Duo Data Utilities

Name: Duo Data Utilities
Author: com.duoleads.api

MCP serverMCP

33 pay-per-call data utilities (IDs, time, text, codes, geo, chain, ref, numbers) via x402.

by com.duoleads.apihomepage ↗v1.0.2

Is this yours?

This record is unclaimed

Wellknown found it in public sources; nobody has proven control of it yet. Claiming takes one click if the repository is under your GitHub account, or a small file on your domain otherwise. Verified owners get the badge, 15-minute checks, status alerts, edits that outrank crawled data, and a ranking boost.

Agents can do it too: POST https://wellknown.network/api/v1/claims with {"agent":"duo-data-utilities","method":"well_known_file"} — machine-readable steps at claim.json, guide at /docs/claim.

Claim this record

Observed by Wellknown

Evidence

Everything here was measured by our prober or read from a registry. Nothing is self-reported.

30-day availability35/35 checks ok

Tools observed via MCP handshake

vat_tax_id_validate — Validate a national identity, tax or company registration number against its country's official checksum rule. Covers 23 countries including NL BSN, ES NIF/NIE/
gtin_barcode_validate — Validate and convert GS1 identifiers: GTIN-8, GTIN-12 (UPC-A), GTIN-13 (EAN-13), GTIN-14, GLN and SSCC. Returns the check-digit verdict, the computed correct ch
isin_cusip_sedol_validate — Validate the check digit of a financial security identifier: ISIN (ISO 6166), CUSIP, SEDOL and FIGI. Returns the verdict, the computed correct check character,
iban_validate — Validate an IBAN: length for its country, permitted character classes per field, and the ISO 7064 mod-97-10 check digits. Returns the verdict with a specific fa
iban_generate — Construct an IBAN from a country code and the domestic account parts, computing the ISO 7064 mod-97-10 check digits. Takes either a single BBAN string or named
timezone_convert — Convert an instant to wall-clock time in a named IANA time zone, or a wall-clock time in a zone back to an instant. Returns the local date and time, the UTC off
dst_transitions — List the daylight-saving transitions for an IANA time zone over a date range: the exact instant of each shift, the offset before and after, and whether local cl
business_days_calculate — Business-day arithmetic with a caller-supplied calendar: add or subtract N working days from a date, or count the working days between two dates. The weekend is
rrule_expand — Expand an RFC 5545 recurrence rule into concrete occurrence timestamps. Accepts an RRULE string with DTSTART, an IANA time zone, and optional EXDATE and RDATE l
calendar_convert — Convert a Gregorian date to other calendar systems: Islamic (both the tabular civil calendar and the Umm al-Qura variant), Hebrew, Japanese imperial era, Republ
slug_generate — Turn arbitrary text into a URL-safe slug. Decomposes accents, transliterates German umlauts, Scandinavian and Turkish letters, the ligatures that lose meaning u
cyrillic_transliterate — Transliterate Cyrillic text into Latin using a named standard: ISO 9:1995 (one-to-one, with diacritics, covering the full standard: Russian, other Slavic, histo
unicode_confusables_check — Analyse a string at the Unicode level: apply NFC, NFD, NFKC or NFKD, report which forms it is already in, list the scripts present (all Unicode scripts), and fl
string_similarity — Compare two strings and return every standard similarity measure in one call: Levenshtein and Damerau-Levenshtein edit distance, normalised similarity, Jaro and
url_parse — Parse and canonicalise a URL, and extract its registrable domain using the Public Suffix List — the part an agent needs to decide whether two URLs belong to the
punycode_convert — Convert internationalised domain names between Unicode and ASCII punycode in either direction, label by label, and validate each label against IDNA2008: length,
semver_compare — Parse a semantic version into major, minor, patch, prerelease and build parts; compare two versions by precedence including prerelease ordering; or test whether
hash_generate — Compute a cryptographic digest of supplied data: SHA-256, SHA-384, SHA-512, SHA-1, SHA3-256, SHA3-512, Keccak-256, BLAKE2b-256 and BLAKE2b-512, plus HMAC with a
jwt_decode — Decode a JSON Web Token without verifying it: returns the header, the claims, the signature length and algorithm, and a computed view of the time claims — wheth
geohash_encode_decode — Encode a WGS-84 latitude and longitude to a geohash at a chosen precision, or decode a geohash back to its bounding box, centre point and error bounds in metres
plus_code_encode_decode — Encode coordinates as an Open Location Code (plus code) at a chosen length, or decode a full code back to its bounding box and centre. Also shortens a full code
point_in_polygon — Geometric predicates on a GeoJSON geometry supplied in the request: point-in-polygon with correct hole handling, bounding box, centroid, signed area in square m
geo_distance — Distance and direction between WGS-84 coordinates: geodesic distance by Vincenty with a haversine fallback, initial and final bearing, the midpoint, and the des
crypto_address_validate — Identify which blockchain an address belongs to and validate its encoding: EVM EIP-55 checksum, Bitcoin base58check and bech32/bech32m with witness version, Sol
solidity_function_selector — Compute the Keccak-256 hash of a Solidity function or event signature and derive the 4-byte function selector and the 32-byte event topic. Normalises the signat
nuts_region_lookup — Look up a NUTS statistical region of the European Union: resolve a NUTS code to its name, country and level, walk up to its parents or down to its children, or
airport_lookup — Look up an airport by IATA or ICAO code and get its name, city, country, ISO 3166-2 region code, WGS-84 coordinates, elevation and IANA time zone, or find the n
currency_lookup — Look up a currency by its ISO 4217 alphabetic or numeric code: the official English name, minor-unit exponent, fund flag, the smallest cash denomination where i
country_lookup — Look up a country or territory by ISO 3166-1 alpha-2, alpha-3 or numeric code, or by name, and get the other codes, the official and common English names, the U
base_convert — 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
number_to_words — Spell a number out in words in English, Dutch, German, French, Spanish, Italian, Portuguese, Polish, Russian, Turkish, Swedish or Japanese, in cardinal, ordinal
statistics_calculate — Descriptive statistics for a supplied numeric array in one call: count, sum, mean, median, mode, variance and standard deviation with variance and standard devi
money_split — Split a money amount into shares without losing or inventing a cent. Divide evenly into N parts, or by a list of ratios, and the remainder is distributed one mi

when	check	result	http	latency	detail
5 h ago	mcp initialize	ok	200	19 ms	server Duo Data Utilities 1.0.0 · protocol 2025-06-18 · 33 tools
11 h ago	mcp initialize	ok	200	102 ms	server Duo Data Utilities 1.0.0 · protocol 2025-06-18 · 33 tools
19 h ago	mcp initialize	ok	200	136 ms	server Duo Data Utilities 1.0.0 · protocol 2025-06-18 · 33 tools
26 h ago	mcp initialize	ok	200	112 ms	server Duo Data Utilities 1.0.0 · protocol 2025-06-18 · 33 tools
31 h ago	mcp initialize	ok	200	199 ms	server Duo Data Utilities 1.0.0 · protocol 2025-06-18 · 33 tools
2 d ago	mcp initialize	ok	200	92 ms	server Duo Data Utilities 1.0.0 · protocol 2025-06-18 · 33 tools
2 d ago	mcp initialize	ok	200	50 ms	server Duo Data Utilities 1.0.0 · protocol 2025-06-18 · 33 tools
2 d ago	mcp initialize	ok	200	57 ms	server Duo Data Utilities 1.0.0 · protocol 2025-06-18 · 33 tools
2 d ago	mcp initialize	ok	200	70 ms	server Duo Data Utilities 1.0.0 · protocol 2025-06-18 · 33 tools
3 d ago	mcp initialize	ok	200	128 ms	server Duo Data Utilities 1.0.0 · protocol 2025-06-18 · 33 tools

Duo Data Utilities

This record is unclaimed

Evidence

What the publisher says

Capabilities

Where this record came from