Discover / seenly-payload-check.vercel.app

Payload Check

■ Challenge detected

Payload Check: data-quality filter for agents. Send any payload (tool/API output, scraped page, LLM answer, generated code, JSON, CSV) and get a 0-100 quality score, pass/warn/fail, tags and concrete issues: invalid or truncated JSON (with auto-repair), JSON Schema mismatches, syntax errors, bot-challenge/captcha/404 scrapes, LLM refusals, placeholders, repetition loops, mojibake. Deterministic, no LLM, payload not stored.

x402
Base
USDC

Listed price: $0.01
Challenge detected: 6 of the last 6 checks
Median response: 108 ms
Last checked: 17 Oct, 07:50 UTC
In our index since: 9 Oct 2026

Endpoint

curl -i https://seenly-payload-check.vercel.app/api/check
# 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.

GEThttps://seenly-payload-check.vercel.app/api/check$0.01Payload Check: data-quality filter for agents. Send any payload (tool/API output, scraped page, LLM answer, generated code, JSON, CSV) and get a 0-100 quality score, pass/warn/fail, tags and concrete issues: invalid or truncated JSON (with auto-repair), JSON Schema mismatches, syntax errors, bot-challenge/captcha/404 scrapes, LLM refusals, placeholders, repetition loops, mojibake. Deterministic, no LLM, payload not stored.

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/seenly-payload-check.vercel.app

Recent checks

9 Oct 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.17 Oct 2026

All 6 checks

When (UTC)	Result	HTTP	Response
17 Oct, 07:50 UTC	Challenge detected	402	117ms
15 Oct, 23:42 UTC	Challenge detected	402	84ms
14 Oct, 19:26 UTC	Challenge detected	402	276ms
12 Oct, 15:35 UTC	Challenge detected	402	99ms
11 Oct, 00:15 UTC	Challenge detected	402	116ms
9 Oct, 18:38 UTC	Challenge detected	402	76ms

Questions

Did our last probe detect a payment challenge?

At our last probe on 17 Oct, 07:50 UTC, it returned HTTP 402 or another detected payment-challenge signal. This check did not test payment, delivery or compatibility with the Superstables client.

What price is recorded for Payload Check?

Its listed price is $0.01.

What payment terms does Payload Check 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 Payload Check listed?

In x402 Bazaar. Superstables first indexed it on 9 Oct 2026.

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