Kaisha — Japan Company Registry

by Kaishalivefrom $0.002 /call

Pay-per-call API and MCP server for Japan's official NTA corporate registry: 5.76M corporations and 5.05M invoice registrations, monthly-refreshed. Endpoints for company lookup, invoice verification, business-day calendars, and daily change events. $0.002–$0.01 USDC on Base or Solana.

TOOLS · 3

#TOOLDESCRIPTIONPRICE/CALL

01GET /invoice/verifydocsValidate a Japanese qualified invoice registration number against the NTA database.$0.01

02GET /resolvedocsCompany lookup by name or corporate number.$0.005

03GET /companies/eventsdocsDaily feed of new registrations, closures, and changes.$0.01

Prices set by the provider and charged per successful call.

CONNECT

# Inspect the unpaid MCP/x402 requirement with a valid initialize request.
curl -i --request POST 'https://kaisha-api.hp-vladic.workers.dev' \
  --header 'Content-Type: application/json' \
  --header 'Accept: application/json, text/event-stream' \
  --data '{"jsonrpc":"2.0","id":1,"method":"initialize","params":{"protocolVersion":"2025-03-26","capabilities":{},"clientInfo":{"name":"toll402-check","version":"1.0.0"}}}'

Keep EVM_PRIVATE_KEY server-side and use a narrowly funded wallet.official MCP + x402 guide ↗