Connector URL
https://mcp.columnapi.com/mcp
Add as a Connector
This server runs remotely, so you can add it as a connector in chat apps. No install needed.
- Open claude.ai → Settings → Connectors
- Click Add custom connector
- Paste the URL below and click Add, then sign in if asked
https://mcp.columnapi.com/mcp
Works on Claude web, desktop and mobile once added. Full Claude guide →
- Open Settings → Apps & Connectors → Advanced and turn on Developer mode
- Go back to Apps & Connectors and click Create
- Give it a name and description, paste the URL below, pick the auth type, then save
https://mcp.columnapi.com/mcp
Needs a Plus, Pro, Business, Enterprise or Edu plan. Full ChatGPT guide →
- Open grok.com/connectors
- Click New Connector → Custom
- Paste the URL below and finish any sign-in
https://mcp.columnapi.com/mcp
Custom connectors need a paid Grok plan. Full Grok guide →
- Open gemini.google.com → Settings → Connected Apps
- Under Custom apps, choose Add a custom app
- Paste the URL below, click Next and approve in the browser
https://mcp.columnapi.com/mcp
Add it on the web first. It then shows in the Gemini mobile app too. Full Gemini guide →
- Open your agent in Copilot Studio and go to Tools → Add a tool → New tool
- Select Model Context Protocol and fill in the name, description and the URL below
- Pick the auth type, click Create, then Add to agent
https://mcp.columnapi.com/mcp
The consumer Copilot app has no custom MCP setting. Copilot Studio needs a paid license and Streamable HTTP. Full Microsoft Copilot guide →
- Open Settings → Connectors in Perplexity
- Click + Custom connector and choose Remote
- Give it a name, paste the URL below, pick OAuth or API key, then save
https://mcp.columnapi.com/mcp
Needs a Pro, Max or Enterprise plan. Full Perplexity guide →
- Open the Connectors page in Le Chat
- Click + Add Connector and switch to the Custom MCP Connector tab
- Enter a name, paste the URL below, click Connect and finish sign-in
https://mcp.columnapi.com/mcp
Admin-only. On Free, Pro and Student plans the account owner is the admin. Full Le Chat guide →
- Open Settings → Integrations → Custom MCP Servers
- Click Add Server
- Enter a name, paste the URL below and add any API key or token
https://mcp.columnapi.com/mcp
Manus checks the server and lists its tools once added. Full Manus guide →
- The Muse app has no custom MCP setting yet. Use Muse Code instead
- Add the server to the
mcp_serversblock of~/.config/muse/settings.json - Restart Muse Code so it loads the new tools
{
"mcp_servers": {
"aiwyn-tax": {
"url": "https://mcp.columnapi.com/mcp"
}
}
}
Tools (9)
check_taxcalculate_taxtax_yearstax_jurisdictionstax_namespace_schematax_namespacestax_simple_returngenerate_tax_pdf_toolgenerate_uuid_v5
FAQ
How do I add the Aiwyn Tax (formerly Column Tax) MCP connector?
Copy the connector URL https://mcp.columnapi.com/mcp and add it as a custom connector in Claude, ChatGPT, Grok, Gemini, Microsoft Copilot, Perplexity, Le Chat, Manus, Meta Muse. The steps for each app are on this page.
Does the Aiwyn Tax (formerly Column Tax) connector need sign-in?
No. The Aiwyn Tax (formerly Column Tax) connector is authless, so you can use it without an account.
What tools does the Aiwyn Tax (formerly Column Tax) connector provide?
It provides 9 tools: check_tax, calculate_tax, tax_years, tax_jurisdictions, tax_namespace_schema, tax_namespaces, tax_simple_return, generate_tax_pdf_tool, generate_uuid_v5.
Is Aiwyn Tax (formerly Column Tax) in Claude's connector directory?
Yes. Aiwyn Tax (formerly Column Tax) is listed in Anthropic's official connector directory for Claude.