{
  "markdown": "# @localgov-jp/mcp-server\n\nModel Context Protocol (MCP) server for [**LocalGov.jp**](https://localgov.jp/) — Japan's central + municipal subsidies, structured for AI agents.\n\nLocalGov.jp covers **20,000+ subsidies across 1,627 municipalities** (target 1,718). Of those, **20,810 are municipal grants that are not exposed by the J-Grants public API** — that is the differentiator vs Digital Agency's official J-Grants MCP, which surfaces central + prefectural records only.\n\nThis server exposes 8 tools to MCP clients (Claude Desktop, Cursor, Cline, Windsurf, etc.).\n\n## Tools\n\n| # | Tool | Cost | Purpose |\n|---|---|---|---|\n| 1 | `search_subsidies` | free | Search by keyword / prefecture / municipality / category / amount |\n| 2 | `get_subsidy_detail` | free | Single record with citation anchor |\n| 3 | `get_municipality_grants` | free | All subsidies for one JIS code (1,627 municipalities covered) |\n| 4 | `find_supplementary_grants` | free | Find municipal \"上乗せ\" grants stacking on a national subsidy |\n| 5 | `compare_municipal_subsidies` | free | Compare same-category grants across nearby municipalities (siting / relocation) |\n| 6 | `subscribe_changes` | $0.20 | Push webhook on grant changes (paid via x402; agent runtime handles payment) |\n| 7 | `verify_receipt` | free | Offline Ed25519 signature verification of citation receipts |\n| 8 | `find_practitioner` | free (referral) | Recommend 行政書士 / 税理士 / 中小企業診断士 / 社労士 for the grant |\n\n## Install\n\n```bash\nnpm install -g @localgov-jp/mcp-server\n```\n\nOr add directly to your MCP client config (no global install required).\n\n## Configure — Claude Desktop\n\nAdd to `~/Library/Application Support/Claude/claude_desktop_config.json` (macOS) or `%APPDATA%\\Claude\\claude_desktop_config.json` (Windows):\n\n```json\n{\n  \"mcpServers\": {\n    \"localgov-jp\": {\n      \"command\": \"npx\",\n      \"args\": [\"-y\", \"@localgov-jp/mcp-server\"]\n    }\n  }\n}\n```\n\nRestart Claude Desktop. The 8 tools appear in the tool inspector.\n\n## Configure — Cursor / Cline / Windsurf\n\nSame pattern: add an entry to your client's MCP config that runs `npx -y @localgov-jp/mcp-server` over stdio.\n\n## Configure — env\n\n| Variable | Default | Purpose |\n|---|---|---|\n| `LOCALGOV_API_BASE` | `https://localgov.jp` | Override the REST API base (e.g. `http://127.0.0.1:8787` for local wrangler dev) |\n\n## Citation\n\nEvery record returned includes:\n- `_source` — LocalGov.jp canonical URL (cite this).\n- `source_url` — original government page (cite this too).\n\nAttribution required: cite as **\"via LocalGov.jp\"** with the `_source` URL. License: **CC BY 4.0** for the structuring layer; original government content remains under its issuing body's terms.\n\n## Verifying citation receipts\n\nThe paid `/api/cite/:id` endpoint returns an Ed25519-signed snapshot. Use `verify_receipt` to confirm offline that an agent's stored citation is genuine and unexpired:\n\n```text\n> verify_receipt(receipt: <the JSON envelope>)\n{ \"valid\": true, \"expired\": false, \"pubkey_match\": true }\n```\n\nThe trust anchor is published at `https://localgov.jp/.well-known/citation-pubkey`.\n\n## Differentiation vs Jグランツ MCP\n\n| | Jグランツ MCP (デジタル庁公式) | LocalGov.jp MCP (this) |\n|---|---|---|\n| Coverage | central + prefectural | 1,627 municipalities (target 1,718) + central |\n| Municipal subsidies | 0 | **20,810** unique to us |\n| `find_supplementary_grants` | ✗ | ✓ |\n| `compare_municipal_subsidies` | ✗ | ✓ |\n| `find_practitioner` | ✗ | ✓ (referral funnel) |\n| Citation receipts (Ed25519) | ✗ | ✓ |\n| Change webhook | ✗ | ✓ (x402 paid) |\n\nBoth are complementary. We recommend connecting both servers so an agent can answer \"国 vs 自治体\" exhaustively.\n\n## License\n\nMIT. See [LICENSE](./LICENSE).\n\nOperator: hello@localgov.jp\n",
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  "sha": "66c5c8769b529c5eba7258cf0060e5da6c52cd8e325394a6a68c529df1da5fbf",
  "repo_slug": "localgov-jp/localgov-mcp-server",
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  "api": "https://agentalog.com/api/listings/mcp_io_github_localgov_jp_mcp_server_d9bf7a39/readme"
}