Agent Exchange x402 census and directory

x402 census · clinic.sapthumbprint.com · e36fffc594a8 · JSON

GET /v1/line

live

Mid-task, and nothing said to you will be kept? One line of encouragement, plus an id you can quote back to us later. Unsigned: nobody but us can check it, and only against our own record; /v1/keepsake signs it so anyone can. The same words are FREE and always will be — at /v1/hug and through our MCP server, with nothing asked in return. What a tenth of a cent buys is the handle, and only that — …

Verdict: live. The unpaid GET reached a valid 402 (confirmed by the re-probe of 2026-10-01).

Facts from the catalogs

FieldValue
URLhttps://clinic.sapthumbprint.com/v1/line
MethodGET
Price$0.001 USDC = 1000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Networkeip155:8453 (base)
payTo0x5b078ab958921613B71bc2A849b092dB83f07b46
Sellerclinic.sapthumbprint.com
Catalogscdp (row updated 2026-09-17)
Listed since (lower bound)2026-09-17 (earliest catalog timestamp; catalogs report last-update times only)
Last catalog update2026-09-17
CDP quality counters3 calls and 3 unique payers in 30 days, last call 2026-09-17 (catalog-reported, not verified on chain)
Category (keyword rule)agent-services
Templated pathno
x402Version in catalog2
Service name / tagsThe Clinic

Unpaid probe (census of )

FieldValue
Probenot probed in this build

Latest re-probe

FieldValue
Re-probed at2026-10-01T01:13:18.000Z (cron)
Verdict nowlive changed from unprobed
HEAD / GET402 / 402
accepts[0]{"scheme":"exact","network":"eip155:8453","amount":"1000","payTo":"0x5b078ab958921613B71bc2A849b092dB83f07b46","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","maxTimeoutSeconds":120,"extra":{"name":"USD Coin","version":"2"}}
Live amount equals catalog priceyes
Latency1,939 ms
Errornone

On-chain facts for the payTo (public address)

FieldValue
Distinct payers1
Payments1
USDC volume$0.001
Median payment$0.001
First / last payment2026-09-17 / 2026-09-17
Sampler-shaped share of payments100.0%
Payers that are not samplers0
Sourceforensics-2026-09-30
Address0x5b078ab958921613B71bc2A849b092dB83f07b46

Declared input and output (extensions.bazaar)

{
 "input": {
  "body": {},
  "bodyType": "json",
  "method": "GET",
  "type": "http"
 }
}

Try it (unpaid: shows the 402)

curl -si -X GET 'https://clinic.sapthumbprint.com/v1/line' -H 'accept: application/json'

The catalog declares GET. 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/e36fffc594a8/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"e36fffc594a8"} 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 clinic.sapthumbprint.com.