Overview
Introduction
Welcome to the Crypto APIs Technical Documentation. Below is a detailed breakdown of our 14 core products, each designed to address specific blockchain development needs.
Address Latest
Retrieve real-time address activity from the past 14 days.
- Data: Balances, transactions, token holdings.
- Supported Chains: Ethereum, Bitcoin, Polygon, and 10+ others.
- Features: Updates with 1-block confirmation.
Use Cases: Wallet dashboards, compliance checks.
Address History
Access full historical data from Genesis block onward.
- Data: Balances, transactions, token transfers (NFTs/ERC-20), smart contract interactions.
Use Cases: Audits, tax reporting, forensic analysis.
Block Data
Fetch detailed metadata and transactions for any block.
- Includes: Timestamp, hash, miner details, gas usage, uncle blocks.
Use Cases: Block explorers, network analytics.
Transactions Data
Trace transaction-level details across chains.
- Data: Inputs/outputs, participants, gas fees, status, internal transactions, cross-chain swaps.
Use Cases: Transaction debuggers, DeFi analytics.
Simulate Transactions
Purpose: Test EVM transactions in a risk-free environment.
- Blockchain Transaction Simulator:
- Simulate transactions on Ethereum, Polygon, and BNB Chain.
- Predict outcomes, optimize gas costs, and test bundled transactions.
Use Cases: DeFi strategy testing, Contract vulnerability checks, Gas fee benchmarking.
Blockchain Utils
Simplify cryptographic operations and address management.
Tools: Address validation, X-Address encode/decode.
Use Cases: Wallet integrations, data formatting.
Broadcast Transactions
Submit signed transactions to miners and monitor status. Features: Real-time tracking, retry failed broadcasts. Use Cases: Transaction automation, wallet services.
HD Wallets Management
Sync and manage hierarchical deterministic wallets programmatically.
Features: Track addresses, balances, and histories across 15+ chains.
Use Cases: Custodial wallets, portfolio trackers.
Contracts Data
Purpose: Retrieve comprehensive metadata for smart contracts to enhance blockchain applications with accurate token information.
Features:
- Detailed Metadata: Access information such as token symbols, names, decimals, and total supply.
- High Performance: Achieve data retrieval with response times as low as 25 milliseconds.
- Extensive Support: Compatible with multiple blockchain networks, including Ethereum, Solana, and more.
Use Cases: Token management platforms, decentralized applications (dApps), and blockchain analytics tools.
Blockchain Fees
Estimate transaction costs dynamically.
Supported Chains: ETH, BTC, L2 networks.
Features: Congestion-based fee recommendations.
Use Cases: Gas optimization, DeFi strategies.
Blockchain Events
Purpose: Receive instant webhook alerts for on-chain activity. Triggers: New blocks, mined/unconfirmed transactions, custom confirmations. Features: <100 ms delivery, no node maintenance. Use Cases: Real-time monitoring, fraud detection.
Market Data
Purpose: Access real-time crypto/fiat exchange rates. Pairs: USD, BTC, ETH, and others. Use Cases: Trading bots, price feeds.
Crypto APIs offers different pricing plans to fit your specific needs. To see Crypto APIs' available subscription plans, please visit our dedicated website page.