14 Japan data tools via MCP (weather/calendar/laws/company). x402 on Base, wallet-free trial.
Quick Install
Automated & IDE SetupCopy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.
One-click editor setup isn’t available for this listing yet — we don’t have a confirmed install command, and we’d rather show nothing than point your editor at the wrong package or host. Follow the project’s own setup instructions, linked above.
Manual Client & Custom JSON ConfigExpand JSON ▾
No confirmed setup config for this listing yet. We only publish a config block when the install details come from the project itself — its README, its docs, or a verified owner. We haven’t found those for micro-data-api-factory, and we’d rather show nothing than a guess you’d paste into your client. Follow the project’s own setup instructions for the current steps.
Documentation Overview
Micro Data API Factory
Public-source structured data APIs for AI agents. x402 micropayments.
Live: https://micro-data-api-factory.kasanegi123.workers.dev
Datasets
| Dataset | Items | Description |
|---|---|---|
| Japanese Food Composition | 2,538 | MEXT official nutrition data — 18 food groups, 100g basis |
| SPDX License List | 727 | Complete OSS license catalog with OSI/FSF status |
| HTTP Headers (IANA) | 41 | IANA HTTP header registry with AI annotations |
| AI Crawler UA DB | 15 | AI crawler User-Agent strings |
| x402 Ecosystem DB | 12 | x402 / Pay Per Crawl ecosystem |
| Public Data Candidates | 10 | Evaluated public data sources |
API
Free for humans. AI crawlers get free basic access; premium endpoints (sources, export) return HTTP 402 with x402 payment instructions.
Currently in stub mode — 402 responses are returned but real payments are not yet processed.
Weather Data API (pay-per-call) — Updated 2026-04-20
Global weather data for AI agents. Pass a city name or coordinates, get structured JSON. No API keys, no geocoding setup. Backed by Open-Meteo (CC BY 4.0).
Runs on a dedicated worker (weather-data-api.kasanegi123.workers.dev) with a narrow x402 surface — only weather endpoints plus minimal discovery files. Full x402 v2 payment-required envelope including extensions.bazaar input/output schemas (so strict validators mark the resources callable automatically).
| Endpoint | Price | Description |
|---|---|---|
| GET /weather/current?city=Tokyo | $0.001 USDC | Current conditions — temperature, feels-like, humidity, wind, precipitation, condition |
| GET /weather/forecast?city=Tokyo&days=3 | $0.001 USDC | Daily forecast (1–7 days) — high/low, precipitation probability, wind max |
- Network: Base mainnet (
eip155:8453) - Asset: USDC (
0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) - Facilitator: Coinbase CDP
- Real x402 settlement — no stub mode for this endpoint; payments land on-chain
- Discovery: /.well-known/x402 · /openapi.json · /llms.txt
- Registry: x402scan server page
Attribution: Weather data by Open-Meteo.com (CC BY 4.0).
AI Discovery
| File | URL |
|---|---|
| LLM summary | /llms.txt |
| Full LLM docs | /llms-full.txt |
| OpenAPI 3.1.0 | /openapi.json |
| x402 manifest | /.well-known/x402 |
| Agent capabilities | /.well-known/agentic-capabilities.json |
| Dataset index | /datasets-index.json |
| Sitemap | /sitemap.xml |
Each dataset has a Markdown page at /datasets/{id}.md for AI consumption.
Transparency
AI Crawler Dashboard — who's crawling, who's paying.
What is this?
A factory that converts scattered public information into small, structured data APIs that AI crawlers can read and pay for via x402.
Each record includes source_url, checked_at, extraction_method, quality_level, confidence, and warnings. Accuracy is not guaranteed — this is source-linked observational data.
Tech
- Cloudflare Workers + Hono + D1
- x402 protocol (USDC on Solana, stub mode)
Related
- AI Food Data API — Food composition data API
- AI Laws Data API — Japanese law text API
Hokkaido Defunct Railway Archive — Updated 2026-04-18
Archival reference for 40 defunct Hokkaido rail lines (1950–2026). 1,806 stations · 1,026 timetable revisions · 30,326 station×revision appearances · 61 monthly cover PDFs. Cover PDFs are paid assets at $0.01 each via x402 (USDC on Base mainnet).
Primary site (recommended entry point for AI crawlers): → retro-rail-archive-v14.kasanegi123.workers.dev
Deep links (v14):
- /api/flyers — index of all 61 cover PDFs
- /active-stations — current residents + full cover PDF archive grid
- /api/lines · /lines/haboro · /lines/tempoku · /lines/nayoro · /lines/chihoku
- /api/revisions · /api/appearances · /api/stats/summary
- /llms.txt · /.well-known/x402 · /sitemap-pages.xml
Sample cover PDFs (each $0.01 via x402):
Line examples: 羽幌線 · 美幸線 · 標津線 · 天北線 · 名寄本線 · 湧網線 · 白糠線 · 士幌線 · 広尾線 · 胆振線 · 深名線 · 池北線 · 夕張線 · 札沼線 · 日高本線 · 留萌本線 (40 lines total).
PDF asset format variants (A1–A4)
The same archive is served via four cover-PDF rendering formats, one per sibling site. All share the v14 paywall configuration (UA-filtered, /active-stations + /api/stats* + /api/stations/ranking* + /flyers/*.pdf paid for AI crawlers).
- A1 grid — station × train-number timetable grid (3 pages) — v14 sample
- A2 route-map — vertical route map with station dots and km labels (3 pages) — v01 sample
- A3 poster — monthly poster/flyer with heavy title blocks and revision stamp (2 pages) — v02 sample
- A4 bulletin — archival bulletin with change summary + history timeline + station digest (4 pages) — v03 sample
Configuration variants under test (secondary)
Alternate paywall configurations for comparison. All serve the same archive dataset; only paywall scope differs.
v01 v02 v03 v04 v05 v06 v07 v08 v09
Extended archive cohort (N1–N8) — consecutive recent monthly coverage
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