Marketaux MCP Server for LangChain 10 tools — connect in under 2 minutes
LangChain is the leading Python framework for composable LLM applications. Connect Marketaux 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
Vinkius supports streamable HTTP and SSE.
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({
"marketaux": {
"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 Marketaux, show me what tools are available.",
}]
})
print(response["messages"][-1].content)
asyncio.run(main())
* 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 Marketaux MCP Server
Connect your Marketaux account to any AI agent and stay on top of the financial markets through natural conversation.
LangChain's ecosystem of 500+ components combines seamlessly with Marketaux through native MCP adapters. Connect 10 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
- Financial News — Search global news by symbol, keyword, or language
- Sentiment Analysis — Filter news by market sentiment to understand impacts
- Market Data — Query symbols, entities, exchanges, and industries
- Live Status — Check stock market status and global indices
The Marketaux MCP Server exposes 10 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 Marketaux to LangChain via MCP
Follow these steps to integrate the Marketaux 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 10 tools from Marketaux via MCP
Why Use LangChain with the Marketaux MCP Server
LangChain provides unique advantages when paired with Marketaux through the Model Context Protocol.
The largest ecosystem of integrations, chains, and agents. combine Marketaux 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 Marketaux queries for multi-turn workflows
Marketaux + LangChain Use Cases
Practical scenarios where LangChain combined with the Marketaux MCP Server delivers measurable value.
RAG with live data: combine Marketaux tool results with vector store retrievals for answers grounded in both real-time and historical data
Autonomous research agents: LangChain agents query Marketaux, synthesize findings, and generate comprehensive research reports
Multi-tool orchestration: chain Marketaux tools with web scrapers, databases, and calculators in a single agent run
Production monitoring: use LangSmith to trace every Marketaux tool call, measure latency, and optimize your agent's performance
Marketaux MCP Tools for LangChain (10)
These 10 tools become available when you connect Marketaux to LangChain via MCP:
get_entities
) tracked by Marketaux. Get entity data
get_indices
List stock indices
get_latest_news
Get the latest financial news
get_sentiment_analysis
Get news with sentiment analysis
get_stock_market_status
Get stock market status
get_symbols
List supported stock symbols
get_trending_news
Get trending financial news
list_industries
List industries
search_exchanges
Search for stock exchanges
search_news
Search for global financial news
Example Prompts for Marketaux in LangChain
Ready-to-use prompts you can give your LangChain agent to start working with Marketaux immediately.
"Show latest news for AAPL and MSFT."
"Check if the stock market is open now."
"What are the trending financial topics today?"
Troubleshooting Marketaux MCP Server with LangChain
Common issues when connecting Marketaux to LangChain through the Vinkius, and how to resolve them.
MultiServerMCPClient not found
pip install langchain-mcp-adaptersMarketaux + LangChain FAQ
Common questions about integrating Marketaux MCP Server with LangChain.
How does LangChain connect to MCP servers?
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?
Can I trace MCP tool calls in LangSmith?
Connect Marketaux with your favorite client
Step-by-step setup guides for every MCP-compatible client and framework:
Anthropic's native desktop app for Claude with built-in MCP support.
AI-first code editor with integrated LLM-powered coding assistance.
GitHub Copilot in VS Code with Agent mode and MCP support.
Purpose-built IDE for agentic AI coding workflows.
Autonomous AI coding agent that runs inside VS Code.
Anthropic's agentic CLI for terminal-first development.
Python SDK for building production-grade OpenAI agent workflows.
Google's framework for building production AI agents.
Type-safe agent development for Python with first-class MCP support.
TypeScript toolkit for building AI-powered web applications.
TypeScript-native agent framework for modern web stacks.
Python framework for orchestrating collaborative AI agent crews.
Leading Python framework for composable LLM applications.
Data-aware AI agent framework for structured and unstructured sources.
Microsoft's framework for multi-agent collaborative conversations.
Connect Marketaux to LangChain
Get your token, paste the configuration, and start using 10 tools in under 2 minutes. No API key management needed.