including its current values and metadata.

Input Output Examples

Name	Type	Req	Description
server_url	string	—	LangGraph dev server URL
thread_id	string	yes	Thread ID to retrieve

No output schema declared.

No examples provided.

langgraph_get_thread_state ~59

Get the current state/checkpoint of a thread, including state values, pending tasks, and next nodes.

Input Output Examples

Name	Type	Req	Description
server_url	string	—	LangGraph dev server URL
thread_id	string	yes	Thread ID to get state for

No output schema declared.

No examples provided.

langgraph_list_runs ~73

List runs (executions) for a specific thread. Use this to find specific runs to inspect.

Input Output Examples

Name	Type	Req	Description
limit	integer	—	Number of runs to return (1-100)
server_url	string	—	LangGraph dev server URL
thread_id	string	yes	Thread ID to list runs for

No output schema declared.

No examples provided.

langgraph_list_threads ~99

List conversation threads from a local LangGraph dev server. Use this to find threads to debug. Requires a running LangGraph server (langgraph dev).

Input Output Examples

Name	Type	Req	Description
limit	integer	—	Number of threads to return (1-100)
offset	integer	—	Offset for pagination
server_url	string	—	LangGraph dev server URL (default: http://localhost:2024)
status	string	—	Filter by thread status

No output schema declared.

No examples provided.

search_deepagents_code ~54

Search DeepAgents source code. Returns relevant code snippets.

Input Output Examples

Name	Type	Req	Description
language	string	—	Filter by language
limit	integer	—	Max results (1-20)
query	string	yes	Search query

No output schema declared.

No examples provided.

search_docs ~51

Search documentation, references, and tutorials about LangChain, LangGraph, LangSmith, and DeepAgents.

Input Output Examples

Name	Type	Req	Description
limit	integer	—	Max results (1-20)
query	string	yes	Search query

No output schema declared.

No examples provided.

search_langchain_code ~53

Search LangChain source code. Returns relevant code snippets.

Input Output Examples

Name	Type	Req	Description
language	string	—	Filter by language
limit	integer	—	Max results (1-20)
query	string	yes	Search query

No output schema declared.

No examples provided.

search_langgraph_code ~53

Search LangGraph source code. Returns relevant code snippets.

Input Output Examples

Name	Type	Req	Description
language	string	—	Filter by language
limit	integer	—	Max results (1-20)
query	string	yes	Search query

No output schema declared.

No examples provided.

On this page

Handy links

Scoring key

80+ high trust
60–79 medium
below 60 low

How we score

Score history · last 30 days

27 Jul 3 Aug