How do I use Finnhub MCP Server?

1. Click on "Install Server". 2. Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state. 3. In the chat, type @ followed by the MCP server name and your instructions, e.g., "@Finnhub MCP Server What's Apple's current stock price?" That's it! The server will respond to your query, and you can continue using it as needed. Here is a step-by-step guide with screenshots.

Finnhub MCP Server

by Rohit-shopasky

Overview Schema Related Servers Score Discussions

TypeScript

Hybrid

📈 Finnhub MCP Server

Node.js TypeScript MCP SDK License

A Model Context Protocol (MCP) server that gives AI assistants (Claude, Cursor, etc.) real-time access to financial market data via the Finnhub API.

Ask Claude things like:

"What is Apple's current stock price?"
"Show me Tesla's earnings history"
"Get the latest crypto news"
"What are EUR/USD rates right now?"

🛠 Available Tools (11 total)

Category	Tool	What it does
📈 Stocks	`get_stock_quote`	Real-time price, change %, high/low
	`get_stock_candles`	Historical OHLCV candles (1min → monthly)
	`get_company_profile`	Name, exchange, industry, market cap
	`get_basic_financials`	P/E, EPS, beta, ROE, dividend yield
	`get_earnings`	Historical EPS vs estimate + surprise %
📰 News	`get_company_news`	Recent articles for a stock in a date range
	`get_market_news`	Market news by category (general/forex/crypto/merger)
🔍 Search	`search_symbols`	Look up ticker symbols by name or keyword
💱 Forex	`get_forex_rates`	Live exchange rates from a base currency
	`get_forex_candles`	Historical OHLCV for forex pairs
🪙 Crypto	`get_crypto_candles`	Historical OHLCV for crypto pairs

Free Tier Note: The Finnhub free plan supports US stocks (NYSE/NASDAQ), forex, and crypto. Indian (NSE/BSE) and other international exchanges require a paid plan at finnhub.io/pricing.

Related MCP server: MCP Finnhub Server

⚡ Prerequisites

Node.js 20+ → Download
Finnhub API key → Get free key (takes 30 seconds)
AWS CLI (only for Lambda deployment) → Install guide

🚀 Option 1 — Local (Claude Desktop / Cursor)

Step 1: Clone & install

git clone <your-repo-url> finnhub-mcp
cd finnhub-mcp
npm install

Step 2: Add your API key

cp .env.example .env
# Open .env and set:
# FINNHUB_API_KEY=your_key_here

Step 3: Build

npm run build

Step 4: Connect to Claude Desktop

Open (or create) the Claude Desktop config file:

OS	Path
macOS	`~/Library/Application Support/Claude/claude_desktop_config.json`
Windows	`%APPDATA%\Claude\claude_desktop_config.json`

Add the mcpServers block (merge with existing content if the file already exists):

{
  "mcpServers": {
    "finnhub": {
      "command": "node",
      "args": ["/absolute/path/to/finnhub-mcp/dist/index.js"],
      "env": {
        "FINNHUB_API_KEY": "your_api_key_here"
      }
    }
  }
}

Important: Replace /absolute/path/to/finnhub-mcp with the actual path where you cloned the repo.

Step 5: Restart Claude Desktop

Fully quit Claude (don't just close the window) and relaunch it.

Verify: Open a new chat and look for the 🔨 hammer icon at the bottom of the input box. Click it to see all 11 Finnhub tools listed.

Connect to Cursor (Local)

Go to Cursor Settings → MCP → Add Server and add:

{
  "finnhub": {
    "command": "node",
    "args": ["/absolute/path/to/finnhub-mcp/dist/index.js"],
    "env": {
      "FINNHUB_API_KEY": "your_api_key_here"
    }
  }
}

Test with MCP Inspector (optional)

npm run inspector
# Opens http://localhost:5173 — interactive tool tester

☁️ Option 2 — AWS Lambda (Remote / Shared)

Deploy the server as a public HTTPS endpoint that any MCP client can connect to.

Architecture

AI Agent (Claude / Cursor)
        │  HTTPS POST /mcp
        ▼
AWS Lambda Function URL
  (Response Streaming)
        │
        ▼
Express + StreamableHTTP (stateless)
        │
        ▼
Finnhub REST API → finnhub.io

Step 1: Configure AWS CLI

aws configure
# Enter: Access Key ID, Secret Access Key, Region (e.g. us-east-1), Output: json

Verify it works:

aws sts get-caller-identity

Step 2: One-time Lambda setup

bash deploy/lambda-setup.sh

This will:

✅ Create an IAM execution role
✅ Build & package the server into a zip
✅ Create the Lambda function (finnhub-mcp-server)
✅ Create a public Function URL with response streaming

At the end you'll see:

════════════════════════════════════════════════
  ✅ Setup complete!

  MCP Endpoint : https://xxxx.lambda-url.us-east-1.on.aws/mcp
  Health Check : https://xxxx.lambda-url.us-east-1.on.aws/health
════════════════════════════════════════════════

Step 3: Test your Lambda

# Health check
curl https://xxxx.lambda-url.us-east-1.on.aws/health

# Call a tool
curl -X POST https://xxxx.lambda-url.us-east-1.on.aws/mcp \
  -H "Content-Type: application/json" \
  -d '{
    "jsonrpc": "2.0",
    "id": 1,
    "method": "tools/call",
    "params": {
      "name": "get_stock_quote",
      "arguments": { "symbol": "AAPL" }
    }
  }'

Step 4: Connect Claude Desktop to Lambda

Claude Desktop uses mcp-remote as a local bridge to reach the remote Lambda server. No code runs on your machine — mcp-remote just proxies requests over HTTPS.

Open your Claude Desktop config file:

OS	Path
macOS	`~/Library/Application Support/Claude/claude_desktop_config.json`
Windows	`%APPDATA%\Claude\claude_desktop_config.json`

Add the following (replace the URL with the one printed by lambda-setup.sh):

{
  "mcpServers": {
    "finnhub": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote@latest",
        "https://xxxx.execute-api.us-east-1.amazonaws.com/mcp"
      ]
    }
  }
}

Note: npx will download mcp-remote automatically on first launch — no manual install needed.

Fully quit Claude Desktop and relaunch it. On first connection, mcp-remote will perform the MCP handshake with your Lambda and load all 11 tools.

Verify: Click the 🔨 hammer icon in the chat input — you should see all Finnhub tools listed.

Step 5: Connect Cursor to Lambda

Go to Cursor Settings → MCP → Add Server:

{
  "finnhub": {
    "url": "https://xxxx.execute-api.us-east-1.amazonaws.com/mcp"
  }
}

Cursor supports remote HTTP MCP URLs natively — no mcp-remote bridge needed.

Redeploy after code changes

npm run deploy
# or: bash deploy/deploy.sh

📁 Project Structure

finnhub-mcp/
├── src/
│   ├── index.ts          ← Stdio entry point (Claude Desktop / local)
│   ├── http.ts           ← HTTP entry point (Lambda / remote)
│   ├── server.ts         ← Shared MCP server factory
│   ├── finnhub.ts        ← Typed Finnhub HTTP client
│   └── tools/
│       ├── stocks.ts     ← 5 stock tools
│       ├── news.ts       ← 2 news tools
│       ├── search.ts     ← 1 search tool
│       ├── forex.ts      ← 2 forex tools
│       └── crypto.ts     ← 1 crypto tool
├── deploy/
│   ├── lambda-setup.sh   ← One-time AWS setup
│   └── deploy.sh         ← Redeploy script
├── dist/                 ← Compiled output (after npm run build)
├── .env                  ← Your API key (never commit this!)
├── .env.example          ← Template
├── package.json
└── tsconfig.json

🔧 Environment Variables

Variable	Required	Description
`FINNHUB_API_KEY`	✅ Yes	Your Finnhub API key from finnhub.io/register
`PORT`	No	HTTP server port (default: `8080`)
`AWS_REGION`	No	AWS region for deployment (default: `us-east-1`)

💬 Example Prompts

Once connected, try these in Claude:

What is Apple's current stock price and how has it changed today?

Show me Microsoft's company profile and key financial metrics

Get me 5 recent news articles about Tesla

Search for symbols related to "artificial intelligence"

What are the current EUR/USD, GBP/USD, and JPY/USD exchange rates?

Show Bitcoin's daily candles on Binance for the past 30 days

❓ Troubleshooting

Problem	Cause	Fix
`FINNHUB_API_KEY is not set`	Missing env var	Add key to `.env` or Claude config's `env` block
`Error fetching quote: 403`	Symbol not on free plan	Use US stocks (AAPL, TSLA) or upgrade at finnhub.io/pricing
`Error fetching quote: 401`	Invalid API key	Verify key at finnhub.io/dashboard
`Error fetching quote: 429`	Rate limit hit	Free tier = 30 req/sec. Wait and retry
Hammer icon missing in Claude	Server not connecting	Fully quit Claude (not just close) and relaunch
Lambda returns timeout	Cold start too slow	Increase Lambda timeout in AWS console (currently 30s)

📝 License

MIT — free to use, modify, and deploy.

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quality - not tested

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