Use US Capital Gains Calculator with your AI.
Connect your account once and let the AI you already use work with it, without building another integration. Calculate US capital gains tax liability based on holding periods and taxable income.
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.
Complete set · 3 capabilities
The complete US Capital Gains Calculator capability set.
These are the exact actions your AI can choose when you ask it to work with US Capital Gains Calculator.
01-03
3 capabilities in this set.
Part of 3 available through US Capital Gains Calculator.
- 01
Calculate gain classification
Determines if a transaction results in short-term or long or long-term capital gain
- 02
Estimate tax liability
Calculates the dollar amount of tax owed on a realized gain
- 03
Get tax bracket context
Provides income thresholds for long-term tax rates
Observed, not estimated
664ms average. Fast in production.
US Capital Gains Calculator is checked daily against the live service.
- Fastest day
- 500ms
- Slowest day
- 927ms
- 14-day trend
- Slowing+44%
Connect your client
One URL. Every client.
Activate the Connector, copy your link, and paste it into the client you already use. 3 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 Capital Gains Calculator, so you can see the experience inside your AI.
It does not authenticate your account with US Capital Gains Calculator. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.
US Capital Gains Calculator Connector
You're all set. Choose your MCP client and follow the setup instructions.
https://edge.vinkius.com/vk_preview_OrWi7RQKvVzEHccwg4xb2PKMDAoC7DK6rG4LmZui/mcpClaude Desktop
Follow the steps below to connect in seconds.
- 1In Claude Desktop, open Settings → Connectors.
- 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
- 3Click Add and start a new chat — US Capital Gains Calculator capabilities are ready to use.
{
"mcpServers": {
"us-capital-gains-tax-calculator-mcp": {
"url": "https://edge.vinkius.com/vk_preview_OrWi7RQKvVzEHccwg4xb2PKMDAoC7DK6rG4LmZui/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 Capital Gains Calculator owners ask.
- 01
What is the difference between short-term and long-term capital gains?
Short-term gains apply to assets held for one year or less and are taxed at your ordinary income tax rate. Long-term gains apply to assets held for more than one year and benefit from lower preferential rates of 0%, 15%, or 20%.
- 02
How do I calculate my tax liability?
First, use calculate_gain_classification to determine your gain amount and whether it is short-term or long-term. Once you have the gain amount, use estimate_tax_liability along with your annual taxable income and filing status to find the total tax due.
- 03
Can I see the current tax thresholds?
Yes, you can use the get_tax_bracket_context capability to retrieve a list of income thresholds and their associated long-term tax rates for your specific filing status.
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