Discover / http-status-checker.underscoredone.com

HTTP Status Code Checker

■ Challenge detected

Give this API a list of up to 10 web addresses and it will visit each one to tell you whether it is working, broken, or redirecting visitors somewhere else. You get back the exact status number (like 200 for OK, 404 for not found, 500 for server error), whether the address redirects, and where it redirects to. Great for finding broken links, verifying website migrations, and running quick SEO audits without writing any code.

x402
Base
Solana
USDC

Listed price: $0.01
Challenge detected: 10 of the last 10 checks
Median response: 116 ms
Last checked: 17 Oct, 08:59 UTC
In our index since: 26 Sept 2026

Endpoint

curl -i https://http-status-checker.underscoredone.com/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.

POSThttps://http-status-checker.underscoredone.com/check$0.01Give this API a list of up to 10 web addresses and it will visit each one to tell you whether it is working, broken, or redirecting visitors somewhere else. You get back the exact status number (like 200 for OK, 404 for not found, 500 for server error), whether the address redirects, and where it redirects to. Great for finding broken links, verifying website migrations, and running quick SEO audits without writing any code.

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/http-status-checker.underscoredone.com

Recent checks

27 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.17 Oct 2026

All 10 checks

When (UTC)	Result	HTTP	Response
17 Oct, 08:59 UTC	Challenge detected	402	212ms
16 Oct, 04:38 UTC	Challenge detected	402	115ms
14 Oct, 19:26 UTC	Challenge detected	402	196ms
12 Oct, 22:31 UTC	Challenge detected	402	117ms
11 Oct, 00:15 UTC	Challenge detected	402	92ms
9 Oct, 18:38 UTC	Challenge detected	402	104ms
8 Oct, 15:35 UTC	Challenge detected	402	118ms
7 Oct, 09:33 UTC	Challenge detected	402	115ms
6 Oct, 09:33 UTC	Challenge detected	402	91ms
27 Sept, 17:02 UTC	Challenge detected	402	138ms

Questions

Did our last probe detect a payment challenge?

At our last probe on 17 Oct, 08:59 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 HTTP Status Code Checker?

Its listed price is $0.01.

What payment terms does HTTP Status Code Checker advertise?

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

Where is HTTP Status Code Checker listed?

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

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