Unclaimed

7 APIs · 30 endpoints · Base network · x402 protocol

Live APIs

Japan Corporate-Number (法人番号) API

Look up, search, and name-match Japanese corporations against the official 国税庁 (National Tax Agency) corporate-number registry. x402-enabled for AI agents doing KYC, vendor reconciliation (名寄せ), invoice verification, or company research in Japan. Data: x402-list.com (CC BY 4.0)

5 endpoints · $0.001–$0.25

Japan Holiday & Business-Day API

Japanese public holidays, holiday lookup, and business-day calculation (skip weekends + national holidays). x402-enabled for AI agents that schedule, bill, or plan around the Japanese calendar. Data: x402-list.com (CC BY 4.0)

4 endpoints · $0.0032–$0.005

Japan Weather Forecast & Warnings API

Japanese weather forecasts, meteorological warnings/advisories, and weather discussions, sourced live from 気象庁 (Japan Meteorological Agency). x402-enabled for AI agents that plan travel, logistics, events, or alerts around Japanese weather. Data: x402-list.com (CC BY 4.0)

2 endpoints · $0.001–$0.0032

Japan Diet API

Japanese Diet members and full-text minutes search over the official National Diet Library archive. x402-enabled for AI agents. Data: x402-list.com (CC BY 4.0)

3 endpoints · $0.004–$0.012

Japan Address API

Normalize, geocode, and parse Japanese addresses. x402-enabled for AI agents. Data: x402-list.com (CC BY 4.0)

5 endpoints · $0.004–$0.005

Japan Transit API

Real-time train delays + delay-aware alternative routes for Japan rail. x402-enabled for AI agents. Data: x402-list.com (CC BY 4.0)

5 endpoints · $0.001–$0.015

Japan Furigana API

Japanese text utilities: furigana, normalization, multi-reading names, classification. x402-enabled for AI agents. Data: x402-list.com (CC BY 4.0)

6 endpoints · $0.001–$0.005

About Unclaimed on PayAPI Market

Live APIs: 7
Endpoints: 30
Settlement-verified APIs: 0 of 7
Categories: Tools (4), Data (2), Verification (1)
Hosted at: address.agentic-jp.com, diet.agentic-jp.com, furigana.agentic-jp.com, holiday.agentic-jp.com, houjin.agentic-jp.com and 2 more
First listed on PayAPI Market: 2026-10-30

Questions about this provider

What APIs does Unclaimed offer?

Unclaimed has 7 live APIs on PayAPI Market with 30 endpoints in total, in Tools, Data, Verification: Japan Corporate-Number (法人番号) API, Japan Holiday & Business-Day API, Japan Weather Forecast & Warnings API, Japan Diet API, Japan Address API, and 2 more.

Are Unclaimed's APIs verified?

Not yet. Unclaimed's listings are live and answer an x402 payment challenge, but PayAPI Market has not paid for a call to them, so none carries a settlement-verified badge.

How do I pay for Unclaimed's APIs?

Per request, in USDC, over the x402 protocol. An agent calls the endpoint, receives HTTP 402 with the price and wallet, pays and retries. There is no API key, account or subscription, and Unclaimed keeps 100% of each payment.

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