Japan central + municipal subsidies (20,810 grants, 1,627 munis). 8 tools beyond Jγ°γ©γ³γ MCP.
Quick Install
Automated & IDE SetupCopy the AI prompt to install this server into Claude Code, Cursor, or another agent β or use 1-click editor setup below.
Not yet automatically verified
We haven't yet run this listing's install command through our automated sandbox check. This isn't a red flag β we're steadily working through the catalog.
Manual Client & Custom JSON ConfigExpand JSON βΎ
Client Config & Setup
Choose your client or environment
Target File:
π‘ Paste the JSON block into your client's configuration file under mcpServers, then restart the application.
Documentation Overview
@localgov-jp/mcp-server
Model Context Protocol (MCP) server for LocalGov.jp β Japan's central + municipal subsidies, structured for AI agents.
LocalGov.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 β that is the differentiator vs Digital Agency's official J-Grants MCP, which surfaces central + prefectural records only.
This server exposes 8 tools to MCP clients (Claude Desktop, Cursor, Cline, Windsurf, etc.).
Tools
| # | Tool | Cost | Purpose |
|---|---|---|---|
| 1 | search_subsidies | free | Search by keyword / prefecture / municipality / category / amount |
| 2 | get_subsidy_detail | free | Single record with citation anchor |
| 3 | get_municipality_grants | free | All subsidies for one JIS code (1,627 municipalities covered) |
| 4 | find_supplementary_grants | free | Find municipal "δΈδΉγ" grants stacking on a national subsidy |
| 5 | compare_municipal_subsidies | free | Compare same-category grants across nearby municipalities (siting / relocation) |
| 6 | subscribe_changes | $0.20 | Push webhook on grant changes (paid via x402; agent runtime handles payment) |
| 7 | verify_receipt | free | Offline Ed25519 signature verification of citation receipts |
| 8 | find_practitioner | free (referral) | Recommend θ‘ζΏζΈε£« / η¨η士 / δΈε°δΌζ₯θ¨Ίζ士 / η€Ύε΄ε£« for the grant |
Install
Or add directly to your MCP client config (no global install required).
Configure β Claude Desktop
Add to ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows):
Restart Claude Desktop. The 8 tools appear in the tool inspector.
Configure β Cursor / Cline / Windsurf
Same pattern: add an entry to your client's MCP config that runs npx -y @localgov-jp/mcp-server over stdio.
Configure β env
| Variable | Default | Purpose |
|---|---|---|
LOCALGOV_API_BASE | https://localgov.jp | Override the REST API base (e.g. http://127.0.0.1:8787 for local wrangler dev) |
Citation
Every record returned includes:
_sourceβ LocalGov.jp canonical URL (cite this).source_urlβ original government page (cite this too).
Attribution 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.
Verifying citation receipts
The 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:
The trust anchor is published at https://localgov.jp/.well-known/citation-pubkey.
Differentiation vs Jγ°γ©γ³γ MCP
| Jγ°γ©γ³γ MCP (γγΈγΏγ«εΊε ¬εΌ) | LocalGov.jp MCP (this) | |
|---|---|---|
| Coverage | central + prefectural | 1,627 municipalities (target 1,718) + central |
| Municipal subsidies | 0 | 20,810 unique to us |
find_supplementary_grants | β | β |
compare_municipal_subsidies | β | β |
find_practitioner | β | β (referral funnel) |
| Citation receipts (Ed25519) | β | β |
| Change webhook | β | β (x402 paid) |
Both are complementary. We recommend connecting both servers so an agent can answer "ε½ vs θͺζ²»δ½" exhaustively.
License
MIT. See LICENSE.
Operator: hello@localgov.jp
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