MCP MeasureMCP Measure

index observed

Japan JGB Yields MCP

Ministry of Finance Japanese Government Bond reference yields.

Should I use this

Quality & Safety

B
Description quality
80%
Schema completeness
70%
Naming quality
80%
Poisoning risk
100%
Permission match
100%
Protocol compliance
100%

Based on automated analysis of tool definitions and protocol compliance.

Context Cost

~196Tokens (tool definitions)
~358 BTypical response size
Minimal attention impact (0.15% of 128k context)

This is the approximate number of tokens consumed each time the server's tools are loaded into a model's context. Higher counts reduce the attention available for other tasks.

Install

One-Click Install

Add this to your `claude_desktop_config.json` file:

{
  "mcpServers": {
    "jp-jgb-yields-mcp": {
      "url": "https://jp-jgb-yields-mcp.donniertf.workers.dev/mcp"
    }
  }
}

Remote endpoints

https://jp-jgb-yields-mcp.donniertf.workers.dev/mcpstreamable-http

What it can do

Tool inventory

Tools (3)

🟢 Read-only🟡 Write🔴 Delete⚪ Unknown
⚪latest_yields

FREE. Latest JGB reference yields (1y–40y) from MoF Japan.

Input Schema

{
  "type": "object",
  "properties": {}
}
⚪recent(access_token)

PRO. Last ~10 JGB yield observations.

Input Schema

{
  "type": "object",
  "properties": {
    "access_token": {
      "type": "string",
      "description": "Subscriber token from /success (or Authorization: Bearer)"
    }
  }
}
⚪tenor(years, access_token)

PRO. Latest yield for one tenor year (1,2,3,4,5,6,7,8,9,10,15,20,25,30,40).

Input Schema

{
  "type": "object",
  "properties": {
    "years": {
      "type": "number"
    },
    "access_token": {
      "type": "string",
      "description": "Subscriber token from /success (or Authorization: Bearer)"
    }
  },
  "required": [
    "years"
  ]
}

Community

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Evidence

Recent observations

verifiedversion not recorded3 tools