How do I find my JSONCargo API Key?

Log in to your [**JSONCargo account**](https://api.jsoncargo.com/), navigate to your dashboard, and you will find your API Key in the 'Access Tokens' section. Copy and paste it below.

What vessel identifiers are supported?

The API supports searching by vessel name, IMO number, and unique JSONCargo identifiers.

Does it support real-time positions?

Yes. The `get_current_voyage_details` tool retrieves the most recent position and status metadata for active vessels.

JSONCargo Maritime MCP Server for LangChain 4 tools — connect in under 2 minutes

Name: JSONCargo Maritime
Availability: InStock
Author: Vinkius

python.langchain.com/docs/integrations/tools/mcp

Built by Vinkius GDPR 4 Tools Framework

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

Get MCP Server for AI Agents

ASK AI ABOUT THIS MCP SERVER

Open in ChatGPT Open in Claude Open in Perplexity

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({
        "jsoncargo-maritime": {
            "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 JSONCargo Maritime, show me what tools are available.",
            }]
        })
        print(response["messages"][-1].content)

asyncio.run(main())

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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 JSONCargo Maritime MCP Server

Empower your AI agent to orchestrate your entire maritime research and vessel auditing workflow with JSONCargo Maritime, the comprehensive source for real-time shipping data. By connecting JSONCargo to your agent, you transform complex logistics searches into a natural conversation. Your agent can instantly search for vessels, audit current voyage statuses, and retrieve detailed port metadata without you ever touching a maritime portal. Whether you are conducting supply chain research or monitoring regional trade constraints, your agent acts as a real-time maritime consultant, ensuring your data is always verified and precise.

LangChain's ecosystem of 500+ components combines seamlessly with JSONCargo Maritime through native MCP adapters. Connect 4 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

Vessel Auditing — Search for thousands of maritime vessels by name or IMO number and retrieve detailed metadata, including flags and types.
Voyage Oversight — Audit the current status and position of vessels to understand the temporal distribution of maritime logistics instantly.
Port Discovery — Browse global ports and their location codes (LOCODEs) to maintain strict organizational control over trade routes.
Logistics Intelligence — Retrieve unique vessel identifiers to assist in deep-dive supply chain classification.
Operational Monitoring — Check API status to ensure your maritime research workflow is always operational.

The JSONCargo Maritime MCP Server exposes 4 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 JSONCargo Maritime to LangChain via MCP

Follow these steps to integrate the JSONCargo Maritime MCP Server with LangChain.

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 4 tools from JSONCargo Maritime via MCP

Why Use LangChain with the JSONCargo Maritime MCP Server

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

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

JSONCargo Maritime + LangChain Use Cases

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

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

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

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

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

JSONCargo Maritime MCP Tools for LangChain (4)

These 4 tools become available when you connect JSONCargo Maritime to LangChain via MCP:

check_api_status

Check if the JSONCargo service is operational

get_current_voyage_details

Get full metadata for the current voyage of a specific vessel ID

list_maritime_ports

List global ports registered in the JSONCargo database

search_maritime_vessels

Search for maritime vessels by name or IMO number

Example Prompts for JSONCargo Maritime in LangChain

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

"Search for vessel 'Ever Given' using JSONCargo."

"What is the current voyage status for vessel ID 'VES-123'?"

"List all maritime ports in 'Netherlands'."

Troubleshooting JSONCargo Maritime MCP Server with LangChain

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

MultiServerMCPClient not found

Install: pip install langchain-mcp-adapters

JSONCargo Maritime + LangChain FAQ

Common questions about integrating JSONCargo Maritime 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.