Is the Bitfinex API free?

Yes — the Bitfinex API itself is free. You only pay trading fees on orders it places, and read-only market-data endpoints cost nothing.

How do I get a Bitfinex API key?

Log in to Bitfinex, open the API management section in account settings, create a key with the permissions you need, copy the secret once, and restrict it to your server IP.

Bitfinex API — how to get keys, cost & fees

✓ Last verified: 2026-07-15· Source: official provider pricing page· Auto-monitored — report change →

Bitfinex is a veteran exchange favoured by advanced traders, with a deep spot, margin and derivatives API, funding (P2P lending) endpoints and granular order types over REST and WebSocket.

What the API does & cost

Use	Cost
Market data	Free
Spot taker	~0.2% (down by 30-day volume)
Maker	~0.1%
API access	Free

⚠️ The Bitfinex API is free to use — you only pay trading fees on the trades it places. Fees, tiers and limits change; confirm on the official Bitfinex docs. Read-only market-data endpoints cost nothing. · Report outdated price →

Bitfinex's funding/lending market is unusual — its API exposes the order book for margin funding, which most exchanges don't offer.

How to get your Bitfinex API keys

Log in at bitfinex.com, go to Account → API Keys, create a key with scoped permissions (orders, wallets, funding), and copy the secret once.

Security — read this

Never share your secret — it's shown once and can't be recovered (regenerate if leaked). For data-only bots enable read-only. Always whitelist your server IP, and never enable withdrawals on an API key unless you truly need it.

Alternatives

Kraken is a similar pro-grade option with strong compliance. Compare the big three first: Binance, Bybit, OKX. For pure price data, CoinGecko is simpler.

← All crypto exchange APIs · trade safely — size positions with RektCalc.

Not affiliated with Bitfinex. Prices are reference estimates — verify on the official site.