Read docs Updated 2026-06-16
What is Blockchain?
It is an API that returns Bitcoin payment, wallet, and transaction records.
Developers and services building Bitcoin tools or analytics use it to retrieve on-chain data.
What you can build with Blockchain
Bitcoin checkout integration
Add on-chain payment buttons to e-commerce sites that generate unique addresses, monitor confirmations, and auto-update order status.
Wallet balance dashboard
Build internal tools that pull real-time wallet balances and recent transactions for accounting or treasury teams.
Transaction analytics feed
Create alerts or reports that track large transfers, fee spikes, or address activity using historical blockchain data.
Get started with Blockchain
- 1Create a free account at blockchain.com and generate an API key
- 2Choose the Explorer or Payments API endpoints you need
- 3Add the API key to request headers or query parameters
- 4Test calls with curl or Postman against the HTTPS base URL
- 5Handle JSON responses and implement retry logic for rate limits
Blockchain: pros & cons
Pros
- +Direct access to Bitcoin on-chain data
- +Simple API-key authentication
- +HTTPS enforced on all endpoints
- +Well-documented payment and transaction methods
Cons
- –Bitcoin-only; no other chains supported
- –Free tier has strict rate limits
- –Requires secure key storage and rotation
Did you find this helpful?
Frequently asked questions
It provides programmatic access to Bitcoin payments, wallet functions, and raw transaction data via simple REST endpoints.
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