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Canary x402 Settlement Test (Base & Solana)
x402
Canary x402 Settlement Test (Base & Solana) is a paid API for AI agents from scanpay-edge.alextaghiashvili.workers.dev, paid per call via x402, $0.0001/call, status unknown (last checked 2026-11-02).
Deterministic echo endpoint that proves end-to-end x402 wallet signing, facilitator settlement, and delivery receipts for Base and Solana wallets at minimum cost.
Price / call$0.0001
Success—
StatusUnknown
How this service works
Cheapest deterministic x402 settlement test endpoint for Base and Solana wallets: proves wallet signing, facilitator settlement and delivery receipts end to end. POST any JSON object up to 8 KB or GET arbitrary query parameters; echo truncated to 2000 chars; optional status=200-599 and delay_ms=0-3000 to test error paths and timeouts; no upstream calls.
Output
A JSON object containing: ok (boolean), ts (Unix timestamp), echo (your input params truncated to 2000 chars), note (description string), method (HTTP method used), product (scanpay.canary), and price_usd (0.0001). No upstream calls are made; the response is fully deterministic.
Example use cases
Validate x402 wallet integration before launch
“Before I go live, can you hit the x402 canary endpoint with my Base wallet and confirm the full signing and settlement cycle works? Echo back a test payload so I can see the delivery receipt.”
Simulate timeout to test agent error handling
“I want to test how my agent handles a slow x402 response — can you call the canary endpoint with a 2500 millisecond delay and a 504 status so I can see the timeout error path?”
Cheapest possible x402 liveness check
“Do a minimal $0.0001 canary call on the x402 settlement endpoint for my Solana wallet and confirm it echoes back correctly — I just need to know the facilitator pipeline is alive.”
Technical details
Endpoint
GEThttps://scanpay-edge.alextaghiashvili.workers.dev/api/v1/canary?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need the absolute cheapest ($0.0001 USDC) deterministic confirmation that your x402 payment stack — wallet signing, facilitator settlement, and delivery receipts — works end to end on Base or Solana. Ideal for integration smoke tests, CI/CD health checks, and simulating error paths (custom status codes and delays) without any upstream side effects.
Side effects
- status= parameter set to 4xx/5xx triggers that HTTP status code for error path testing
- delay_ms up to 3000 causes intentional response delay, may cause client timeouts
- Input JSON exceeding 8192 bytes is rejected
- Invalid query parameter encoding may result in parse errors
- x402 payment failure (insufficient balance, signing error) will block the call before any echo
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"ts": 1793491200,
"echo": {
"ping": "canary"
},
"note": "Cheapest deterministic x402 settlement test endpoint: one call proves wallet signing, facilitator settlement and delivery receipts end to end.",
"method": "POST",
"product": "scanpay.canary",
"price_usd": 0.0001
}
}Tags
x402
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