x402 census · dt0ur.online · 5ae04ea1cba5 · JSON

POST /api/onchain/allowance

unprobed

Check an ERC-20 token approval on base, ethereum, arbitrum, optimism, polygon, bsc: how much a spender (router, Permit2, contract) may move from an owner's wallet, whether the approval is unlimited, and whether it covers the owner's full balance.

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://dt0ur.online/api/onchain/allowance

Method POST

Price $0.01 USDC = 10000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Network eip155:8453 (base); also accepts solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp

payTo 0x7f520c845d5Dc5e51a27699A1f098dc13Aa789b7

Seller dt0ur.online

Catalogs cdp (row updated 2026-09-28)

Listed since (lower bound) 2026-09-28 (earliest catalog timestamp; catalogs report last-update times only)

Last catalog update 2026-09-28

CDP quality counters 3 calls and 2 unique payers in 30 days, last call 2026-09-28 (catalog-reported, not verified on chain)

Category (keyword rule) chain-rpc

Templated path no

x402Version in catalog 2

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

Distinct payers 1

Payments 1

USDC volume $0.01

Median payment $0.01

First / last payment 2026-09-30 / 2026-09-30

Sampler-shaped share of payments 100.0%

Payers that are not samplers 0

Source forensics-2026-09-30

Address 0x7f520c845d5Dc5e51a27699A1f098dc13Aa789b7

Declared input and output (extensions.bazaar)

{
 "input": {
  "body": {
   "chain": "base",
   "owner": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
   "spender": "0x000000000022D473030F116dDEE9F6B43aC78BA3",
   "token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
  },
  "bodyType": "json",
  "method": "POST",
  "type": "http"
 },
 "output": {
  "type": "json",
  "example": {
   "allowance": 0,
   "allowance_raw": "0",
   "can_spend_full_balance": false,
   "chain": "base",
   "is_unlimited": false,
   "owner": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
   "owner_balance": 43.286078,
   "spender": "0x000000000022D473030F116dDEE9F6B43aC78BA3",
   "symbol": "USDC",
   "token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X POST 'https://dt0ur.online/api/onchain/allowance' -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/5ae04ea1cba5/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"5ae04ea1cba5"} 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 dt0ur.online.