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Slashy MCP lets your favorite AI tools - Claude Code, Claude Desktop, Cursor, and Codex - use Slashy’s email, calendar, and research tools directly. This section walks you through the basics before you pick a client to set up.

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What does Slashy MCP do?

Slashy MCP gives any MCP-compatible AI assistant access to Slashy’s toolset:
  • Email automation - draft, send, reply, schedule, label, and attach files through your Slashy account
  • Calendar automation - create events, check availability, propose meeting times
  • Contact research - enrich leads with LinkedIn, company data, and news
  • Meeting prep - pull attendee profiles and email history
  • Reminders + triggers - create scheduled workflows from chat
See Using Slashy MCP for ready-made example prompts covering each of these.

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Why use it?

  • Work where you already work. Trigger Slashy actions from Claude, Cursor, or Codex without switching apps.
  • One login. OAuth 2.1 with PKCE - no API keys to copy, rotate, or leak.
  • Always current. Tools update automatically on Slashy’s side; your client picks them up.

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Prerequisites

Before you start, make sure you have:
  • A Slashy account signed in with Google. Sign up at slashy.com if you haven’t.
  • One of the supported clients installed:
    • Claude Code
    • Claude Desktop
    • Cursor
    • Codex CLI
  • A browser available on the same machine (OAuth opens a login window).
Slashy MCP uses OAuth 2.1 with PKCE. You log in through your browser once - no manual tokens, no config files with secrets.

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How to install

1

Pick your client

Choose the AI tool you want to connect and follow its setup guide. Each takes under a minute.

Claude Code

Terminal-based. One command.

Claude Desktop

Visual settings panel. No config files.

Cursor

JSON config. Restart to connect.

Codex CLI

TOML config in ~/.codex/config.toml.
2

Install the Slashy skill

Add the Slashy skill / rules file to your client so it always reaches for Slashy MCP when you mention email, calendar, research, or scheduling - no more repeating “use Slashy” in every prompt.
3

Start using it

Try a ready-made prompt - triage your inbox, draft a reply, prep for tomorrow’s meetings, attach a file from Drive, or get Slashy links to open threads in the app.