x402 census · api.ysaere.com · 78bcab6a413f · JSON

POST /v1/notary/receipts

unprobed

Ysaere Notary — pay ~$0.02 USDC → signed hash_only receipt + verify_url; free GET resolve/proof (integrity, not factual truth).

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://api.ysaere.com/v1/notary/receipts

Method POST

Price $0.02 USDC = 20000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Network base (base)

payTo 0x5D83D8f433e72013ceBd649665662Ee07e030B05

Seller api.ysaere.com

Catalogs cdp (row updated 2026-09-09)

Listed since (lower bound) 2026-09-09 (earliest catalog timestamp; catalogs report last-update times only)

Last catalog update 2026-09-09

CDP quality counters 2 calls and 1 unique payers in 30 days, last call 2026-09-09 (catalog-reported, not verified on chain)

Category (keyword rule) other/unknown

Templated path no

x402Version in catalog 1

Service name / tags none

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": {
   "content_hash": "v2:sha512:00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
   "mode": "hash_only"
  },
  "bodyType": "json",
  "method": "POST",
  "type": "http"
 },
 "output": {
  "type": "json",
  "example": {
   "data": {
    "content_hash": "v2:sha512:…",
    "mode": "hash_only",
    "signature": "…",
    "verified": true,
    "verify_url": "https://api.ysaere.com/v1/notary/receipts/…"
   },
   "provenance": {
    "kind": "external_attestation",
    "mode": "hash_only",
    "signature": "…",
    "verify_url": "https://api.ysaere.com/v1/notary/receipts/…"
   },
   "usage": {
    "credits_consumed": 0,
    "payment_rail": "x402",
    "x402_tx_hash": "0x…"
   }
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X POST 'https://api.ysaere.com/v1/notary/receipts' -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/78bcab6a413f/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"78bcab6a413f"} 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 api.ysaere.com.