Langchain
Verified · dev.npm:@true402MCP server by true402.dev · updated · 77 downloads a week
true402 tools for LangChain — pay-per-call on-chain rug/honeypot & address safety plus backlink/keyword SEO data for Base AI agents over x402 (USDC, no account, no API key). Langchain is published by dev.npm:@true402 from its verified domain in the official MCP Registry.
MIT: permissive, fine for commercial use
Clear description, published package or server URL, original repository
Not checked yet. What we check
Install Langchain
Built from the published package, never by AIclaude mcp add langchain -- npx -y @true402.dev/langchainRun in your terminal. Add --scope user to use it in every project.
{
"mcpServers": {
"langchain": {
"command": "npx",
"args": [
"-y",
"@true402.dev/langchain"
]
}
}
}Settings, Developer, Edit config. Paste into claude_desktop_config.json and restart.
{
"mcpServers": {
"langchain": {
"command": "npx",
"args": [
"-y",
"@true402.dev/langchain"
]
}
}
}Add to ~/.cursor/mcp.json (all projects) or .cursor/mcp.json (this project).
{
"servers": {
"langchain": {
"command": "npx",
"args": [
"-y",
"@true402.dev/langchain"
]
}
}
}Add to .vscode/mcp.json. VS Code uses "servers", not "mcpServers".
codex mcp add langchain -- npx -y @true402.dev/langchain{
"mcpServers": {
"langchain": {
"command": "npx",
"args": [
"-y",
"@true402.dev/langchain"
]
}
}
}Add to ~/.gemini/config/mcp_config.json (all projects) or .agents/mcp_config.json (this project).
gemini mcp add langchain npx -y @true402.dev/langchainGemini CLI was replaced by Antigravity CLI in June 2026 and remains only for enterprise licences and paid API keys.
MCP servers run with your permissions and can read what you give them access to. Some need an API key: check the README and add it under env in the langchain block.
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Langchain: common questions
How do I install Langchain?
In Claude Code run claude mcp add langchain -- npx -y @true402.dev/langchain. For Claude Desktop, Cursor and VS Code, paste the config shown above and restart. See the install guides.
Is Langchain the official server?
Langchain is published by dev.npm:@true402 from its verified domain in the official MCP Registry.
Is Langchain free?
The code is published under the MIT licence. The service it connects to may have its own pricing.
Is Langchain safe to use?
It scores 70 of 100. Grades: licence A, quality C. The security check has not run for it yet. Review the code before you install. How grades work.
What are alternatives to Langchain?
Similar MCP servers: Plunk MCP, Thesvg MCP Server, openshorts, TokPortal.
Does Langchain work with ChatGPT?
Not directly. It runs locally, and ChatGPT only connects to remote servers with a URL. Use it in Claude Code, Claude Desktop, Cursor, VS Code or Codex.