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Clientjoy MCP Server for LangChain 8 tools — connect in under 2 minutes

Built by Vinkius GDPR 8 Tools Framework

LangChain is the leading Python framework for composable LLM applications. Connect Clientjoy 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({
        "clientjoy": {
            "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 Clientjoy, show me what tools are available.",
            }]
        })
        print(response["messages"][-1].content)

asyncio.run(main())
Clientjoy
Fully ManagedVinkius Servers
60%Token savings
High SecurityEnterprise-grade
IAMAccess control
EU AI ActCompliant
DLPData protection
V8 IsolateSandboxed
Ed25519Audit chain
<40msKill switch
Stream every event to Splunk, Datadog, or your own webhook in real-time

* 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 Clientjoy MCP Server

Connect your Clientjoy account to any AI agent and take full control of your agency operations through natural conversation. Streamline how you manage the entire lifecycle from lead capture to final invoicing natively.

LangChain's ecosystem of 500+ components combines seamlessly with Clientjoy through native MCP adapters. Connect 8 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

  • Lead Oversight — List and retrieve details for all sales leads and their capture status natively
  • Contact Intelligence — Access and monitor all client contacts and relationship history flawlessly
  • Invoicing Logistics — List all agency invoices and monitor their payment status flawlessly
  • Project Management — Access and monitor all client projects and their constituent tasks securely
  • Sales Pipelines — List and review quotes and proposals sent to potential clients flawlessly
  • Profile Visibility — Access your own user profile and core workspace metadata directly within your workspace flawlessly

The Clientjoy MCP Server exposes 8 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 Clientjoy to LangChain via MCP

Follow these steps to integrate the Clientjoy 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 8 tools from Clientjoy via MCP

Why Use LangChain with the Clientjoy MCP Server

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

01

The largest ecosystem of integrations, chains, and agents. combine Clientjoy 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 Clientjoy queries for multi-turn workflows

Clientjoy + LangChain Use Cases

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

01

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

02

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

03

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

04

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

Clientjoy MCP Tools for LangChain (8)

These 8 tools become available when you connect Clientjoy to LangChain via MCP:

01

get_contact_crm_details

Get detailed information for a specific contact

02

get_lead_crm_details

Get detailed information for a specific lead

03

get_my_clientjoy_profile

Retrieve information about the authenticated workspace user

04

list_agency_invoices

List all invoices and their payment status

05

list_agency_projects

List all client projects tracked in Clientjoy

06

list_clientjoy_contacts

List all contacts and clients stored in the CRM

07

list_clientjoy_leads

List all sales leads captured in Clientjoy

08

list_sales_quotes

List sales quotes and proposals sent to clients

Example Prompts for Clientjoy in LangChain

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

01

"List all my new leads in Clientjoy."

02

"Show me my unpaid invoices."

03

"What is the status of the 'Website Redesign' project?"

Troubleshooting Clientjoy MCP Server with LangChain

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

01

MultiServerMCPClient not found

Install: pip install langchain-mcp-adapters

Clientjoy + LangChain FAQ

Common questions about integrating Clientjoy 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 Clientjoy to LangChain

Get your token, paste the configuration, and start using 8 tools in under 2 minutes. No API key management needed.