Block
Access Bitcoin payment, wallet, and transaction data via API.
Read docs Updated 2026-06-16
What is Block?
The Block API provides Bitcoin payment, wallet, and transaction data.
It is useful for applications and developers working with Bitcoin financial records.
What you can build with Block
Build a Bitcoin wallet dashboard
Fetch real-time wallet balances and transaction history to display in a personal finance app or portfolio tracker.
Integrate Bitcoin payments
Process incoming payments and verify transaction confirmations for e-commerce or donation platforms accepting BTC.
Monitor blockchain activity
Query transaction data to create alerts or analytics tools for specific addresses or payment flows.
Get started with Block
- 1Sign up on the Block developer portal and obtain an API key
- 2Review the endpoint documentation for wallets, payments, and transactions
- 3Include your API key in the request header for authentication
- 4Make an HTTPS request to retrieve sample Bitcoin data
- 5Handle responses and implement error checking in your application
Block: pros & cons
Pros
- +Focused Bitcoin-specific data coverage
- +API key authentication for secure access
- +HTTPS-only connections
- +Direct wallet and transaction endpoints
Cons
- –Limited to Bitcoin only
- –Requires API key for all calls
- –No details on rate limits provided
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Frequently asked questions
It provides access to Bitcoin payment, wallet, and transaction data via API key authentication.
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