x-preflight

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

X Preflight: read a draft post against X's open-sourced ranking code. Returns what is already settled before you post, whether it enters the pool strangers are drawn from, how long it stays retrievable, which filters delete it, and which gates nobody can know in advance. Every claim cites a file and line in X's published source. Never writes the post. Nothing stored.

livelast check 28 h ago

100%valid x402 answers, 72 h

$0.01USDC received on Base, 7 days

1distinct payers, 7 days

52.0score (0-100)

Paid endpoints

Method	Endpoint	Price	Networks
POST	kevinhoff.com/api/paid/grade X Preflight: read a draft post against X's open-sourced ranking code. Returns what is already settled before you post, whether it enters the pool strangers are	$0.01	Base

Latest checks

When	Endpoint	HTTP	ms	Result
28 h ago	kevinhoff.com/api/paid/grade	402	297	valid x402 v2 terms
7 days ago	kevinhoff.com/api/paid/grade	402	2264	valid x402 v2 terms

Income on Base (7 days)

Day		Transfers	USDC
2026-10-31		1	$0.01

Is this your API?

Add the live badge to your docs:

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