Agent Exchange x402 census and directory

x402 census · api.duoleads.com · c65bb762f734 · JSON

GET /v1/num/radix

unprobed

Convert an integer between any two numeric bases from 2 to 36, with arbitrary precision so values far beyond 2^53 are exact. Accepts an optional sign and common prefixes (0x, 0b, 0o), validates every digit against the source base, and returns the value in the target base, in decimal, and as its bit length and digit count.

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://api.duoleads.com/v1/num/radix
MethodGET
Price$0.05 USDC = 50000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Networkeip155:8453 (base)
payTo0xCD673f7e1daD254347AEab6be0DEFe8b9C6b3A39
Sellerapi.duoleads.com
Catalogscdp (row updated 2026-09-28), payai (row updated 2026-09-29)
Listed since (lower bound)2026-09-28 (earliest catalog timestamp; catalogs report last-update times only)
Last catalog update2026-09-29
CDP quality counters1 calls and 1 unique payers in 30 days, last call 2026-09-28 (catalog-reported, not verified on chain)
Category (keyword rule)dev-tools/utilities
Templated pathno
x402Version in catalog2
Service name / tagsDuo Data Utilities · deterministic, no-api-key, num, numbers, conversion

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
Payments50
USDC volume$2.50
Median paymentn/a
First / last payment2026-09-29 / 2026-09-29
Sampler-shaped share of paymentsn/a
Payers that are not samplersn/a
Sourceblockscout-sample — newest page of inbound ERC-20 transfers only (<=50); counts are a floor, not a total
Address0xCD673f7e1daD254347AEab6be0DEFe8b9C6b3A39

Declared input and output (extensions.bazaar)

{
 "input": {
  "method": "GET",
  "queryParams": {
   "to": "10",
   "value": "0xdeadbeef"
  },
  "type": "http"
 },
 "output": {
  "type": "json",
  "example_truncated": true,
  "chars": 670
 }
}

Try it (unpaid: shows the 402)

curl -si -X GET 'https://api.duoleads.com/v1/num/radix' -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/c65bb762f734/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"c65bb762f734"} 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: PayAI listing status · agentic.market (CDP Bazaar front end) · this record as JSON · all resources on api.duoleads.com.