Build on top of
the Mextyl OS.

One unified REST API to drive your CRM, Deal Sourcing, Cap Table and LP Portal. OAuth2 authentication, clean JSON responses, native MCP Tools for Claude, ChatGPT and Gemini.

Create an API Key Explore the Reference
mextyl-api — zsh

Compatible with

Claude OpenAI Gemini Zapier Slack n8n
API Resources

Every module.
One single API.

All Mextyl modules are exposed through the same REST API and the same MCP Tools registry — dynamically generated from our production catalog.

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Model Context Protocol

Connect Claude, ChatGPT or Gemini
directly to your data.

250+ native MCP Tools expose your Mextyl functions — CRM, Deal Room, Cap Table and more — to any MCP-compatible AI agent, with zero extra code.

CONNECT
AUTHENTICATE
SELECT TOOLS
ASK YOUR AGENT

Connect Add mcp.mextyl.com/mcp as a custom connector in Claude Desktop, ChatGPT or Gemini.

Authenticate One-time OAuth2 sign-in with your Mextyl credentials — no manual token handling.

Select Tools Enable granular, per-tool permissions across CRM, Deal Room, Cap Table and LP Portal.

Ask Your Agent Every call is rate-limited and logged automatically via Cloudflare KV audit trails.

Configure MCP

Ready to integrate
with Mextyl?

Create your API keys for free and start building in minutes — REST API, MCP Tools, and native SDKs.

Create an API Key Explore the Reference
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Alphy
AI Sales Assistant
Welcome to Mextyl! I'm Alphy, your AI Sales Assistant. Are you interested in learning more about how Mextyl's API and MCP Tools can help you integrate with your CRM, deal flow and fund data?
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