A focused collection of Japan-specific data endpoints wrapped in an MCP interface. You get weather lookups via Open-Meteo, a railway archive with 1,800+ defunct Hokkaido stations, Japanese food composition tables from MEXT, SPDX license data, and HTTP header registries. Most queries are free for human use. AI crawler access to premium endpoints triggers x402 micropayments on Base (USDC), with weather calls priced at $0.001 and archived railway PDFs at $0.01 each. The server runs on Cloudflare Workers and exposes structured JSON through streamable HTTP transport. Useful if you're building agents that need Japanese public datasets or want to experiment with pay-per-call API models without managing API keys.
claude mcp add --transport http io.github.matsushitatokitsugu-micro-data-api-factory https://mcp-data-gateway.kasanegi123.workers.dev/mcp