staging.402utils.com/v1/x402-probe

proceed grade A x402 endpoint Base Sepolia found on CDP Bazaar delisted confidence 1.00
https://staging.402utils.com/v1/x402-probe

As of 2026-08-15, staging.402utils.com/v1/x402-probe on Base Sepolia held a flawless 100.0% uptime across 190 reliability checks over the past 30 days. Responses came back slow at 1921 ms average from a single EU vantage point (so this includes network distance to the endpoint) and it has held its advertised price steady at $0.0020. Its x402-trust grade is A (score 81.1 from a solid sample, tracked for 41 days), so it currently looks safe to use. It is no longer listed in the x402 directory.

Advertised descriptionQuote an x402-paid API before you buy: probes a third-party endpoint with one unpaid GET (no payment is ever sent) and decodes its payment requirements — x402 v2 base64 PAYMENT-REQUIRED header or v1 JSON body. Returns normalised prices (atomic amount, asset, network, payTo), description, resource URL and Bazaar discovery metadata. Non-402 targets return {isX402:false, status}. SSRF-checked, 1 redirect max, 8 s timeout.(Provider-supplied: an unverified claim, not checked by us. The trust grade above is our independent measurement.)
⏱
Cached snapshot, computed 74 hours ago. This is the full-density trust score computed from every probe, same as the paid API... but it may be up to 24 hours old. For a guaranteed-current answer it re-probes the endpoint live at the moment you ask, adds a confidence band, the full component breakdown, structured risk flags and on-chain settlement proof:
Browser wallet payment, no code required. Agents use POST /v1/x402-trust or the x402_trust_score MCP tool.
30-day uptime
100.0%
Avg latency (EU)
1921 ms
slow · from EU vantage
Confidence
1.00
full-density score
Advertised price
$0.002
USDC
Price stability
Stable
last 30 days
Probes (30d)
190
full record · up to 48/day

Latency is measured from a single EU vantage point; includes network round-trip distance to the endpoint; a geographically distant endpoint reads slower even when its server is fast, so it is only lightly weighted in the score.

Full observation record ▾
Trust gradeA (score 81.1)
Recommendationproceed
Confidence1.00, full-density (every probe in the 30-day window)
30-day uptime100.0%
Avg latency (EU vantage)1921 ms
Probes (30d)190
Advertised price$0.002 USDC
Price stability (30d)stable
Networkeip155:84532
First seen2026-07-04
Last probed2026-08-12
Statusdelisted
Snapshot computed2026-08-12 18:09 UTC
This is the free cached snapshot. Here's what the paid API adds.
  • ✓
    Live probe at decision time:
    We re-check the endpoint the moment you ask (timestamped) and compute the score from all scores up until this moment, instead of this cached snapshot that may be up to 24h old.
  • ✓
    Confidence band, full component breakdown & structured risk flags:
    Exactly why the score is what it is, machine-readable.
  • ✓
    On-chain settlement proof:
    Real USDC volume & distinct-payer count for the payTo wallet: is anyone actually paying it?
  • ✓
    90-day raw history:
    Every listing/price/payTo change and probe result (via POST /v1/x402-history), up to 90 days back.
  • ✓
    The ranked better-scored alternatives:
    The resource URLs, scores & prices we don't reveal above (via POST /v1/similar), if there are better alternatives available.
  • ✓
    Change & liveness alerts:
    Get notified on payTo/price changes, spec regressions or downtime (via POST /v1/watch-endpoint-30d). Connect up to 10 Discord / Slack webhooks or poll regularly with bearer auth. Increases probe-density to every 5 minutes instead of the usual 30 for the watched endpoint.

... Simply give your agents the tools to do all of that for you, with a simple command
$npx -y x402-trust-mcp

Prefer HTTP? Call POST /v1/x402-trust directly (pay-per-call over x402, from $0.005).