Use SLTax360 in Claude and ChatGPT

Ask your AI assistant how much surplus lines tax is due. It calls the SLTax360 calculator, the same engine behind our API and our website, and shows the tax, stamping fee and other levies line by line.

Connector address (MCP, Streamable HTTP)
https://sltax360.com/mcp

Free, no account needed: 3 tool calls per 24 hours.

What you can ask

The connector has two tools: a tax calculation for one premium in one state, and the rules for one state. Your assistant picks the right one.

What is the surplus lines tax on a $25,000 premium in Texas?

Compare the stamping fee in New York and California.

Does Florida include policy fees in the surplus lines tax base?

Calculate the taxes on a $150,000 Illinois policy with a $250 broker fee.

How to add it

No sign-in is needed. Menu names in these apps change from time to time; if a step looks different, look for the "connectors" or "apps" settings.

Claude (web and desktop)

  1. Open Settings, then Connectors.
  2. Click Add custom connector.
  3. Name: SLTax360. URL: https://sltax360.com/mcp
  4. Click Add, then ask a question in a new chat.

On a Team or Enterprise plan, an owner may need to add the connector first.

ChatGPT

  1. In Settings, turn on Developer mode (under the apps or connectors settings).
  2. Create a new app or connector with the URL https://sltax360.com/mcp.
  3. For authentication, choose No authentication.
  4. In a chat, select SLTax360 and ask your question.

Developer mode is available on paid ChatGPT plans on the web.

Claude Code

Run this once in your terminal:

claude mcp add --transport http sltax360 https://sltax360.com/mcp

Other MCP clients

Cursor, VS Code and other MCP clients: add a remote server with the Streamable HTTP transport and the URL https://sltax360.com/mcp. No headers or keys are needed.

Good to know

Free limit

3 tool calls per 24 hours, per conversation. Need more? Tell us what you need.

What we store

The tool name, the state, the time and the result status, to count use and apply the free limit. We do not store premiums, names or your conversation. See the privacy policy.

Estimates

Results are estimates from published state rates, not a filing. Verify with the state or stamping office before you file.

Need more than 3 calls a day?

The free connector is a demo. If you want your AI assistant to work through more policies, tell us what you need and we will reply by email.

Brokers and MGAs

SLTax360 prepares and tracks surplus lines filings, and files electronically where the state allows it. We can also show you the full platform.

Software teams

The Tax Calculator API runs the same calculation from your own systems.

Thank you. We received your request and will reply by email.

Want the filing done too?

SLTax360 prepares and tracks surplus lines filings, and files electronically where the state allows it.

Schedule a demo Open the web calculator