Bring Market Data
to LangChain
Twelve Data MCP Server · 16 tools available to AI Agents
What is the Twelve Data MCP Server?
Connect Twelve Data financial API to any AI agent and access real-time stock quotes, cryptocurrency prices, forex rates, and professional technical indicators through natural language.
What you can do
- Real-Time Quotes — Get current price, open, high, low, volume, and change for any stock
- Historical Data — Retrieve OHLCV candlestick data from 1-minute to monthly intervals
- Technical Analysis — Calculate SMA, EMA, RSI, MACD, Bollinger Bands, and Stochastic Oscillator
- Market Scanning — Search and browse available stocks, crypto pairs, and forex instruments
- Company Profiles — Access fundamental data including market cap, P/E ratio, and sector info
- Currency Conversion — Get exchange rates and convert amounts between any currency pair
How it works
1. Subscribe to this server
2. Enter your free Twelve Data API Key
3. Start analyzing markets from Claude, Cursor, or any MCP-compatible client
Built-in capabilities (16)
Convert an amount between currencies
Price touching upper band may indicate overbought, lower may indicate oversold. Get Bollinger Bands
Get company profile and fundamentals
Can filter by exchange. List available crypto pairs
EMA gives more weight to recent prices than SMA. Get Exponential Moving Average (EMA)
Get currency exchange rate
List available forex pairs
Used for trend following and momentum. Get Moving Average Convergence Divergence (MACD)
Get real-time stock quote
Faster and lighter than a full quote. Get current price only
Values above 70 indicate overbought, below 30 indicate oversold conditions. Get Relative Strength Index (RSI)
Common periods: 20, 50, 200. Get Simple Moving Average (SMA)
Values above 80 indicate overbought, below 20 indicate oversold. Get Stochastic Oscillator
Can filter by exchange and partial symbol match. List available stocks
Supports intervals from 1min to 1month. Get historical OHLCV candle data
Can filter by instrument type and exchange. Search for financial instruments
Why LangChain?
LangChain's ecosystem of 500+ components combines seamlessly with Twelve Data through native MCP adapters. Connect 16 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.
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The largest ecosystem of integrations, chains, and agents. combine Twelve Data MCP tools with 500+ LangChain components
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Agent architecture supports ReAct, Plan-and-Execute, and custom strategies with full MCP tool access at every step
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LangSmith tracing gives you complete visibility into tool calls, latencies, and token usage for production debugging
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Memory and conversation persistence let agents maintain context across Twelve Data queries for multi-turn workflows
Twelve Data in LangChain
Twelve Data and 2,500 other MCP servers. One platform. One governance layer.
Teams that connect Twelve Data to LangChain through Vinkius don't need to source, host, or maintain individual MCP servers. Every tool call runs inside a hardened runtime with credential isolation, DLP, and a signed audit chain.
Raw MCP | Vinkius | |
|---|---|---|
| Server catalog | Find and host yourself | 2,500+ managed |
| Infrastructure | Self-hosted | Sandboxed V8 isolates |
| Credential handling | Plaintext in config | Vault + runtime injection |
| Data loss prevention | None | Configurable DLP policies |
| Kill switch | None | Global instant shutdown |
| Financial circuit breakers | None | Per-server limits + alerts |
| Audit trail | None | Ed25519 signed logs |
| SIEM log streaming | None | Splunk, Datadog, Webhook |
| Honeytokens | None | Canary alerts on leak |
| Custom domains | Not applicable | DNS challenge verified |
| GDPR compliance | Manual effort | Automated purge + export |
Why teams choose Vinkius for Twelve Data in LangChain
The Twelve Data 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. All 16 tools execute in hardened sandboxes optimized for native MCP execution.
Your AI agents in LangChain only access the data you authorize, with DLP that blocks sensitive information from ever reaching the model, kill switch for instant shutdown, and up to 60% token savings. Enterprise-grade infrastructure, zero maintenance.
* 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
How Vinkius secures
Twelve Data for LangChain
Every tool call from LangChain to the Twelve Data MCP Server is protected by DLP redaction, cryptographic audit chains, V8 sandbox isolation, kill switch, and financial circuit breakers.
Frequently asked questions
How do I get a Twelve Data API Key?
Visit Twelve Data, sign up for a free account, and copy your API key from the dashboard. Free tier includes 800 API credits/day.
What technical indicators are available?
SMA (Simple Moving Average), EMA (Exponential MA), RSI (Relative Strength Index), MACD, Bollinger Bands, and Stochastic Oscillator — all with customizable periods.
Can I get real-time crypto and forex prices?
Yes! Use get_quote or get_real_time_price with any symbol. Crypto pairs like BTC/USD and forex pairs like EUR/USD are supported.
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.
MultiServerMCPClient not found
Install: pip install langchain-mcp-adapters
Connect Twelve Data 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.
Data-aware AI agent framework for structured and unstructured sources.
Microsoft's framework for multi-agent collaborative conversations.
Give your AI agents the power of Twelve Data MCP Server
Production-grade Twelve Data MCP Server. Verified, monitored, and maintained by Vinkius. Ready for your AI agents — connect and start using immediately.