# Japan Corporate-Number API

> All 5.78M Japanese corporations from the National Tax Agency registry. Pay per call with USDC via the x402 protocol (HTTP 402) on Base, Polygon, or Solana. No API key, no signup: call any endpoint, read the payment instructions from the 402 response, pay, retry. Facilitator: Coinbase CDP.

## Endpoints
- POST /report ($0.25) — ONE-CALL KYB REPORT: registry record + status + kana/romaji readings + risk flags + summary
- GET /corporation/{number} ($0.005)
- POST /search ($0.005+)
- POST /verify ($0.005) — name-to-number matching with confidence
- GET /stats ($0.001)
- POST /batch

## Machine-readable docs
- [x402 manifest with schemas and examples](https://houjin.agentic-jp.com/.well-known/x402)
- [OpenAPI 3.1](https://houjin.agentic-jp.com/openapi.json)
- [Agent skill guide](https://houjin.agentic-jp.com/.well-known/skill.md)

## How to pay
Any x402 client works: @x402/fetch or @x402/axios (npm), x402 (pip), Coinbase AgentKit, `npx agentcash`. MCP server for all 7 Japan Data APIs: `npx -y @mameta/japan-data-mcp`.

## No wallet? Use the Apify Actor
- [Japan Company Lookup & KYB Report on Apify](https://apify.com/mameta/japan-company-kyb) — same registry, pay per result with a normal Apify account.

## All Japan Data APIs
- [Directory of all 8 services](https://agentic-jp.com/) · [services.json](https://agentic-jp.com/services.json)