x402 census · serp402.com · 3b4c3e065484 · JSON
POST /api/v1/search
unprobed
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…
Verdict: not verified by an unpaid GET. not probed yet. This says nothing about whether the route works when called as declared.
Facts from the catalogs
| Field | Value |
|---|---|
| URL | https://serp402.com/api/v1/search |
| Method | POST |
| Price | $0.005 USDC = 5000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 |
| Network | eip155:8453 (base); also accepts solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| payTo | 0xAA1252D726567293cffE6Ca495e32c6AEcfDC56d |
| Seller | serp402.com |
| Catalogs | cdp (row updated 2026-09-30) |
| Listed since (lower bound) | 2026-09-30 (earliest catalog timestamp; catalogs report last-update times only) |
| Last catalog update | 2026-09-30 |
| CDP quality counters | 4 calls and 2 unique payers in 30 days, last call 2026-09-30 (catalog-reported, not verified on chain) |
| Category (keyword rule) | web-search |
| Templated path | no |
| x402Version in catalog | 2 |
| Service name / tags | serp402 · search, google, serp, web-search, news |
Unpaid probe (census of )
| Field | Value |
|---|---|
| Probe | not probed in this build |
No hourly re-probe has reached this resource yet; the cron covers a rotating slice of 150 per hour.
On-chain facts for the payTo (public address)
| Field | Value |
|---|---|
| Settlement history | unresolved: payTo not seen in the payer forensics (180 wallets' outbound history) or the Blockscout sample |
Declared input and output (extensions.bazaar)
{
"input": {
"body": {
"country": "us",
"language": "en",
"num": 10,
"query": "best espresso machine 2026",
"type": "search"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"type": "json",
"example_truncated": true,
"chars": 559
}
}
Try it (unpaid: shows the 402)
curl -si -X POST 'https://serp402.com/api/v1/search' -H 'accept: application/json' -H 'content-type: application/json' --data '{}'
The catalog declares POST. A 402 answer carries the payment requirements in the JSON body and, for x402 v2, base64 in the PAYMENT-REQUIRED header. This page never sends a payment.
Paid checks (x402, USDC on Base)
GET https://bazaar.agentexchange.work/r/3b4c3e065484/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"3b4c3e065484"} places this resource at the top of the report and search pages for 30 days for $1.00, labelled. Unpaid requests answer 402 with the terms. Pricing.
Catalog references: agentic.market (CDP Bazaar front end) · this record as JSON · all resources on serp402.com.