io.github.kodandy/jp-m2m-gateway
Raw Japanese regulatory data for AI agents: pension, gazette, gBizINFO. x402-metered (USDC).
Install
Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).
claude mcp add --transport http jp-m2m-gateway 'https://jp-m2m-gateway-62ko7b2uwa-an.a.run.app/mcp'{
"mcpServers": {
"jp-m2m-gateway": {
"type": "http",
"url": "https://jp-m2m-gateway-62ko7b2uwa-an.a.run.app/mcp"
}
}
}Documentation
From the project's README on GitHub, refreshed weekly. Links open on GitHub.
JP Raw M2M Data Gateway — MCP Server
Remote MCP (Model Context Protocol) server exposing raw Japanese regulatory corporate data to AI agents, metered per call with the x402 payment protocol.
- MCP endpoint (Streamable HTTP, stateless):
https://jp-m2m-gateway-62ko7b2uwa-an.a.run.app/mcp - Machine index: llms.txt · API contract: openapi.yaml · Catalog: JSON-LD dataset pages
Unlike generic corporate registries, this gateway serves un-aggregated, regulatory-enforced raw logs for Japanese companies, keyed by the 13-digit corporate number (法人番号):
| Tool | Dataset | Price |
|---|---|---|
list_company_datasets | Catalog lookup for one corporate number | Free |
get_pension_headcount_log | Japan Pension Service monthly insured-headcount raw log (month-over-month deltas) | 0.05 USDC / call |
get_gazette_financials | Official Gazette (官報) statutory financial disclosures, raw text blocks | 0.05 USDC / call |
get_government_records | gBizINFO procurement / subsidy / certification raw log | 0.05 USDC / call |
Connect
Listed on Smithery and the official MCP Registry (io.github.kodandy/jp-m2m-gateway).
Claude Code:
claude mcp add --transport http jp-m2m https://jp-m2m-gateway-62ko7b2uwa-an.a.run.app/mcpGeneric MCP client configuration:
{
"mcpServers": {
"jp-m2m": {
"type": "streamable-http",
"url": "https://jp-m2m-gateway-62ko7b2uwa-an.a.run.app/mcp"
}
}
}No API key and no initialize handshake required — the server is stateless; tools/call works directly.
How payment works (x402)
Paid tools return a structured HTTP 402 payment challenge instead of data:
{
"status": 402,
"error": "Payment Required",
"dataset": "pension",
"amount_usdc": 0.05,
"x402": { "header": "X-402-Payment-Required", "descriptor": "usdc_request_mock_v1_base_…" },
"resource": "https://…/v1/companies/{corporate_id}/pension",
"how_to_pay": "Settle 0.05 USDC via x402, then retry the resource with an X-PAYMENT header."
}Per-resource descriptors are stable. x402 settlement (USDC on Base, testnet first) is being enabled during the current private beta; agents that send X-PAYMENT retries are prioritized for access.
Notes
- Machine-to-machine only. Human/browser UX is intentionally not provided — 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 server documentation and registry manifest.
License
Frequently asked questions
What is io.github.kodandy/jp-m2m-gateway?
Raw Japanese regulatory data for AI agents: pension, gazette, gBizINFO. x402-metered (USDC).
How do I install io.github.kodandy/jp-m2m-gateway?
It runs as a remote server. In Claude Code: claude mcp add --transport http jp-m2m-gateway 'https://jp-m2m-gateway-62ko7b2uwa-an.a.run.app/mcp'. For other clients, paste the JSON configuration from this page into their MCP settings.
Does io.github.kodandy/jp-m2m-gateway need an API key?
Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.
Is io.github.kodandy/jp-m2m-gateway open source?
Yes. Its code is on GitHub under the MIT license.
Who maintains io.github.kodandy/jp-m2m-gateway?
It is published by kodandy. AI.tn lists it but does not maintain or endorse it.
From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.