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Chainlit MCP Server for LangChain 6 tools — connect in under 2 minutes

Built by Vinkius GDPR 6 Tools Framework

LangChain is the leading Python framework for composable LLM applications. Connect Chainlit through Vinkius and LangChain agents can call every tool natively. combine them with retrievers, memory, and output parsers for sophisticated AI pipelines.

Vinkius supports streamable HTTP and SSE.

python
import asyncio
from langchain_mcp_adapters.client import MultiServerMCPClient
from langchain_openai import ChatOpenAI
from langgraph.prebuilt import create_react_agent

async def main():
    # Your Vinkius token. get it at cloud.vinkius.com
    async with MultiServerMCPClient({
        "chainlit": {
            "transport": "streamable_http",
            "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp",
        }
    }) as client:
        tools = client.get_tools()
        agent = create_react_agent(
            ChatOpenAI(model="gpt-4o"),
            tools,
        )
        response = await agent.ainvoke({
            "messages": [{
                "role": "user",
                "content": "Using Chainlit, show me what tools are available.",
            }]
        })
        print(response["messages"][-1].content)

asyncio.run(main())
Chainlit
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* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure

About Chainlit MCP Server

Connect your Chainlit Cloud projects to any AI agent and embrace a new paradigm of conversational observability. Analyze your AI app traffic directly from your terminal or chat.

LangChain's ecosystem of 500+ components combines seamlessly with Chainlit through native MCP adapters. Connect 6 tools via Vinkius and use ReAct agents, Plan-and-Execute strategies, or custom agent architectures. with LangSmith tracing giving full visibility into every tool call, latency, and token cost.

What you can do

  • Project Analytics — Trigger detailed data fetches mapping global traffic statistics, distinct user adoptions, and absolute utilization figures across your AI portfolio.
  • Thread Introspection — Query explicit interaction boundaries isolating full chronological conversations from users securely and swiftly.
  • Trace Logic Steps — Extrapolate internal logic jumps identifying explicit prompts, outputs, tool executions, and retrieval boundaries used per interaction.
  • Qualitative Feedback — Automatically extract lists capturing precise thumbs up/down, implicit ratings, and explicit textual user reviews targeting your bot responses.

The Chainlit MCP Server exposes 6 tools through the Vinkius. Connect it to LangChain in under two minutes — no API keys to rotate, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.

How to Connect Chainlit to LangChain via MCP

Follow these steps to integrate the Chainlit MCP Server with LangChain.

01

Install dependencies

Run pip install langchain langchain-mcp-adapters langgraph langchain-openai

02

Replace the token

Replace [YOUR_TOKEN_HERE] with your Vinkius token

03

Run the agent

Save the code and run python agent.py

04

Explore tools

The agent discovers 6 tools from Chainlit via MCP

Why Use LangChain with the Chainlit MCP Server

LangChain provides unique advantages when paired with Chainlit through the Model Context Protocol.

01

The largest ecosystem of integrations, chains, and agents. combine Chainlit MCP tools with 500+ LangChain components

02

Agent architecture supports ReAct, Plan-and-Execute, and custom strategies with full MCP tool access at every step

03

LangSmith tracing gives you complete visibility into tool calls, latencies, and token usage for production debugging

04

Memory and conversation persistence let agents maintain context across Chainlit queries for multi-turn workflows

Chainlit + LangChain Use Cases

Practical scenarios where LangChain combined with the Chainlit MCP Server delivers measurable value.

01

RAG with live data: combine Chainlit tool results with vector store retrievals for answers grounded in both real-time and historical data

02

Autonomous research agents: LangChain agents query Chainlit, synthesize findings, and generate comprehensive research reports

03

Multi-tool orchestration: chain Chainlit tools with web scrapers, databases, and calculators in a single agent run

04

Production monitoring: use LangSmith to trace every Chainlit tool call, measure latency, and optimize your agent's performance

Chainlit MCP Tools for LangChain (6)

These 6 tools become available when you connect Chainlit to LangChain via MCP:

01

get_stats

Retrieve explicit analytics statistics representing traffic boundaries and resource consumptions over native projects

02

get_thread

Retrieve the exact payload for a specific conversational thread locating exact node topologies

03

list_feedbacks

List absolute user review feedbacks rating explicitly conversational accuracy and value across deployments

04

list_projects

List explicit globally configured Chainlit Cloud projects managing independent app tracking spaces

05

list_steps

List raw programmatic interaction steps explicitly defining prompts and generations inside a single thread

06

list_threads

List conversational threads identifying user interaction boundaries inside a specific deployed project

Example Prompts for Chainlit in LangChain

Ready-to-use prompts you can give your LangChain agent to start working with Chainlit immediately.

01

"Retrieve the analytics stats of my currently enabled Chainlit cloud project targeting traffic."

02

"Search my cloud instance for the recent recorded chat interactions (threads) to fetch what clients asked today."

03

"Gather all negative feedbacks users submitted across this AI project."

Troubleshooting Chainlit MCP Server with LangChain

Common issues when connecting Chainlit to LangChain through the Vinkius, and how to resolve them.

01

MultiServerMCPClient not found

Install: pip install langchain-mcp-adapters

Chainlit + LangChain FAQ

Common questions about integrating Chainlit MCP Server with LangChain.

01

How does LangChain connect to MCP servers?

Use langchain-mcp-adapters to create an MCP client. LangChain discovers all tools and wraps them as native LangChain tools compatible with any agent type.
02

Which LangChain agent types work with MCP?

All agent types including ReAct, OpenAI Functions, and custom agents work with MCP tools. The tools appear as standard LangChain tools after the adapter wraps them.
03

Can I trace MCP tool calls in LangSmith?

Yes. All MCP tool invocations appear as traced steps in LangSmith, showing input parameters, response payloads, latency, and token usage.

Connect Chainlit to LangChain

Get your token, paste the configuration, and start using 6 tools in under 2 minutes. No API key management needed.