Blockchain Pass API

Powerful, scalable blockchain analytics and compliance API. Screen transactions, investigate addresses, and access real-time risk data across 50+ blockchains.

Get API Access

API Features

Build compliance and investigation tools with our comprehensive blockchain analytics API

Transaction Screening

Screen cryptocurrency transactions in real-time for AML/CFT compliance. Get instant risk scores and entity classifications.

Address Analytics

Analyze blockchain addresses and get detailed risk profiles, labels, and transaction histories across multiple chains.

Real-Time Data

Access real-time blockchain data with low latency. Our API processes 90M+ value transfer events per day.

Cross-Chain Support

Unified API supporting 50+ blockchains including Bitcoin, Ethereum, and all major networks.

Historical Data

Query historical transaction data and trends. Access our comprehensive database of labeled entities.

Enterprise Security

Bank-grade security with API authentication, rate limiting, and encrypted data transmission.

Quick Start

Get started with Blockchain Pass API in minutes

const axios = require('axios');

// Screen a Bitcoin transaction
const screenTransaction = async () => {
  const response = await axios.post(
    'https://api.blockchainpass.com/v1/screen/transaction',
    {
      blockchain: 'bitcoin',
      txHash: 'abc123...'
    },
    {
      headers: {
        'Authorization': 'Bearer YOUR_API_KEY',
        'Content-Type': 'application/json'
      }
    }
  );
  
  console.log('Risk Score:', response.data.riskScore);
  console.log('Classification:', response.data.classification);
};

screenTransaction();

API Endpoints

Explore our comprehensive REST API endpoints

POST /v1/screen/transaction

Screen a cryptocurrency transaction for compliance and risk assessment

GET /v1/address/{address}/risk

Get risk profile and entity classification for a blockchain address

GET /v1/address/{address}/transactions

Retrieve transaction history for a specific address

POST /v1/investigate/trace

Trace funds across blockchains and identify ultimate source/destination

GET /v1/entities/search

Search our database of 1B+ labeled addresses and entities

POST /v1/alerts/monitor

Set up real-time alerts for address activity monitoring