Agent Exchange x402 census and directory

x402 census · oraclepost.higgsfield.app · 97a3cdb41958 · JSON

GET /api/premium/balance

unprobed

ETH and USDC balance of any address on Base, read live from the chain (eth_getBalance + USDC balanceOf) at request time. Pass ?address=0x... . Returns raw and decimal values plus the block number the read was made at. No third-party API, no cache.

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

FieldValue
URLhttps://oraclepost.higgsfield.app/api/premium/balance
MethodGET
Price$0.02 USDC = 20000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Networkeip155:8453 (base)
payTo0x72DF68E7b3e1E2FcFbaeDc7183810b92CB6ddBd7
Selleroraclepost.higgsfield.app
Catalogscdp (row updated 2026-09-16)
Listed since (lower bound)2026-09-16 (earliest catalog timestamp; catalogs report last-update times only)
Last catalog update2026-09-16
CDP quality counters1 calls and 1 unique payers in 30 days, last call 2026-09-16 (catalog-reported, not verified on chain)
Category (keyword rule)chain-rpc
Templated pathno
x402Version in catalog2
Service name / tags · balance, wallet, usdc, base, onchain

Unpaid probe (census of )

FieldValue
Probenot 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)

FieldValue
Distinct payers1
Payments1
USDC volume$0.02
Median payment$0.02
First / last payment2026-09-16 / 2026-09-16
Sampler-shaped share of payments100.0%
Payers that are not samplers0
Sourceforensics-2026-09-30
Address0x72DF68E7b3e1E2FcFbaeDc7183810b92CB6ddBd7

Declared input and output (extensions.bazaar)

{
 "input": {
  "method": "GET",
  "queryParams": {
   "address": "EVM address on Base, 0x-prefixed, 40 hex chars"
  },
  "type": "http"
 },
 "output": {
  "type": "json",
  "example": {
   "address": "0xe3Badbd4f38214b9Eae528a1a5398f6678f63fB3",
   "block": 51234567,
   "eth": 0,
   "eth_wei": "0",
   "network": "eip155:8453",
   "usdc": 9.8973,
   "usdc_raw": "9897300"
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X GET 'https://oraclepost.higgsfield.app/api/premium/balance' -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/97a3cdb41958/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"97a3cdb41958"} 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 oraclepost.higgsfield.app.