CryptaChain APIBlockchain data for builders

60+ chains, sub-100ms P99, integrated compliance screening, fair market value pricing in 36 currencies — one HTTP API.

Wallets & Transactions

Fetch transfer history, token balances, and native balances across 60+ chains. Paginated, filterable, with optional price enrichment.

Compliance Screening

OFAC, EU, UN, UK HMT sanctions checking. Entity attribution. Risk scores. Fast mode in ~20ms, full mode with heuristic analysis.

Fair Market Value Pricing

VWAP pricing aggregated across multiple centralized spot markets. 36 fiat currencies (31 ECB + 5 pegged). Historical prices back to 2011. FX monthly averages for IAS 21.

Chain Coverage

60+ fully indexed chains. Real-time block data with sub-second lag. Bitcoin UTXO, EVM traces, Solana programs. Coverage expanding quarterly.

Base URL

https://api.cryptachain.com

All endpoints are prefixed with /v1. Authentication is via X-API-Key header.

What you can build

Use Case	Endpoint	Latency
CASP compliance screening	`POST /v1/screen/address`	~20ms (fast)
Wallet enrichment	`GET /v1/wallets/{addr}/transfers`	~50ms
Tax reporting (DAC8)	`GET /v1/wallets/{addr}/transfers` + prices	~80ms
Price / NAV calculation	`GET /v1/prices/by-symbol`	~15ms
FX rate lookup	`GET /v1/fx/rate`	~10ms
Fund tracing	`GET /v1/investigate/graph`	~200ms
Real-time monitoring	Webhooks	Push-based

Quick start

bash

# Get your free API key at https://app.cryptachain.com/signup
# Then make your first call:
curl https://api.cryptachain.com/v1/wallets/0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045/balances \
  -H "X-API-Key: YOUR_API_KEY"

Full quick start guide →