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Use US 401k Calculator with your AI.

Connect your account once and let the AI you already use work with it, without building another integration. Calculate 401k contribution limits, employer matching, tax savings, and retirement growth projections.

Included with plan

Ask AI about this Connector

Developed, maintained, and hosted by Vinkius.

MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED

Waiting for input…

Works with modern AI clients that support MCP, including ChatGPT, Claude, Cursor, and more.

ChatGPTClaudeCursorPerplexityGeminiMicrosoft CopilotRaycastMeta AI

Complete set · 4 capabilities

The complete US 401k Calculator capability set.

These are the exact actions your AI can choose when you ask it to work with US 401k Calculator.

Capability set01 / 01

01-04

4 capabilities in this set.

Part of 4 available through US 401k Calculator.

  1. 01

    Employer match tool

    Estimate the employer matching contribution

  2. 02

    Max contribution tool

    Calculate the maximum allowable 401k contribution based on age

  3. 03

    Account growth tool

    Project future 401k account balance

  4. 04

    Tax savings tool

    Estimate immediate income tax savings from 401k contributions

Observed, not estimated

643ms average. Fast in production.

US 401k Calculator is checked daily against the live service.

Daily averagePeak 760ms
Aug 20Today
Fastest day
503ms
Slowest day
760ms
14-day trend
Stable+4%

Connect your client

One URL. Every client.

Activate the Connector, copy your link, and paste it into the client you already use. 4 capabilities arrive ready to run.

Preview access · not provider authentication

The vk_preview_* token belongs to Vinkius preview infrastructure. It lets Claude discover and display the capabilities of US 401k Calculator, so you can see the experience inside your AI.

It does not authenticate your account with US 401k Calculator. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.

US 401k Calculator Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_zjytwENENxnBZ0iJWYhckdyvNuL2UxdQtPUjm8RX/mcp

Claude Desktop

Follow the steps below to connect in seconds.

  1. 1In Claude Desktop, open Settings → Connectors.
  2. 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
  3. 3Click Add and start a new chat — US 401k Calculator capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "us-401k-contribution-calculator-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_zjytwENENxnBZ0iJWYhckdyvNuL2UxdQtPUjm8RX/mcp"
    }
  }
}
  • Claude
  • ChatGPT
  • Cursor
  • VS Code
  • Windsurf
  • Claude Code
  • JetBrains
  • Cline

Step-by-step instructions for each client are in the guide. How to connect

FAQ

Questions US 401k Calculator owners ask.

  • 01

    How do I find my maximum 401k contribution?

    Use the max_contribution_tool by providing your current age. The capability will return the base limit and indicate if you are eligible for catch-up contributions.

  • 02

    Can I estimate my employer's match?

    Yes, use the employer_match_tool with your annual salary, contribution amount, and the company's matching percentage.

  • 03

    How much will I save in taxes?

    By using the tax_savings_tool, you can calculate your immediate tax savings based on your contribution amount and marginal tax rate.

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