Discover / payee.schemasure.com

PayeeGuard

□ No challenge detected

Pre-flight a Base payment destination before you send. Verifies the EIP-55 checksum, measures distance from an address you expect — catching a mistyped digit and the shared prefix-and-suffix shape of a ground look-alike — flags the zero address, burn sinks and precompiles, refuses a token offered as its own payee, and reports whether the destination can receive the asset. Returns unknown rather than guessing when bytecode does not decide it. Not a judgement of the counterparty.

x402
Base
USDC

Listed price: $0.02
Challenge detected: 0 of the last 9 checks
Last checked: 16 Oct, 18:49 UTC
In our index since: 26 Sept 2026

Endpoint

curl -i https://payee.schemasure.com/v1/guard/payee
# 402 Payment Required: pay with an x402 client (USDC on Base),
# then send the same request again with the payment attached.

1 listed endpoints · on x402 Bazaar

Checks and payment terms on this page refer to the endpoint above. Other listed endpoints have not been checked individually.

POSThttps://payee.schemasure.com/v1/guard/payee$0.02Pre-flight a Base payment destination before you send. Verifies the EIP-55 checksum, measures distance from an address you expect — catching a mistyped digit and the shared prefix-and-suffix shape of a ground look-alike — flags the zero address, burn sinks and precompiles, refuses a token offered as its own payee, and reports whether the destination can receive the asset. Returns unknown rather than guessing when bytecode does not decide it. Not a judgement of the counterparty.

A dash means the listing gives no price or method. Copy buttons copy the full URL.

Showing 1 of 1 listed endpoints.

Agents can find it through the Superstables MCP server and JSON API: GET /api/v1/services/payee.schemasure.com

Recent checks

28 Sept 2026One bar per check, showing up to 20 recent checks. Coloured bars show relative response time, with a minimum visible height; full-height grey bars mean no challenge was detected. “Challenge detected” means HTTP 402 or another detected payment-challenge signal.16 Oct 2026

All 9 checks

When (UTC)	Result	HTTP	Response
16 Oct, 18:49 UTC	No challenge detected	404	198ms
15 Oct, 08:20 UTC	No challenge detected	404	208ms
13 Oct, 20:45 UTC	No challenge detected	404	221ms
11 Oct, 19:34 UTC	No challenge detected	404	156ms
10 Oct, 03:32 UTC	No challenge detected	404	275ms
8 Oct, 21:32 UTC	No challenge detected	404	185ms
7 Oct, 15:42 UTC	No challenge detected	404	174ms
6 Oct, 15:31 UTC	No challenge detected	404	181ms
28 Sept, 05:02 UTC	No challenge detected	404	123ms

Questions

Did our last probe detect a payment challenge?

No. At our last probe on 16 Oct, 18:49 UTC, we detected no payment challenge.

What price is recorded for PayeeGuard?

Its listed price is $0.02.

What payment terms does PayeeGuard advertise?

The listing advertises x402, Base and USDC. It names cdp as its facilitator. Check the seller's current payment challenge and authentication requirements before paying.

Where is PayeeGuard listed?

In x402 Bazaar. Superstables first indexed it on 26 Sept 2026.

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