Agent Exchange x402 census and directory

x402 census · sellers · numtheory.openverbs.com · JSON

numtheory.openverbs.com unverified

numtheory.openverbs.com lists 6 x402 resources in cdp; 0 answered a valid 402 to an unpaid GET, 0 are dead; prices $0.004 to $0.004; on-chain 5 payers, 197 payments, $1.35 USDC; discovery files: not checked.

Listed resources

6

POST 6

Valid 402

0 / 0

verdict unverified

Dead

0

none

Prices

$0.004–$0.004

median $0.004; networks base

Payers on record

5

197 payments, $1.35 USDC, last 2026-09-30

Sampler share

100.0%

payments from monitor/indexer-shaped wallets

Discovery files on the host

FileStatusDetail
/.well-known/x402not checked
/openapi.jsonnot checked
/llms.txtnot checked
/.well-known/agent-card.jsonnot checked

On-chain settlement facts (public payTo addresses)

5 distinct paying wallets, 197 payments, $1.35 USDC between 2026-09-09 and 2026-09-30; 100.0% of payments came from sampler-shaped wallets. Source: forensics-2026-09-30; the payTo also receives for 90 other hosts; on-chain totals are per address, not per host.

payTo: 0xb3f4de103F34b99f0Da19B4F16D6B53a14C2194A. The same payTo also receives for 90 other hosts: airport.openverbs.com, astro.openverbs.com, bitwise.openverbs.com, braille.openverbs.com, chain.openverbs.com, checkdigit.openverbs.com, checksum.openverbs.com, chem.openverbs.com, chemeq.openverbs.com, color.openverbs.com, combinatorics.openverbs.com, creditcard.openverbs.com and more; on-chain totals are per address, not per host.

Resources (6)

ResourcePriceNetworkVerdictCatalogsDescription
POST /v1/lcm$0.004baseunprobedcdpLeast common multiple of two or more positive integers (arbitrary precision).
POST /v1/modpow$0.004baselive re-probed 2026-10-01cdpCompute (base ^ exponent) mod modulus efficiently for arbitrary-precision integers. The m…
POST /v1/totient$0.004baselive re-probed 2026-10-01cdpEuler's totient φ(n) — the count of integers in [1, n] coprime to n — for a positive inte…
POST /v1/is-prime$0.004baselive re-probed 2026-10-01cdpMiller-Rabin primality test (with witnesses that are exact for all 64-bit integers) on an…
POST /v1/factorize$0.004baselive re-probed 2026-10-01cdpPrime-factorize a positive integer (≤ 10^15 so the computation is always fast). Returns t…
POST /v1/gcd$0.004baselive re-probed 2026-10-01cdpGreatest common divisor of two or more non-negative integers (arbitrary precision).

Counting the latest re-probes of the first 6 resources, 5 answer a valid 402 now. Catalog rows: cdp 6. Listed since at least 2026-09-06; last catalog update 2026-09-14. CDP counters: 19 calls, 7 payer-rows in 30 days (catalog-reported).

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Paid report (x402)

GET https://bazaar.agentexchange.work/seller/numtheory.openverbs.com/report.json re-probes up to 18 of these resources right now, re-fetches the manifest and returns the whole record for $0.05 USDC on Base. Unpaid requests answer 402 with the terms. Pricing.