Query paginated x402 wallet transactions (sender side) for any address, $0.01 per call.
What it does
This endpoint is part of x402scan, a payment data explorer and registry for the x402 protocol built by Merit Systems. It returns paginated USDC transfer records where the specified wallet address is the sender. Results can be filtered by chain (Base or Solana) and by timeframe (1, 7, 14, or 30 days lookback), and sorted by time or amount in ascending or descending order.
The endpoint sits behind an x402 micropayment wall at a fixed price of $0.01 USD per request. Callers supply an X-Payment header to settle the fee. Pagination is 0-based with a configurable page size of 1–100 items (default 10). The broader x402scan API offers companion endpoints for wallet stats, merchant transactions and stats, facilitator data, resource search, and a registry for discovering and registering x402-protected resources.
Note: the specific URL in this listing includes a hardcoded wallet address (0x0F12e5192C0ad92106Eda0C7Ee6FA07AC3A4B439). The canonical parameterized path is /api/x402/wallets/{address}/transactions — any valid Base or Solana address can be substituted. During probing, this particular address returned 404, which may indicate no indexed data exists for that wallet rather than the endpoint being down; the broader x402scan origin is live (HTTP 200) and the OpenAPI spec documents the route as active.
Capabilities
Use cases
- —Retrieve outbound USDC transfer history for a specific wallet address
- —Audit x402 micropayment spending by an AI agent wallet
- —Analyze transaction patterns over 1/7/14/30-day windows filtered by chain
- —Build dashboards showing wallet-level x402 payment activity
- —Verify that a wallet has made specific x402 payments
Fit
Best for
- —Developers building analytics on x402 protocol payment flows
- —AI agents that need to audit their own spending history
- —Researchers studying micropayment adoption on Base and Solana
Not for
- —Looking up arbitrary ERC-20 or SPL token transfers outside x402 USDC payments
- —Real-time streaming of transactions (this is a paginated REST endpoint)
- —Wallets with no indexed x402 activity (will return empty or 404)
Quick start
curl -H "X-Payment: <x402_payment_header>" \
"https://www.x402scan.com/api/x402/wallets/0xYOUR_ADDRESS/transactions?page=0&page_size=10&chain=base&sort_by=time&sort_order=desc"Endpoint
Quality
The OpenAPI spec is well-documented with parameter details and pricing, but the specific probed URL returned 404 (possibly no data for that address). No response schema or example responses are provided. No dedicated docs page exists.
Warnings
- —Probe returned 404 for the hardcoded address in the listing URL; the parameterized route /api/x402/wallets/{address}/transactions is documented in OpenAPI but liveness for this specific address is unconfirmed.
- —No response schema is defined in the OpenAPI spec — only '200: Successful response' without a body schema.
- —No dedicated documentation page found (/docs returns 404).
Citations
- —Endpoint is documented as GET /api/x402/wallets/{address}/transactions with $0.01 fixed pricehttps://www.x402scan.com
- —x402scan is described as a payment data explorer and registry for the x402 protocolhttps://www.x402scan.com
- —Supports filtering by chain (base, solana) and timeframe (1, 7, 14, 30 days)https://www.x402scan.com
- —Built by Merit Systemshttps://www.x402scan.com
- —Origin root returns HTTP 200https://www.x402scan.com