Japan JGB Yields

Ministry of Finance Japanese Government Bond reference yields — tenors for your AI agent.

For rates desks, ALM and Japan macro agents. Free: latest curve. Pro: history and tenor lookup.

Tools

• latest_yields (free) — FREE. Latest JGB reference yields (1y–40y) from MoF Japan.
• recent (Pro) — PRO. Last ~10 JGB yield observations.
• tenor (Pro) — PRO. Latest yield for one tenor year (1,2,3,4,5,6,7,8,9,10,15,20,25,30,40).

Live free example

latest_yields {}

{
  "latest": {
    "date": "R8.10.15",
    "1y": "1.652",
    "2y": "1.913",
    "3y": "2.045",
    "4y": "2.209",
    "5y": "2.331",
    "6y": "2.431",
    "7y": "2.535",
    "8y": "2.686",
    "9y": "2.818",
    "10y": "2.948",
    "15y": "3.489",
    "20y": "3.786",
    "25y": "4.048",
    "30y": "4.024",
    "40y": "4.031"
  },
  "pro": "Recent history and tenor lookup: https://jp-jgb-yields-mcp.donniertf.workers.dev/buy",
  "disclaimer": "Japanese Government Bond reference yields from the Ministry of Finance CSV. Not investment advice."
}

Connect (MCP)

Add https://jp-jgb-yields-mcp.donniertf.workers.dev/mcp to Claude, Cursor or any MCP client (Streamable HTTP, no login for the free tier). Subscribers pass access_token or Authorization: Bearer.

Important

Japanese Government Bond reference yields from the Ministry of Finance CSV. Not investment advice.

Data sources & licences

• Ministry of Finance Japan JGB interest rate CSV

For AI agents

llms.txt · server card · pricing.json · POST /checkout → checkout URL · GET /token?session_id= → access token.

More Japan data MCPs

Save with Japan bundles: jp-mcp-bundles · GitHub hub.

Contact & cancelling

Questions, refunds or cancelling: dmorrisonwebdesign@gmail.com. Run by Donnie Morrison, UK. Payments by Stripe; we never see card details.