Block.io API

API

Simplified Bitcoin Payment, Wallet & Transaction Data API

Overview

The Block.io API provides RESTful endpoints for Bitcoin payment processing, wallet management, and transaction data retrieval. It supports JSON responses and enables tasks like creating wallets, generating addresses, sending funds, checking balances, and fetching transaction histories. Key endpoints include /get_balance, /create_address, and /send_transaction. Ideal for businesses integrating Bitcoin payments, developers building crypto apps, or users tracking transactions programmatically. It requires API key authentication and offers freemium pricing with rate-limited access for basic plans.

Example Integration (JavaScript)

script.js JS


fetch('https://block.io/docs/basic')
  .then(res => res.json())
  .then(data => console.log(data))
  .catch(err => console.error(err));

Key Features

RESTful API
JSON Response Format
Bitcoin Payment Processing
Wallet Management
Transaction Data Retrieval
API Key Authentication

Frequently Asked Questions

? Is Block.io API free to use?

Yes, Block.io offers a free tier with rate limits for basic usage; paid plans are available for higher transaction volumes and additional features.

? Does it require an API Key?

Yes, you must register an account on Block.io to get an API key, which is required for authenticating all requests.

? What is the response format?

All responses from Block.io API are in JSON format, making it easy to parse and integrate into applications.

Top Alternatives

Coinbase API Compare

BitPay API Search Google

Blockchain.com API Search Google

Tool Info

Pricing Freemium

Category Cryptocurrency

Platform Public API

Pros

⊕ Easy integration with detailed documentation
⊕ Simplifies Bitcoin payment workflows
⊕ Comprehensive wallet and transaction tools
⊕ Freemium pricing for small-scale use

Cons

⊖ Rate limits on free tiers
⊖ Requires API key (no anonymous access)
⊖ No SLA for basic plans
⊖ Limited to select cryptocurrencies