Invoicing Plus MCP Server for LangChainGive LangChain instant access to 12 tools to Create Customer, Get Company, Get Customer, and more

Name: Invoicing Plus
Price: 29 USD
Availability: InStock
Rating: 5.0 (1 reviews)
Author: Vinkius

GDPR Free for Subscribers

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

Ask AI about this MCP Server for LangChain

Open in ChatGPT Open in Claude Open in Perplexity

The Invoicing Plus MCP Server for LangChain is a standout in the Productivity category — giving your AI agent 12 tools to work with, ready to go from day one.

Built for AI Agents by Vinkius

Vinkius delivers Streamable HTTP and SSE to any MCP client

Claude

ChatGPT

Cursor

Gemini

Windsurf

VS Code

JetBrains

Vercel

+ other MCP clients

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({
        "invoicing-plus": {
            "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 Invoicing Plus, show me what tools are available.",
            }]
        })
        print(response["messages"][-1].content)

asyncio.run(main())

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 Invoicing Plus MCP Server

Connect your Invoicing Plus account to any AI agent and manage billing through natural conversation.

LangChain's ecosystem of 500+ components combines seamlessly with Invoicing Plus through native MCP adapters. Connect 12 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

Invoice Management — List, create, inspect, and send invoices with line items and tax calculations
Client Database — Browse clients, create new client records, and inspect profiles
Payment Tracking — Monitor payment statuses and track overdue invoices
Product Catalog — Browse products and services with pricing for quick invoice creation
Revenue Monitoring — Track total revenue, outstanding amounts, and payment trends

The Invoicing Plus MCP Server exposes 12 tools through the Vinkius. Connect it to LangChain in under two minutes — credentials fully managed, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.

All 12 Invoicing Plus tools available for LangChain

When LangChain connects to Invoicing Plus through Vinkius, your AI agent gets direct access to every tool listed below — spanning invoicing, estimates, payment-tracking, and more. Every call runs in a secure, isolated environment with full audit visibility. Beyond a simple connection, you get real-time monitoring of agent activity, enterprise governance, and optimized token usage.

create

Create customer on Invoicing Plus

plus with the provided name and email. Create a new customer in Invoicing.plus

get

Get company on Invoicing Plus

plus. Get a specific company from Invoicing.plus

get

Get customer on Invoicing Plus

plus API. Get a specific customer from Invoicing.plus

get

Get estimate on Invoicing Plus

plus API. Get a specific estimate from Invoicing.plus

get

Get invoice on Invoicing Plus

plus API. Get a specific invoice from Invoicing.plus

get

Get item on Invoicing Plus

plus API. Get a specific item from Invoicing.plus

list

List companies on Invoicing Plus

plus. List companies from Invoicing.plus

list

List customers on Invoicing Plus

plus API. List customers from Invoicing.plus

list

List estimates on Invoicing Plus

plus API. List estimates from Invoicing.plus

list

List invoices on Invoicing Plus

plus API. List invoices from Invoicing.plus

list

List items on Invoicing Plus

plus API. List items/products from Invoicing.plus

list

List payments on Invoicing Plus

plus API. List payments from Invoicing.plus

Connect Invoicing Plus to LangChain via MCP

Follow these steps to wire Invoicing Plus into LangChain. The entire setup takes under two minutes — your credentials stay safe behind Vinkius.

Install dependencies

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

Replace the token

Replace [YOUR_TOKEN_HERE] with your Vinkius token

Run the agent

Save the code and run python agent.py

Explore tools

The agent discovers 12 tools from Invoicing Plus via MCP

Why Use LangChain with the Invoicing Plus MCP Server

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

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

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

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

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

Invoicing Plus + LangChain Use Cases

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

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

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

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

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

Example Prompts for Invoicing Plus in LangChain

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

"Create an invoice for Acme Corp with 3 line items and show all overdue invoices."

"Show all clients and the revenue summary for this month."

"Browse the product catalog and send the draft invoice to Acme Corp."

Troubleshooting Invoicing Plus MCP Server with LangChain

Common issues when connecting Invoicing Plus to LangChain through Vinkius, and how to resolve them.

MultiServerMCPClient not found

Install: pip install langchain-mcp-adapters

Invoicing Plus + LangChain FAQ

Common questions about integrating Invoicing Plus MCP Server with LangChain.

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.

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.

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.

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