Finnhub MCP server

Quotes, company profiles, fundamentals, earnings and IPO calendars, plus market and company news. For investors and analysts who research stocks with Finnhub market data. Hosted by usefulapi — connect from Claude, ChatGPT, Cursor, or any MCP client.

Claude claude.ai · Desktop

  1. Open Customize → Connectors, then click + Add → Add custom connector.
  2. Enter the name Finnhub and this URL, then click Add:
    https://finnhub.usefulapi.io/mcp
  3. Claude opens the login page: enter your Finnhub API key.
  4. In a chat, click + → Connectors and turn on Finnhub.

Team and Enterprise: an Owner adds the connector for the organization first.

Claude Code

Run this command, then run /mcp in Claude Code to log in:

claude mcp add --transport http finnhub https://finnhub.usefulapi.io/mcp

Cursor

Add to Cursor or add this to ~/.cursor/mcp.json:

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

VS Code

Add to VS Code or add this to .vscode/mcp.json:

{
  "servers": {
    "finnhub": {
      "type": "http",
      "url": "https://finnhub.usefulapi.io/mcp"
    }
  }
}

ChatGPT chatgpt.com

  1. Open Plugins, click +, then Add custom MCP server.
  2. Enter the name Finnhub and this URL, choose OAuth as the authentication, confirm the warning and create it:
    https://finnhub.usefulapi.io/mcp
  3. ChatGPT opens the login page: enter your Finnhub API key.
  4. In Plugins, install Finnhub, then choose it in a chat.

No Add custom MCP server option? It depends on your account or workspace settings: see OpenAI's guide.

Codex

Run these commands. The second one opens the login page:

codex mcp add finnhub --url https://finnhub.usefulapi.io/mcp
codex mcp login finnhub

Other MCP clients (Windsurf, Cline, Zed and more): add the URL as a remote MCP server (Streamable HTTP). The client then opens the login page in your browser. Do not add an Authorization header: see Before you connect.

live19 toolsFree 50 tool calls / monthPro $9/mo · $90/yr

What you can do with Finnhub in Claude and ChatGPT

Check a stock's price and company facts

The AI finds the symbol by name, then reads the quote (price, change, high, low, open, previous close) and the company profile with industry, market cap and exchange.

finnhub_symbol_search finnhub_quote finnhub_company_profile

Compare a company with its peers

The AI lists peer companies in the same country and GICS sub-industry, then compares key metrics such as valuation, margins, growth and 52-week ratios.

finnhub_peers finnhub_basic_financials

See what analysts expect and how earnings turned out

The AI reads analyst recommendation trends (strong buy to strong sell, by period) and past quarterly EPS, actual against estimated.

finnhub_recommendation_trends finnhub_earnings_surprises

Find upcoming earnings reports and IPOs

The AI reads the earnings calendar for a date range or symbol and the IPO calendar, so you see which companies report or go public soon.

finnhub_earnings_calendar finnhub_ipo_calendar

Read the latest news for a company or the market

The AI reads company news for a symbol over a date range (up to one year back) or general market news by category, and summarizes the headlines.

finnhub_company_news finnhub_market_news

Check insider transactions for a company

The AI reads Form 3, 4 and 5 insider filings for a company, optionally within a date range, and sums up who bought or sold.

finnhub_insider_transactions finnhub_symbol_search

Before you connect

The login page asks for your Finnhub API key.

Find it on your Finnhub Dashboard after signing up (free tier works). Your API key is used only to call the API on your behalf and to derive a private account id; it is never shown to anyone.

Add only the URL. Do not add an Authorization header or an API key to the client config. The server signs you in with OAuth: the login page asks for your Finnhub API key. If the config has such a header, remove it: some clients then send that header instead of the login token, and every call fails with 401.

Example prompts

Turn on the Finnhub connector, then ask in plain words. The AI picks the tools.

Tools 19

ToolTypeWhat it does
finnhub_quoteread
Real-time quote
Real-time quote for a stock — current price (c), change (d), percent change (dp), high (h), low (l), open (o), previous close (pc) and unix timestamp (t). Finnhub REST: GET /quote.
finnhub_symbol_searchread
Symbol search
Search for stock symbols by name or ticker — returns best-matching symbols with descriptions and types. Finnhub REST: GET /search.
finnhub_company_profileread
Company profile
General company profile — name, country, currency, exchange, industry, market cap, share outstanding, IPO date, logo and more. Provide at least one of `symbol`, `isin` or `cusip`. Finnhub REST: GET /stock/profile2.
finnhub_company_newsread
Company news
Latest company news for a symbol over a date range (up to 1 year back). Finnhub REST: GET /company-news.
finnhub_market_newsread
Market news
General latest market news by category. Finnhub REST: GET /news.
finnhub_basic_financialsread
Basic financials
Key financial metrics for a company — valuation, margins, growth, per-share and 52-week ratios. Finnhub REST: GET /stock/metric.
finnhub_recommendation_trendsread
Recommendation trends
Analyst recommendation trends over time — counts of strong buy / buy / hold / sell / strong sell by period. Finnhub REST: GET /stock/recommendation.
finnhub_earnings_surprisesread
Earnings surprises
Historical quarterly EPS surprises — actual vs. estimated EPS by period. Finnhub REST: GET /stock/earnings.
finnhub_price_targetread
Price target
Analyst price targets for a symbol — high / low / median / mean target. Note: this is a premium-tier Finnhub endpoint (may return 403 on the free plan). Finnhub REST: GET /stock/price-target.
finnhub_peersread
Company peers
Peer companies for a symbol (same country and GICS sub-industry). Finnhub REST: GET /stock/peers.
finnhub_insider_transactionsread
Insider transactions
Insider transactions (Form 3/4/5 filings) for a company, optionally within a date range. Finnhub REST: GET /stock/insider-transactions.
finnhub_stock_symbolsread
Stock symbols
List all symbols supported on an exchange. Finnhub REST: GET /stock/symbol.
finnhub_market_statusread
Market status
Current market open/closed status and session for an exchange. Finnhub REST: GET /stock/market-status.
finnhub_earnings_calendarread
Earnings calendar
Upcoming and historical earnings release calendar, optionally filtered by date range and/or symbol. Finnhub REST: GET /calendar/earnings.
finnhub_ipo_calendarread
IPO calendar
IPO calendar for a date range — upcoming and recent initial public offerings. Finnhub REST: GET /calendar/ipo.
finnhub_usage_statusmeta
Usage status (free-tier meter)
Report the caller's current usage: the plan, calls used this month, the limit of the plan (the free monthly cap or the Pro fair use limit), remaining, and whether the limit is reached. Read-only; does not count against the meter.
finnhub_request_featuremeta
Request a missing feature
Tell usefulapi that the user needs something the Finnhub tools cannot do yet (a missing tool, field or filter). Call it only when the user asks for something none of the tools can do, and tell the user that you send the request. Do not call it for errors or for normal requests. Do not include personal data, credentials or customer records. Stored with the product name and the client type (for example Claude or Cursor), without the user's account. At most 5 requests per day. Does not count against the meter.
finnhub_upgrademeta
Upgrade to Pro (unlimited*)
Get Pro: unlimited tool calls (fair use limit: 10,000 a month) on Finnhub (the free tier caps monthly usage). Plans: "monthly" — $9/month; "yearly" — $90/year (2 months free). Cancel any time: Pro then runs to the end of the paid period, so it also suits a one-time job. *A fair use limit applies. For heavy use (near Pro's limit): "plus" or "plus_yearly" — Pro+, $39/month or $390/year, unlimited tool calls (fair use limit: 100,000 a month); an existing Pro subscription changes to Pro+ in place (needs confirm: true; the price difference for the rest of the period is charged at once). Otherwise returns a short link to open in your browser (it opens Stripe Checkout); after payment the account upgrades automatically. Does not count against the meter.
finnhub_cancel_subscriptionmeta
Cancel the Pro subscription
Cancel the caller's Finnhub Pro subscription at the end of the paid period (no refund for the current period; Pro continues until then, then the free tier applies). Requires confirm: true. Run finnhub_upgrade later to undo the cancel before the period ends. Does not count against the meter.

Pricing

PlanPriceLimit
Free$050 tool calls / month
Pro$9/mo · $90/yrUnlimited*

*Pro fair use limit: 10,000 tool calls a month on this server. For more, write to [email protected].

Pro covers this Finnhub server only. Subscribe with finnhub_upgrade (it returns a Stripe Checkout link). Cancel any time with finnhub_cancel_subscription: Pro continues to the end of the paid period, with no refund for the current period, and running finnhub_upgrade before then undoes the cancel. Or write to [email protected].

FAQ

What can I do with Finnhub in Claude or ChatGPT?

Check a stock's price and company facts. Compare a company with its peers. See what analysts expect and how earnings turned out. Find upcoming earnings reports and IPOs. Read the latest news for a company or the market. Check insider transactions for a company. See what you can do for the details.

Is this an official Finnhub product?

No. usefulapi is an independent service. It is not affiliated with or endorsed by Finnhub. The server calls the Finnhub API with your own Finnhub access, so it sees only the data that your account can see.

Can I connect Finnhub to Claude or ChatGPT?

Yes. In Claude, add this server's URL as a custom connector. In ChatGPT, add it as a custom MCP server in Plugins. Then log in once. Cursor, VS Code, Claude Code and Codex work too. See the setup steps.

What do I need to connect?

The login page asks for your Finnhub API key. See Before you connect for where to find it.

Do I put my Finnhub key or an Authorization header in the client config?

No. Add only the URL. Do not add an Authorization header or an API key to the client config. The server signs you in with OAuth: the login page asks for your Finnhub API key. If the config has such a header, remove it: some clients then send that header instead of the login token, and every call fails with 401.

How do you keep my Finnhub credentials?

The login stores them encrypted in the authorization grant of your connection. The server uses them to call the Finnhub API for you and to derive a private account id for usage metering. usefulapi does not show them on any page or in any reply. To stop all access, remove the connector and change or delete these credentials in Finnhub.

Can the AI change my Finnhub data?

All 15 Finnhub tools are marked read-only.

What does it cost?

The Free plan gives 50 tool calls / month. Pro costs $9/mo or $90/yr, with unlimited tool calls (fair use limit: 10,000 tool calls a month), for this Finnhub server only. Cancel any time: Pro then runs to the end of the paid period. Run finnhub_usage_status to see how many calls you used.

How do I subscribe or cancel?

Ask the AI to run finnhub_upgrade: it returns a Stripe Checkout link. To cancel, run finnhub_cancel_subscription. Pro continues to the end of the paid period.

What if a Finnhub tool that I need is missing?

Tell the AI what you wanted to do. It can send the request with finnhub_request_feature. We store the text with the server name, the type of AI client and the tool you tried, not with your account, and read every request when we plan new tools. You can send up to 5 requests per day.

Which AI clients can I use?

Any client that supports remote MCP servers (Streamable HTTP) with OAuth login: Claude (web and desktop), Claude Code, ChatGPT, Codex, Cursor, VS Code, Windsurf and others.

This is a Model Context Protocol endpoint — meant to be connected from an AI client, not opened in a browser. An invalid_token response at the URL is the auth gate working as designed; clients authenticate automatically.

Need a tool this server does not have, or a connection to another system? We build custom integrations and MCP servers.

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