x402 census · sellers · api.duoleads.com · JSON
api.duoleads.com unverified
api.duoleads.com lists 33 x402 resources in cdp, payai; 0 answered a valid 402 to an unpaid GET, 0 are dead; prices $0.05 to $0.05; on-chain 1 payers, 50 payments, $2.50 USDC; discovery files: manifest, agent_card, llms, openapi.
Listed resources
33
GET 33
Valid 402
0 / 0
verdict unverified
Dead
0
none
Prices
$0.05–$0.05
median $0.05; networks base
Payers on record
1
50 payments, $2.50 USDC, last 2026-09-29
Sampler share
n/a
payments from monitor/indexer-shaped wallets
Discovery files on the host (checked 2026-09-30)
| File | Status | Detail |
|---|---|---|
| /.well-known/x402 | present | string-list, 33 entries |
| /openapi.json | present | 33 paths, 33 operations with x-payment-info, 33 declare a 402 response |
| /llms.txt | present | 8,735 bytes, mentions x402 |
| /.well-known/agent-card.json | present | Duo Data Utilities, 33 skills |
On-chain settlement facts (public payTo addresses)
1 distinct paying wallets, 50 payments, $2.50 USDC between 2026-09-29 and 2026-09-29. Source: blockscout-sample.
payTo: 0xCD673f7e1daD254347AEab6be0DEFe8b9C6b3A39
Resources (33)
| Resource | Price | Network | Verdict | Catalogs | Description |
|---|---|---|---|---|---|
| GET /v1/id/iban | $0.05 | base | unprobed | cdp, payai | Validate an IBAN: length for its country, permitted character classes per field, and the … |
| GET /v1/num/words | $0.05 | base | unprobed | cdp, payai | Spell a number out in words in English, Dutch, German, French, Spanish, Italian, Portugue… |
| GET /v1/id/iban-build | $0.05 | base | unprobed | cdp, payai | Construct an IBAN from a country code and the domestic account parts, computing the ISO 7… |
| GET /v1/num/allocate | $0.05 | base | unprobed | cdp, payai | Split a money amount into shares without losing or inventing a cent. Divide evenly into N… |
| GET /v1/num/stats | $0.05 | base | unprobed | cdp, payai | Descriptive statistics for a supplied numeric array in one call: count, sum, mean, median… |
| GET /v1/num/radix | $0.05 | base | unprobed | cdp, payai | Convert an integer between any two numeric bases from 2 to 36, with arbitrary precision s… |
| GET /v1/ref/country | $0.05 | base | unprobed | cdp, payai | Look up a country or territory by ISO 3166-1 alpha-2, alpha-3 or numeric code, or by name… |
| GET /v1/ref/currency | $0.05 | base | unprobed | cdp, payai | Look up a currency by ISO 4217 code: its alphabetic and numeric codes, English name, mino… |
| GET /v1/ref/airport | $0.05 | base | unprobed | cdp, payai | Look up an airport by IATA or ICAO code and get its name, city, country, ISO 3166-2 regio… |
| GET /v1/ref/nuts | $0.05 | base | unprobed | cdp, payai | Look up a NUTS statistical region of the European Union: resolve a NUTS code to its name,… |
| GET /v1/chain/selector | $0.05 | base | unprobed | cdp, payai | Compute the Keccak-256 hash of a Solidity function or event signature and derive the 4-by… |
| GET /v1/chain/address | $0.05 | base | unprobed | cdp, payai | Identify which blockchain an address belongs to and validate its encoding: EVM EIP-55 che… |
| GET /v1/geo/distance | $0.05 | base | unprobed | cdp, payai | Distance and direction between WGS-84 coordinates: geodesic distance by Vincenty with a h… |
| GET /v1/geo/polygon | $0.05 | base | unprobed | cdp, payai | Geometric predicates on a GeoJSON geometry supplied in the request: point-in-polygon with… |
| GET /v1/geo/pluscode | $0.05 | base | unprobed | cdp, payai | Encode coordinates as an Open Location Code (plus code) at a chosen length, or decode a f… |
| GET /v1/geo/geohash | $0.05 | base | unprobed | cdp, payai | Encode a WGS-84 latitude and longitude to a geohash at a chosen precision, or decode a ge… |
| GET /v1/code/jwt | $0.05 | base | unprobed | cdp, payai | Decode a JSON Web Token without verifying it: returns the header, the claims, the signatu… |
| GET /v1/code/hash | $0.05 | base | unprobed | cdp, payai | Compute a cryptographic digest of supplied data: SHA-256, SHA-384, SHA-512, SHA-1, SHA3-2… |
| GET /v1/code/semver | $0.05 | base | unprobed | cdp, payai | Parse a semantic version into major, minor, patch, prerelease and build parts; compare tw… |
| GET /v1/code/idn | $0.05 | base | unprobed | cdp, payai | Convert internationalised domain names between Unicode and ASCII punycode in either direc… |
| GET /v1/code/url | $0.05 | base | unprobed | cdp, payai | Parse and canonicalise a URL, and extract its registrable domain using the Public Suffix … |
| GET /v1/text/similarity | $0.05 | base | unprobed | cdp, payai | Compare two strings and return every standard similarity measure in one call: Levenshtein… |
| GET /v1/text/unicode | $0.05 | base | unprobed | cdp, payai | Analyse a string at the Unicode level: apply NFC, NFD, NFKC or NFKD normalisation, report… |
| GET /v1/text/transliterate | $0.05 | base | unprobed | cdp, payai | Transliterate Cyrillic text into Latin using a named standard: ISO 9:1995 (one-to-one, wi… |
| GET /v1/text/slug | $0.05 | base | unprobed | cdp, payai | Turn arbitrary text into a URL-safe slug. Decomposes accents, transliterates German umlau… |
| GET /v1/time/calendar | $0.05 | base | unprobed | cdp, payai | Convert a Gregorian date to other calendar systems and back: Islamic (both the tabular ci… |
| GET /v1/time/rrule | $0.05 | base | unprobed | cdp, payai | Expand an RFC 5545 recurrence rule into concrete occurrence timestamps. Accepts an RRULE … |
| GET /v1/time/business-days | $0.05 | base | unprobed | cdp, payai | Business-day arithmetic with a caller-supplied calendar: add or subtract N working days f… |
| GET /v1/time/dst | $0.05 | base | unprobed | cdp, payai | List the daylight-saving transitions for an IANA time zone over a date range: the exact i… |
| GET /v1/time/zone | $0.05 | base | unprobed | cdp, payai | Convert an instant to wall-clock time in a named IANA time zone, or a wall-clock time in … |
| GET /v1/id/security | $0.05 | base | unprobed | cdp, payai | Validate the check digit of a financial security identifier: ISIN (ISO 6166), CUSIP, SEDO… |
| GET /v1/id/gs1 | $0.05 | base | unprobed | cdp, payai | Validate and convert GS1 identifiers: GTIN-8, GTIN-12 (UPC-A), GTIN-13 (EAN-13), GTIN-14,… |
| GET /v1/id/national | $0.05 | base | unprobed | cdp, payai | Validate a national identity, tax or company registration number against its country's of… |
Catalog rows: cdp 33, payai 33. Listed since at least 2026-09-28; last catalog update 2026-09-29. CDP counters: 50 calls, 33 payer-rows in 30 days (catalog-reported).
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Paid report (x402)
GET https://bazaar.agentexchange.work/seller/api.duoleads.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.