Finnhub MCP server

Finnhub — Stock, Crypto, Forex Data

Finnhub's REST API. Real-time stock quotes, fundamentals, earnings, news, alternative data (insider transactions, sentiment, ETF holdings), economic data, crypto, and forex. Comprehensive market data with a strong free tier.

Part of Pipeworx — an MCP gateway connecting AI agents to 1679+ live data sources.

Why this matters for AI agents

Where Alpha Vantage is solid for fundamentals + technical, Finnhub is stronger for real-time quotes (1-minute resolution on free), insider transactions, news/sentiment, and international markets. For finance agents that need price data alongside news flow and insider activity, Finnhub is fit-for-purpose.

Common flows:

• Quote. Real-time (or 15-min delayed on free tier) stock quote.
• Company news. Recent news for a ticker with sentiment scoring.
• Insider transactions. Form 4 filings with timing and dollar amounts (also see insider-trading pack which is SEC-EDGAR-direct).
• Earnings. Upcoming earnings calendar, surprise history, EPS estimates.
• International symbols. European, Asian, emerging-market tickers (where Alpha Vantage gets thinner).

Auth

Free key from https://finnhub.io/dashboard. Free tier: 60 API calls/minute. Pass via _apiKey.

Higher tiers ($50-200/mo) unlock real-time data, longer historical, and rate limits suitable for production. The free tier is sufficient for most agent research.

When to use Finnhub vs. Alpha Vantage

For richest coverage, Pipeworx agents often mount both.

Common pitfalls

• Symbol conventions. US tickers are simple (AAPL); international markets need exchange suffixes (NESN.SW for Nestlé on Swiss exchange). Finnhub has a symbol search.
• Free tier real-time delay. "Real-time" on free is essentially current; on paid it's actually live. For agent research, free is fine. For trading, paid.
• News sentiment is heuristic. Finnhub computes sentiment with NLP — it's directionally useful but noisy. Don't treat as ground truth; useful as a signal.
• Insider transaction lag. SEC requires Form 4 filing within 2 business days of the transaction. Finnhub picks them up shortly after. Real-time alerting requires either polling or a separate real-time SEC feed.
• Estimates vs. actuals. Finnhub provides analyst consensus estimates; mixing them with actuals in plots requires labeling carefully.
• Free-tier coverage holes. Some smaller caps and OTC stocks have limited Finnhub coverage on free. Verify the data exists for your target tickers before designing flows around it.

Quick Start

Add to your MCP client (Claude Desktop, Cursor, Windsurf, etc.):

{
  "mcpServers": {
    "finnhub": {
      "url": "https://gateway.pipeworx.io/finnhub/mcp"
    }
  }
}

What this endpoint actually serves

tools/list at https://gateway.pipeworx.io/finnhub/mcp returns the tools in the table above plus the shared Pipeworx meta-tools — askpipeworx, discovertools, search_within, remember/recall and the rest of the gateway-wide set. So the tool count you see is larger than this table: a single-pack endpoint currently lists roughly 30 shared tools alongside the pack's own. The connection's initialize response states its exact scope, and is the authoritative answer for a given day.

Shortened. The full README is on GitHub.