J-Grants MCP Server

Official MCP server from Digital Agency Japan (digital-go-jp org) for J-Grants — Japan's national government grant and subsidy portal. Enables AI agents to search and query Japanese government grants, subsidies, and public funding opportunities through the official J-Grants database API.

Evaluated Mar 06, 2026 (0d ago) vcurrent
Homepage ↗ Repo ↗ Developer Tools japan government grants subsidies official digital-go-jp mcp-server public-sector
⚙ Agent Friendliness
73
/ 100
Can an agent use this?
🔒 Security
82
/ 100
Is it safe for agents?
⚡ Reliability
70
/ 100
Does it work consistently?

Score Breakdown

⚙ Agent Friendliness

MCP Quality
75
Documentation
72
Error Messages
68
Auth Simplicity
80
Rate Limits
72

🔒 Security

TLS Enforcement
92
Auth Strength
80
Scope Granularity
75
Dep. Hygiene
78
Secret Handling
82

Official Japanese government service. HTTPS enforced. Public grant database data.

⚡ Reliability

Uptime/SLA
72
Version Stability
72
Breaking Changes
70
Error Recovery
68
AF Security Reliability

Best When

A Japanese business, startup, or advisor wants AI agents to search official Japanese government grant and subsidy databases — finding relevant public funding opportunities through J-Grants.

Avoid When

You're looking for non-Japanese grants, or need to submit applications programmatically. J-Grants MCP is a search/discovery tool for Japan's grant database.

Use Cases

  • Searching Japanese government grants and subsidies from business support agents
  • Querying J-Grants database for matching funding opportunities from advisory agents
  • Building grant application assistance tools using official government grant data
  • Integrating Japan public funding search into small business support AI workflows

Not For

  • Non-Japanese entities (J-Grants is Japan government grants only)
  • International grant databases (different MCP needed)
  • Real-time grant application submission (search/query only)

Interface

REST API
Yes
GraphQL
No
gRPC
No
MCP Server
Yes
SDK
No
Webhooks
No

Authentication

Methods: api_key
OAuth: No Scopes: No

J-Grants API key may be required. API access via official Japanese government portal. Review registration requirements on j-grants-portal.go.jp.

Pricing

Model: free
Free tier: Yes
Requires CC: No

J-Grants is a Japanese government public service. MCP server is free open source from digital-go-jp (Digital Agency Japan).

Agent Metadata

Pagination
page
Idempotent
Full
Retry Guidance
Not documented

Known Gotchas

  • Documentation and API responses primarily in Japanese — agents need Japanese language capability
  • Official from Digital Agency Japan (digital-go-jp) — high quality government digital team
  • Grant data updates on government schedule — may not reflect real-time availability
  • API registration may require Japanese business registration details

Alternatives

Full Evaluation Report

Detailed scoring breakdown, competitive positioning, security analysis, and improvement recommendations for J-Grants MCP Server.

$99

Scores are editorial opinions as of 2026-03-06.

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