Get Started with Blockfrost

Use the hosted Blockfrost API by creating a free account at blockfrost.io/auth/signin.

Sign up

Create your project

After signing in, create your first project:

1. Click + ADD PROJECT
2. Choose a project name
3. Select the network (mainnet, preprod, or preview)
4. Click SAVE PROJECT

You'll receive a unique project_id (API key) for accessing the API.

warning

Keep your project_id secret. Never commit it to public repositories or embed in client-side code. Use environment variables and store it in your backend to prevent unauthorized access. Ideally, set up your own application backend to store your project_id securely, avoiding potential leaks. Otherwise, unauthorized individuals could exploit your token.

A project provides API access to a specific network. Each project has its own project_id for API authentication.

Use SDKs

Blockfrost supports 15+ programming languages with official SDKs:

• blockfrost-js - JavaScript/TypeScript
• blockfrost-python - Python
• blockfrost-rust - Rust
• blockfrost-go - Go
• blockfrost-haskell - Haskell
• blockfrost-java - Java
• blockfrost-kotlin - Kotlin
• blockfrost-scala - Scala
• blockfrost-swift - Swift
• blockfrost-ruby - Ruby
• blockfrost-php - PHP
• blockfrost-elixir - Elixir
• blockfrost-dotnet - .NET
• blockfrost-crystal - Crystal
• blockfrost-arduino - Arduino

Next steps

• Explore Cardano APIs - Query blockchain data
• Set up webhooks - Subscribe to blockchain events
• Visit Blockfrost.dev - API documentation and examples