How do I find my OpenExchange App ID?

Log in to your [**Open Exchange Rates dashboard**](https://openexchangerates.org/login), and you will find your App ID on the home page. Copy and paste it below.

Does it support historical data?

Yes. The `get_historical_rates` tool allows you to retrieve the official closing rates for any date since 1999.

Can the agent perform currency conversions?

Yes. The `convert_currency` tool calculates the conversion between two currencies based on the latest market data instantly.

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

Name: OpenExchangeAPI
Availability: InStock
Author: Vinkius

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

Built by Vinkius GDPR 6 Tools Framework

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

asyncio.run(main())

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About OpenExchangeAPI MCP Server

Empower your AI agent to orchestrate your entire financial research and currency auditing workflow with OpenExchangeAPI, the reliable source for global exchange rates. By connecting OpenExchangeAPI to your agent, you transform complex currency data lookups into a natural conversation. Your agent can instantly retrieve latest rates, audit historical currency trends, and perform precise conversions without you ever touching a financial terminal. Whether you are conducting market analysis or managing international payments, your agent acts as a real-time financial analyst, ensuring your intelligence is always grounded in accurate, up-to-the-minute market data.

LangChain's ecosystem of 500+ components combines seamlessly with OpenExchangeAPI 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

Rate Auditing — Retrieve real-time exchange rates for over 200 currencies and maintain a clear view of global market fluctuations.
Historical Oversight — Query historical rates for any specific date to audit past financial trends and valuations.
Conversion Intelligence — Perform instant currency conversions between any pairs to assist in international budgeting.
Temporal Intelligence — Query exchange rate time series to monitor currency performance over specific periods.
Usage Monitoring — Get real-time API usage and plan metadata to maintain strict control over your research budget.

The OpenExchangeAPI 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 OpenExchangeAPI to LangChain via MCP

Follow these steps to integrate the OpenExchangeAPI 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 6 tools from OpenExchangeAPI via MCP

Why Use LangChain with the OpenExchangeAPI MCP Server

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

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

OpenExchangeAPI + LangChain Use Cases

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

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

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

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

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

OpenExchangeAPI MCP Tools for LangChain (6)

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

convert_currency

Convert an amount from one currency to another

get_api_usage

Get current API usage and plan details

get_historical_rates

Get exchange rates for a specific historical date

get_latest_rates

Get the latest exchange rates for a base currency

get_rate_time_series

Get historical rates over a time period

list_supported_currencies

List all supported currency codes and names

Example Prompts for OpenExchangeAPI in LangChain

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

"Get the latest exchange rates for 'EUR' using OpenExchangeAPI."

"Convert 100 USD to BRL."

"What was the exchange rate for USD/JPY on 2020-01-01?"

Troubleshooting OpenExchangeAPI MCP Server with LangChain

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

MultiServerMCPClient not found

Install: pip install langchain-mcp-adapters

OpenExchangeAPI + LangChain FAQ

Common questions about integrating OpenExchangeAPI 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.