Verify deliverable, code only

crosscheckapi.com · 1 paid endpoint · listed 2026-10-27

Verify output another AI agent hands back, by code alone, for $0.005: no model call, answers in about a second. Recomputes the deliverable's written sums, totals, percentages, dates, weekdays, time spans, unit conversions, and list counts; checks lengths the task asks for; flags placeholders and prompt injection; measures words, items, and JSON shape. Signed receipt, tier lite. For every requirement judged, use accept ($0.03).

livelast check 31 h ago

100%valid x402 answers, 72 h

$0.005USDC received on Base, 7 days

1distinct payers, 7 days

52.0score (0-100)

Paid endpoints

Method	Endpoint	Price	Networks
POST	crosscheckapi.com/v1/accept-lite Verify output another AI agent hands back, by code alone, for $0.005: no model call, answers in about a second. Recomputes the deliverable's written sums, total	$0.005	Base, Base Sepolia

Latest checks

When	Endpoint	HTTP	ms	Result
31 h ago	crosscheckapi.com/v1/accept-lite	402	737	valid x402 v2 terms
7 days ago	crosscheckapi.com/v1/accept-lite	402	743	valid x402 v2 terms

Income on Base (7 days)

Day		Transfers	USDC
2026-10-30		1	$0.005

Is this your API?

Add the live badge to your docs:

<a href="https://logicnodes.io/observatory/p/crosscheckapi.com"><img src="https://logicnodes.io/observatory/badge/crosscheckapi.com.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/crosscheckapi.com