Discover / serp402.com

serp402

■ Challenge detected

Google search for agents, paid per call: web, news, images, videos, places, shopping and Scholar, all returned in one shape with canonicalised URLs, duplicates removed and dates normalised to ISO. Direct answers and knowledge-panel facts included when Google has them. USD 0.005 per call in USDC — no API key, no account, no subscription, no minimum. Results are retrieved through Serper (serper.dev), which is not affiliated with or endorsed by Google.

x402
Base
Solana
USDC
Data

Listed price: $0.005
Challenge detected: 9 of the last 9 checks
Median response: 107 ms
Last checked: 16 Oct, 13:59 UTC
In our index since: 30 Sept 2026

Endpoint

curl -i https://serp402.com/api/v1/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.

POSThttps://serp402.com/api/v1/search$0.005Google search for agents, paid per call: web, news, images, videos, places, shopping and Scholar, all returned in one shape with canonicalised URLs, duplicates removed and dates normalised to ISO. Direct answers and knowledge-panel facts included when Google has them. USD 0.005 per call in USDC — no API key, no account, no subscription, no minimum. Results are retrieved through Serper (serper.dev), which is not affiliated with or endorsed by Google.

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/serp402.com

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.16 Oct 2026

All 9 checks

When (UTC)	Result	HTTP	Response
16 Oct, 13:59 UTC	Challenge detected	402	100ms
15 Oct, 08:20 UTC	Challenge detected	402	114ms
13 Oct, 22:50 UTC	Challenge detected	402	107ms
11 Oct, 22:04 UTC	Challenge detected	402	1037ms
10 Oct, 06:39 UTC	Challenge detected	402	93ms
9 Oct, 03:33 UTC	Challenge detected	402	147ms
7 Oct, 21:31 UTC	Challenge detected	402	1064ms
6 Oct, 18:37 UTC	Challenge detected	402	99ms
30 Sept, 17:04 UTC	Challenge detected	402	89ms

Questions

Did our last probe detect a payment challenge?

At our last probe on 16 Oct, 13:59 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 serp402?

Its listed price is $0.005.

What payment terms does serp402 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 serp402 listed?

In x402 Bazaar and x402-list.com. Superstables first indexed it on 30 Sept 2026.

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