Best LangChain MCP Servers
LangChain is a framework for developing applications powered by language models, providing tools and components to build context-aware, reasoning applications that integrate with external data sources.
Why this server?
Provides screenshot capabilities for LangChain agents.
AlicenseBqualityAmaintenanceEnables AI agents to capture full-page or viewport screenshots of any web page with options for ad removal, cookie banner blocking, and proxy country selection.Last updated42MITWhy this server?
Wraps LangChain tools with EMILIA authorization gates, enabling policy evaluation, human signoff, and verifiable receipts for agent actions via the langchain-emilia package.

emilia-mcp-serverofficial
AlicenseAqualityAmaintenanceThe accountability layer for AI agents — a named human's signed yes before an agent does anything irreversible (payment, record change, deploy), then an offline-verifiable Trust Receipt. Apache-2.0, formally verified.Last updated12172Apache 2.0Why this server?
Makes Patchistry's commerce tools discoverable and usable by LangChain-based agents for catalog queries and recommendations.

Patchistryofficial
AlicenseAqualityAmaintenancePatchistry commerce tools — modular hats, patches, curated builds (bachelorette/wedding/dads/festival), shipping, contact. AI agents can query the live Patchistry catalog in real-timeLast updated76167MITWhy this server?
Provides LangChain-based AI agents with tools to observe, operate, and govern GPU clusters.

vibops-mcpofficial
AlicenseAqualityAmaintenanceVibOps MCP is the control plane between your AI agents and your GPU infrastructure. 74 tools covering: GPU fleet management (deploy, scale, monitor across NVIDIA, AMD, Intel, AWS, Google, Groq), Agent Infrastructure Control Plane (per-agent GPU cost, budget enforcement, model policies, dependency graph), governance (AI Act, SOC 2, immutable HMAC audit chain), and GPU FinOps (chargeback, waste..)..Last updated7417MITWhy this server?
Provides integration examples for using SignNow eSignature tools within LangChain AI agent frameworks

SignNow MCP Serverofficial
AlicenseAqualityBmaintenancehttps://github.com/signnow/sn-mcp-server MCP server for SignNow e-signature: templates, invites, embedded signing/editor, status & downloads.Last updated256MITWhy this server?
Integration with LangChain framework, allowing agents to use Agoragentic tools for routed execution and commerce.
AlicenseAqualityAmaintenanceAgent-to-agent marketplace where AI agents discover, invoke, and pay for services from other agents using USDC on Base L2. 72+ services, free tools, x402 micropayments.Last updated381920MITWhy this server?
Provides a recipe for using ProsodyAI as a LangChain tool, enabling AI agents to incorporate prosody-driven adaptation into LangChain workflows.

@prosodyai/mcp-docsofficial
AlicenseAqualityCmaintenanceExposes ProsodyAI documentation, SDK references, REST API reference (OpenAPI), and curated implementation recipes to AI coding agents via MCP tools and resources.Last updated8MITWhy this server?
Integrates with LangChain agents via MCP adapters, enabling fleet knowledge retrieval, conservation checks, and ternary validation in LangChain workflows.
AlicenseAqualityCmaintenanceEnables Claude Code to query and control the SuperInstance fleet, including fleet status, conservation law checks, semantic search, and agent registry.Last updated88MITWhy this server?
Provides integration examples for connecting the Teamwork.com MCP server with LangChain applications in both Node.js and Python