Is Coinlib free to use?

Yes, Coinlib is listed as a free public API. Visit the official documentation for current rate limits and usage policies.

Does Coinlib require authentication?

Yes, Coinlib requires API Key authentication. Check the documentation for setup instructions.

Coinlib — Free Public API

Overview

Coinlib provides crypto price data — key-based.

⚠️ Status (verified 2026-08): a guessed path returned HTTP 404 (a large HTML page) — the route paths differ. Check the apidocs (coinlib.io/apidocs) for valid routes.

What it provides

curl "https://coinlib.io/api/v1/coin?key=YOUR_KEY&pref=USD&symbol=BTC"

Notes

Coin prices with global currency preference.
Route paths per the apidocs.

FAQ

Is Coinlib free? Key-based with a free tier per the docs.

Why 404? Our 2026-08 guess path was wrong (verified) — check the apidocs.

What does it do? Crypto price lookups.

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