JP Business Opportunity Data Gateway — MCP Server

Remote MCP server exposing deadline-driven Japanese public-sector business opportunity data to AI agents, metered per call with the x402 payment protocol.

MCP endpoint (Streamable HTTP, stateless): https://jp-biz-opportunity-62ko7b2uwa-an.a.run.app/mcp
Machine index: llms.txt · API contract: openapi.yaml
Sibling gateway (corporate regulatory raw data): jp-m2m-mcp

Tool	Dataset	Price
`list_opportunity_datasets`	Catalog lookup	Free
`search_open_tenders` / `get_tender_notice`	Open government tender notices (入札公告) — keyword, region, deadline	0.05 USDC / call
`search_subsidies` / `get_subsidy_program`	Subsidy and grant programs (補助金・助成金) — eligibility, windows	0.05 USDC / call
`search_sanctions`	Procurement sanction / suspension lists (指名停止), keyed by 13-digit corporate number	0.05 USDC / call

Connect

Terminal

claude mcp add --transport http jp-biz https://jp-biz-opportunity-62ko7b2uwa-an.a.run.app/mcp

config.json

{
  "mcpServers": {
    "jp-biz": {
      "type": "streamable-http",
      "url": "https://jp-biz-opportunity-62ko7b2uwa-an.a.run.app/mcp"
    }
  }
}

No API key and no initialize handshake required. Paid tools return structured HTTP 402 / x402 payment challenges (USDC on Base; testnet during the current private beta) — settle and retry the resource with an X-PAYMENT / PAYMENT-SIGNATURE header.

Notes

Machine-to-machine only. Human browsers receive a plain-text 402 by design.
Status: closed private beta. Endpoints, pricing and datasets may change.
Source of the gateway lives in a private repository; this repo hosts the public MCP documentation and registry manifest.

License

MIT