How to Use the Treasury Return Calculator MCP in Claude

Q: How do I install Treasury Return Calculator on Claude Desktop?

Open your claudedesktopconfig.json file and add this MCP under the mcpServers key. Once you restart the app, the bond math tools are active in your chat window.

Get real-time sovereign bond valuations and inflation-adjusted yields directly inside your Claude Desktop app.

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Connect Treasury Return Calculator MCP to Claude Desktop

Create your Vinkius account to connect Treasury Return Calculator to Claude Desktop — we handle the hosting, security, and runtime updates so you don't have to. No server setup required.

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Setup Treasury Return Calculator with Claude Desktop

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Value sovereign debt inside Claude Desktop

Use `calculate_bond_valuation` to compute fair market prices and annualized yields to maturity for US Treasuries, UK Gilts, or German Bunds directly in your chat interface. Stop pasting bond yields into external spreadsheets. The math doesn't lie. Your agent processes the exact coupon frequency and day-count conventions for each sovereign issuer, saving you from manual bond math errors.

Compare cross-border yields with this MCP Server

Your client calls `calculate_currency_equivalent_yield` to translate foreign yields back to your home currency so you can make actual apples-to-apples comparisons. Foreign sovereign debt yields look tempting until you factor in currency hedging costs. Bottom line, you cannot trade global debt without currency parity, and this matters when yields look deceptively high. This MCP Server strips out the noise and shows you the real spread.

Calculate real purchasing power preservation

Your agent uses `calculate_inflation_adjusted_return` to run the CPI adjustments on your US Treasuries or Bunds. High nominal yields are a trap when inflation runs hot. This calculation strips away the nominal illusion to show you what your sovereign portfolio actually earns in real terms. You get the brutal truth about your real purchasing power in seconds.

Setup guide

Set up Treasury Return Calculator MCP in Claude Web or Desktop

1

Open Claude Settings

Go to claude.ai, click your profile icon, then navigate to Customize → Connectors.
2

Add Custom Connector

Click the "+" button and select Add custom connector. Paste your Vinkius endpoint URL: https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com. For OAuth-protected servers, expand Advanced settings to add credentials.
3

Start a conversation

Open a new chat. The Treasury Return Calculator MCP tools are available immediately — no restart needed.

Endpoint URL

https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp

No configuration file needed — paste the URL directly in the Claude web interface.

Available on Free (1 connector), Pro, Max, Team, and Enterprise plans.

Prerequisites

Claude Desktop installed (macOS or Windows)
Active Vinkius subscription with a valid endpoint token

1

Open Claude Desktop Settings

Click the menu icon at the top-left corner, go to Settings → Developer → Edit Config. This opens claude_desktop_config.json in your default text editor.
2

Paste the Treasury Return Calculator MCP configuration

Copy the JSON snippet on the right into the mcpServers object. Replace [YOUR_TOKEN_HERE] with your endpoint token from cloud.vinkius.com.
3

Restart Claude Desktop

Close and reopen the application. Claude needs a full restart to load new MCPs — refreshing a conversation is not enough.
4

Verify the connection

Open a new conversation. Click the 🔌 icon at the bottom of the message input. You should see tools listed under treasury-return-calculator-mcp.

json

{
  "mcpServers": {
    "treasury-return-calculator-mcp": {
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}

Get your connection token →

Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by Treasury Return Calculator. All third-party trademarks, logos, and brand names are the property of their respective owners. Their use on this website is strictly for informational purposes to identify service compatibility and interoperability.

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Common questions about Treasury Return Calculator MCP in Claude Desktop

Open your claude_desktop_config.json file and add this MCP under the mcpServers key. Once you restart the app, the bond math tools are active in your chat window.

Yes, it handles German Bunds, UK Gilts, and US Treasuries. The tool adjusts for annual coupons on Bunds versus semi-annual coupons on Treasuries automatically.

Yes, it runs as a local subprocess via stdio transport when configured in your desktop settings. Your calculations never leave your machine unless you use a remote connection.

The tool uses standard financial market conventions for day counts and compounding frequencies. It avoids theoretical academic shortcuts to match actual trading desk valuations.

All bond prices, yields, and coupon rates remain strictly local on your machine. This integration does not send your portfolio data to external databases or third-party tracking services.

Use it with your favorite AI tools

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