Live APIs
Live APIs provide real-time and near-real-time blockchain data through stable, production-ready APIs.
They are designed for applications that need fresh on-chain information without running nodes, managing indexers, or handling chain complexity.
Typical use cases include:
- Monitoring new blocks and transactions
- Tracking mempool activity
- Calculating fees and network signals
- Powering dashboards, alerts, and user-facing features
Live APIs work well for both backend services and client-side integrations.
Access methods
Live APIs are available through two transport layers, depending on your use case.
HTTP (REST)
Use HTTP APIs when you need:
- On-demand queries
- Request/response workflows
- Backend or batch-style integrations
HTTP endpoints are stateless, versioned, and authenticated via API tokens.
WebSockets
Use WebSockets for:
- Streaming updates
- Event-driven applications
- Real-time monitoring and notifications
WebSocket connections allow you to subscribe to specific data streams and receive updates as events occur, using the same application token.
Applications and tokens
All access to Live APIs is scoped by applications.
An application represents:
- A specific Live API product
- Its configuration
- One or more API tokens
- Its usage limits and billing
Applications and tokens are managed in the dashboard.
Every request — HTTP or WebSocket — must include a valid API token associated with an application.
Supported networks
Live APIs currently focus on Bitcoin-like networks.
Coverage is expanding, with additional blockchain families planned based on demand, including:
- EVM-compatible networks
- Solana
Each application documents the exact networks and features it supports.
Data consistency and reliability
Live APIs are built on managed indexing infrastructure and are designed for production use.
Key characteristics:
- Indexed and served from controlled pipelines
- Designed to handle reorgs and chain updates
- Streaming endpoints emit ordered, consistent events per stream
Exact guarantees and behavior are documented per application.
Available Live APIs
Live APIs are organized by application.
Each application has its own documentation covering:
- Supported endpoints
- Data models and fields
- Example HTTP requests
- WebSocket subscriptions (when applicable)
Select a specific Live API application from the sidebar to see details.
Next steps
- Choose a Live API application from the sidebar
- Review its data model and endpoints
- Create an application and generate an API token in the dashboard
- Integrate using HTTP or WebSockets
→ Continue with a specific Live API application