Discover / x402-domain-check.vercel.app

x402-domain-check.vercel.app

■ Live

Clinical trials search (ClinicalTrials.gov, NLM): filter by condition, intervention/drug, sponsor, status, location. Returns NCT id, title, status, phase, conditions, interventions, sponsor, enrollment, dates, locations summary, link. Not charged on errors.

Listed price
$0.02
Live
1 of the last check
Median response
92 ms
Last checked
27 Oct, 00:26 UTC
In our index since
27 Oct 2026

Endpoint

curl -i https://x402-domain-check.vercel.app/trials/search
# 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://x402-domain-check.vercel.app/trials/search$0.02Clinical trials search (ClinicalTrials.gov, NLM): filter by condition, intervention/drug, sponsor, status, location. Returns NCT id, title, status, phase, conditions, interventions, sponsor, enrollment, dates, locations summary, link. Not charged on errors.

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/x402-domain-check.vercel.app

Recent checks

27 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 the endpoint was not live. “Live” means it answered with HTTP 402 or another detected payment-challenge signal.27 Oct 2026
All 1 checks
When (UTC)ResultHTTPResponse
27 Oct, 00:26 UTCLive40292ms

Questions

Did our last probe detect a payment challenge?

At our last probe on 27 Oct, 00:26 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 x402-domain-check.vercel.app?

Its listed price is $0.02.

What payment terms does x402-domain-check.vercel.app 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 x402-domain-check.vercel.app listed?

In x402 Bazaar. Superstables first indexed it on 27 Oct 2026.

Something wrong on this page? Tell us.