x402check

x402check.dev · 1 paid endpoint · listed 2026-10-31

Before paying any x402 tool: trust-check one seller URL. Use for is-this-endpoint-safe, verify-payTo, uptime, price/wallet drift, budget guard, validate 402, debug failing settle. Returns ok|caution|avoid + that tool's history only. No free tier. Endpoint+history — not wallet OFAC/simulation.

livelast check 16 h ago

100%valid x402 answers, 72 h

$0.018USDC received on Base, 7 days

4distinct payers, 7 days

54.7score (0-100)

Paid endpoints

Method	Endpoint	Price	Networks
GET	x402check.dev/preflight Before paying any x402 tool: trust-check one seller URL. Use for is-this-endpoint-safe, verify-payTo, uptime, price/wallet drift, budget guard, validate 402, de	$0.002	Base

Latest checks

When	Endpoint	HTTP	ms	Result
16 h ago	x402check.dev/preflight	402	266	valid x402 v2 terms

Income on Base (7 days)

Day		Transfers	USDC
2026-11-02		2	$0.012
2026-11-01		3	$0.006

Is this your API?

Add the live badge to your docs:

<a href="https://logicnodes.io/observatory/p/x402check.dev"><img src="https://logicnodes.io/observatory/badge/x402check.dev.svg" alt="x402 status"></a>

Claim it for free with x402_provider_claim (sign with your payout address), and get an alert within minutes when it stops answering with x402_monitor_create ($5 for 30 days). Both work over MCP (https://logicnodes.io/mcp/v2) or POST https://logicnodes.io/v1/tools/<tool>.

Income is all USDC received by the provider's payout address on Base, whatever the source. Score: 0-100: 50 x share of checks in the last 72 h that returned valid x402 payment terms + 30 x min(1, log10(1 + USDC received in 7 days) / 4) + 20 x min(1, log10(1 + distinct payers in 7 days) / 3). A provider never checked scores on income only; income is all USDC received by its payout address on Base, whatever the source. JSON: /v1/observatory/providers/x402check.dev