code402 Chain Data

active

Deterministic compliance verification (IBAN, sanctions, onchain address) with XDR-1 signed receipts, plus Ethereum chain-data endpoints. Paid per call via x402 on Base (USDC).

DataBasex402 v2exactcode402.dev ↗︎

Settled via Coinbase.

The live 402 challenge pays a wallet its listing does not advertise.

Transactions · 30d
3
Volume · 30d
$0.015
Unique buyers · 30d
2
Uptime · 30d
100.0%
Latency p50
14ms
Reported calls · 30d
10

Endpoints (10 live)

  • POST /v1/verify/bundle — Multi-gate compliance verification: IBAN validation, sanctions screening, onchain address validation with XDR-1 signed receipts. x402 economy/standard/premium tiers. (0.5 USDC on Base)
  • GET /v1/chain/block-number — Latest Ethereum block height (0.005 USDC on Base)
  • GET /v1/chain/tx-receipt/1 — Transaction receipt: status, gas used, logs, contract address (0.008 USDC on Base)
  • GET /v1/chain/code/1 — Deployed bytecode at an address (empty=EOA, non-empty=contract) (0.005 USDC on Base)
  • GET /v1/chain/gas-price — Current Ethereum gas price (base fee + priority fee) (0.005 USDC on Base)
  • GET /v1/chain/balance/1 — Native ETH balance of an address (0.005 USDC on Base)
  • GET /v1/chain/ens/1 — Resolve a .eth name to its address via the ENS universal resolver (0.008 USDC on Base)
  • GET /v1/chain/erc20/1/1 — ERC20 token balance of an address (balanceOf eth_call) (0.005 USDC on Base)
  • GET /v1/chain/nonce/1 — Next transaction nonce for an address (0.005 USDC on Base)
  • GET /v1/chain/tx/1 — Full Ethereum transaction details by hash (0.008 USDC on Base)

First seen · last seen · last active