canary / x402

a pre-flight check for the agent economy. -- endpoints watched, -- degraded, -- x402-enabled. paste any endpoint below to check it before you pay.

canary-pulse

60s window live

62 checks/min p50 118ms

pre-flight · paste any x402 url

https://

try

82trust

verdict

safe-to-pay

Spec-compliant. Signed 402 challenge, stable response shape, verified recipient.

monitor

loading…

method endpoint status latency code

agent integration

GET

/api/trust?url={endpoint}

Quick trust score for agents — returns a safe-to-pay recommendation before payment.

POST

/api/preflight

Full spec-compliance report with letter grade and itemized check results.

GET

/api/health

Live status of all monitored endpoints.

example · javascript

const trust = await fetch(
  "https://canary.0x402.sh/api/trust?url=" + encodeURIComponent(targetUrl)
);
const { trustScore, recommendation } = await trust.json();

if (recommendation === "safe-to-pay") {
  // proceed with x402 payment
}