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ClaudeChatGPTPerplexityGeminiMicrosoft CopilotRaycastMeta AIGrokZ.aiQwenKimi
DeepSeekMistralCursorVS CodeWindsurfJetBrainsClineLovableVercel AI SDKLangChain

Use TaxJar with your AI.

Connect your account once and let the AI you already use work with it, without building another integration. Connect your AI to TaxJar. Calculate sales tax dynamically, validate active nexus regions, and assess order tax liability natively from the terminal.

Included with plan

Ask AI about this Connector

Developed, maintained, and hosted by Vinkius.

MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED

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

ChatGPTClaudeCursorPerplexityGeminiMicrosoft CopilotRaycastMeta AI

Complete set · 10 capabilities

The complete TaxJar capability set.

These are the exact actions your AI can choose when you ask it to work with TaxJar.

Capability set01 / 03

01-04

4 capabilities in this set.

Part of 10 available through TaxJar.

  1. 01

    List tax orders

    Lists previously recorded order transactions in TaxJar

  2. 02

    Get tax rates

    Retrieves sales tax rates for a specific ZIP code

  3. 03

    Calculate sales tax

    Provide order details like from/to addresses and amounts as a JSON payload. Calculates the exact sales tax for a specific order

  4. 04

    Get summary tax rates

    Retrieves minimum and average tax rates by region

Capability set02 / 03

05-07

3 capabilities in this set.

Part of 10 available through TaxJar.

  1. 05

    Get tax categories

    Lists product tax categories from TaxJar

  2. 06

    Get tax order details

    Retrieves details for a specific order transaction

  3. 07

    List tax customers

    Lists TaxJar customer records and exemptions

Capability set03 / 03

08-10

3 capabilities in this set.

Part of 10 available through TaxJar.

  1. 08

    List nexus regions

    Lists regions where the business has tax nexus

  2. 09

    List tax refunds

    Lists previously recorded refund transactions

  3. 10

    Validate tax address

    Provide address details as a JSON payload. Validates a physical address for tax purposes

Observed, not estimated

840ms average. Fast in production.

TaxJar is checked daily against the live service.

Daily averagePeak 1053ms
Aug 20Today
Fastest day
674ms
Slowest day
1053ms
14-day trend
Slowing+12%

Connect your client

One URL. Every client.

Activate the Connector, copy your link, and paste it into the client you already use. 10 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 TaxJar, so you can see the experience inside your AI.

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

TaxJar Connector

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

Connector linkhttps://edge.vinkius.com/vk_preview_0dPv0CDpemL9jlVTpnoIhUNavuFEYKlkruwTsPSD/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 — TaxJar capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "taxjar-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_0dPv0CDpemL9jlVTpnoIhUNavuFEYKlkruwTsPSD/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 TaxJar owners ask.

  • 01

    Can it calculate tax for complex multi-item orders?

    Yes. The calculate_sales_tax capability accepts full order payloads including multiple line items, shipping costs, and customer addresses to return precise tax breakdowns.

  • 02

    What are nexus regions?

    A nexus is a state or jurisdiction where your business has a tax obligation. Use list_nexus_regions to see where you're registered to collect sales tax.

  • 03

    Does it support sandbox mode?

    Yes. TaxJar provides sandbox API tokens for testing. Use a sandbox token to test tax calculations without affecting your live account or generating real transactions.

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