# blockfrost Cardano API **Provider:** blockfrost Cardano **Category:** finance **Base URL:** `https://blockfrost.io` **Auth:** api-key โ€” `Authorization: Bearer YOUR_TOKEN` **Rate Limit:** 50K req/day (free) ยท Rate-limited per tier **Free Tier:** Yes โ€” available **Pricing:** Enterprise / contact sales (subscription) **Docs:** https://blockfrost.io/ ## Description Interaction with the Cardano mainnet and several testnets ## Endpoints | Method | Endpoint | Description | |--------|----------|-------------| | GET | `https://blockfrost.io/` | See documentation for endpoint reference | ## Authentication See documentation for auth details ``` Authorization: Bearer YOUR_TOKEN ``` ## Sample Request ```bash curl 'https://blockfrost.io' ``` ## Sample Response ```json {} ``` ## Pricing Details Cardano blockchain API. Free: 50K requests/day. Starter $10/mo: 500K req/day. Pro $30/mo: 1M req/day. Business $60/mo: 5M req/day. --- *Source: [API Map](https://apimap.dev/apis/blockfrost-cardano/) โ€” CC BY 4.0*