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x402 Endpoint Probe
x402
x402 Endpoint Probe is a paid API for AI agents from agent.kihustle.tech, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-15).
Probes a peer x402-compatible URL to verify HTTP 402 Payment Required compliance, header/body agreement, and latency without settling a payment.
Price / call$0.02
Success—
StatusUnknown
How this service works
Probe a peer x402 jobs URL and return a CC0 x402-probe-receipt-v1 (HTTP status, PAYMENT-REQUIRED body/header agreement, latency). Interop helper for agent operators. Does not settle. Keywords: x402, probe, 402, interop, b2b.
Output
Returns a CC0 x402-probe-receipt-v1 object containing: the HTTP status code returned by the probed endpoint, whether the Payment Required body and header are in agreement (compliance flag), measured latency in milliseconds, and any relevant diagnostic details about the 402 response surface. No payment is settled.
Example use cases
Verify new partner agent compliance
“Before we integrate with AgentX's payment endpoint at https://agentx.example.com/jobs, can you probe it to confirm it's properly returning a 402 with the right x402 headers and body — don't make a payment, just check the spec compliance and latency?”
Debug own x402 surface before launch
“I just deployed my x402 jobs endpoint at https://mypayagent.io/services/jobs — can you probe it and tell me whether the Payment Required response body and header are correctly aligned with the x402 spec, and what the response latency looks like?”
Routine interop health check for agent fleet
“I need to do a quick interop check on https://fleet-node-7.agentops.io/services/jobs — probe it for x402 compliance, give me the HTTP status, whether the 402 body and header agree, and the latency, without settling anything.”
Technical details
Endpoint
POSThttps://agent.kihustle.tech/services/x402-endpoint-probe/jobsWhen to prefer
Choose this endpoint when you need to verify that a peer x402-compliant endpoint is correctly implementing the 402 Payment Required protocol — including header/body agreement and latency — without executing any actual payment settlement. It is specifically designed for agent operators doing b2b interoperability checks, pre-integration validation, or ongoing compliance monitoring of x402 payment surfaces. Prefer it over a generic HTTP health-check tool when the x402 protocol specifics (payment header structure, body schema) matter to your integration.
Side effects
- Target URL is unreachable or times out — probe returns a connection error with no receipt
- Target URL does not return a 402 status — receipt notes non-compliance
- Header/body mismatch on the target endpoint — flagged as non-compliant in receipt
- Malformed target URL input — validation error before probe is attempted
- Target endpoint rate-limits the probe request — may return a 429 or timeout
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string | HTTPS x402 jobs URL |
| payload | object | |
| expect_402 | boolean |
Tags
x402
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