Discover / x402payswap.vercel.app

x402payswap.vercel.app

■ Challenge detected

Premium alpha — Curated on-chain alpha: yield venues, mempool anomalies, and replayable agent trade intents.

x402
Base
USDC

Listed price: $0.01
Challenge detected: 10 of the last 10 checks
Median response: 554 ms
Last checked: 17 Oct, 09:26 UTC
In our index since: 26 Sept 2026

Endpoint

curl -i https://x402payswap.vercel.app/api/premium
# 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://x402payswap.vercel.app/api/premium$0.01Premium alpha — Curated on-chain alpha: yield venues, mempool anomalies, and replayable agent trade intents.

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/x402payswap.vercel.app

Recent checks

30 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, 09:26 UTC	Challenge detected	402	945ms
16 Oct, 11:31 UTC	Challenge detected	402	1047ms
14 Oct, 23:56 UTC	Challenge detected	402	163ms
13 Oct, 20:45 UTC	Challenge detected	402	1147ms
11 Oct, 19:34 UTC	Challenge detected	402	116ms
10 Oct, 03:32 UTC	Challenge detected	402	1056ms
9 Oct, 00:47 UTC	Challenge detected	402	94ms
7 Oct, 21:31 UTC	Challenge detected	402	1036ms
6 Oct, 18:37 UTC	Challenge detected	402	117ms
30 Sept, 17:04 UTC	Challenge detected	402	53ms

Questions

Did our last probe detect a payment challenge?

At our last probe on 17 Oct, 09:26 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 x402payswap.vercel.app?

Its listed price is $0.01.

What payment terms does x402payswap.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 x402payswap.vercel.app listed?

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

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