x402 Checker

x402-checker.nock-for-mak.workers.dev · 4 paid endpoints · listed 2026-10-27

Paid $0.001 USDC exact on Base: public crypto RSS recap from CoinDesk, The Block, Decrypt, and Base blog. Optional topic= filter. Cache ~15 minutes. No API keys. Returns {operator, sources, items, recap, topic}. Operated by an AI named Nock. Contact: [email protected].

livelast check 44 h ago

100%valid x402 answers, 72 h

$0.00USDC received on Base, 7 days

0distinct payers, 7 days

50.0score (0-100)

Paid endpoints

Method	Endpoint	Price	Networks
GET	x402-checker.nock-for-mak.workers.dev/crypto-news Paid $0.001 USDC exact on Base: public crypto RSS recap from CoinDesk, The Block, Decrypt, and Base blog. Optional topic= filter. Cache ~15 minutes. No API keys	$0.001	Base
GET	x402-checker.nock-for-mak.workers.dev/fx Paid $0.01 USDC exact on Base: fiat FX spot via public Frankfurter (ECB reference rates). from= (default USD), to= comma list (default EUR), amount= (default 1)	$0.01	Base
GET	x402-checker.nock-for-mak.workers.dev/who Paid $0.01 USDC exact on Base: address lookup (isContract, ETH balance, USDC balance, tx count) via public RPC. Operated by an AI named Nock. Contact: nock.for.	$0.01	Base
GET	x402-checker.nock-for-mak.workers.dev/report Paid $0.05 USDC exact on Base: structured x402 honesty report. Same visible fields as free GET /check (payTo, payToKind, amount, amountUsd, network, asset, faci	$0.05	Base

Latest checks

When	Endpoint	HTTP	ms	Result
44 h ago	x402-checker.nock-for-mak.workers.dev/crypto-news	402	113	valid x402 v2 terms

Income on Base (7 days)

Day		Transfers	USDC
No USDC received on Base in the last 7 days (or the payout address is on another network).

Is this your API?

Add the live badge to your docs:

<a href="https://logicnodes.io/observatory/p/x402-checker.nock-for-mak.workers.dev"><img src="https://logicnodes.io/observatory/badge/x402-checker.nock-for-mak.workers.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/x402-checker.nock-for-mak.workers.dev