gamma-mcp-server

Gamma MCP Server

A Model Context Protocol (MCP) server that integrates Gamma.app with AI assistants. Create presentations, documents, webpages, and social posts directly from your AI conversations.

Works with: Claude Code, Claude Desktop, OpenCode, GitHub Copilot CLI, Google Gemini CLI, and any other MCP-compatible AI assistant.

Features

• Generate Content: Create professional presentations, documents, webpages, and social posts from text prompts
• Theme Support: Browse and apply visual themes to your content
• Folder Organization: Save generated content to specific folders
• Template Remix: Create variations of existing Gamma templates
• Email Sharing: Share generated content directly via email

Quick Start

1. Clone and Install

git clone https://github.com/Arkava-AI/gamma-mcp-server.git
cd gamma-mcp-server
npm install
npm run build

2. Get Your Gamma API Key

1. Log in to gamma.app
2. Go to Settings > API (or Settings > Members > API tab)
3. Click Create API key
4. Copy the key (format: sk-gamma-xxxxxxxx)

Note: Requires Gamma Pro, Ultra, Team, or Business account.

3. Configure Your AI Assistant

Choose your AI assistant below for setup instructions.

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Claude Desktop (macOS / Windows / Linux)

Config File

OS	Path
macOS	~/Library/Application Support/Claude/claude_desktop_config.json
Linux	~/.config/Claude/claude_desktop_config.json
Windows	%APPDATA%\Claude\claude_desktop_config.json

Add to the mcpServers object:

{
  "mcpServers": {
    "gamma": {
      "command": "node",
      "args": ["/absolute/path/to/gamma-mcp-server/dist/index.js"],
      "env": {
        "GAMMA_API_KEY": "sk-gamma-your-api-key-here"
      }
    }
  }
}

Restart Claude Desktop

Restart Claude Desktop to load the new MCP server. You should see "gamma" in your MCP servers list.

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Claude Code

Claude Code uses the same MCP configuration as Claude Desktop. If you've already configured Claude Desktop, you're all set.

For project-level configuration, create a .claude/settings.json file in your project directory with the same mcpServers structure shown above. This allows different projects to use different MCP server configurations.

---

OpenCode

Config File

Scope	Path
Global (user)	~/.config/opencode/opencode.json
Project	./opencode.json (in your project root)

JSON Structure

{
  "mcp": {
    "gamma": {
      "type": "local",
      "command": ["node", "/absolute/path/to/gamma-mcp-server/dist/index.js"],
      "enabled": true,
      "environment": {
        "GAMMA_API_KEY": "sk-gamma-your-api-key-here"
      }
    }
  }
}

Note: OpenCode uses a different config format from Claude Desktop — mcp (not mcpServers), type field required ("local" or "remote"), command is an array, and env vars go under environment.

Restart OpenCode after editing the config to load the server.

---

GitHub Copilot CLI

Config File

• ~/.copilot/mcp-config.json

JSON Structure

{
  "mcpServers": {
    "gamma": {
      "type": "local",
      "command": "node",
      "args": ["/absolute/path/to/gamma-mcp-server/dist/index.js"],
      "env": {
        "GAMMA_API_KEY": "sk-gamma-your-api-key-here"
      },
      "tools": ["*"]
    }
  }
}

Note: Requires the GitHub Copilot CLI (gh copilot) — not the same as OpenAI Codex.

---

OpenAI Codex

Config File

• ~/.codex/config.toml (TOML format, not JSON)

TOML Structure

[mcp_servers.gamma]
command = "node"
args = ["/absolute/path/to/gamma-mcp-server/dist/index.js"]
enabled = true

[mcp_servers.gamma.env]
GAMMA_API_KEY = "sk-gamma-your-api-key-here"

Note: Codex uses TOML format, not JSON. The env section is a separate table under [mcp_servers.gamma.env].

---

Google Gemini CLI

Config File

Scope	Path
User	~/.gemini/settings.json
Project	.gemini/settings.json (in your project root)

JSON Structure

{
  "mcpServers": {
    "gamma": {
      "command": "node",
      "args": ["/absolute/path/to/gamma-mcp-server/dist/index.js"],
      "cwd": "/absolute/path/to/gamma-mcp-server",
      "env": {
        "GAMMA_API_KEY": "sk-gamma-your-api-key-here"
      },
      "timeout": 30000
    }
  }
}

Restart Gemini CLI after editing the config to load the server.

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Available Tools

Tool	Description
gamma_generate	Create presentations, documents, webpages, or social posts
gamma_get_status	Check generation progress (with optional polling)
gamma_from_template	Remix existing Gamma templates
gamma_list_themes	Browse available visual themes
gamma_list_folders	List your Gamma folders
gamma_share_email	Share content via email
gamma_health	Verify server and API are reachable
gamma_archive	Archive a Gamma from your workspace

gamma_generate

Create new content using Gamma's AI.

Formats & Sizes:

• presentation: fluid, 16x9, 4x3
• document: fluid, pageless, letter, a4
• social: 1x1, 4x5, 9x16
• webpage: fluid

Example prompts in your AI assistant:

• "Create a 5-slide presentation about sustainable energy"
• "Generate a document explaining our Q1 results"
• "Make a social media post announcing our new product"

gamma_get_status

Check if a generation has completed. Set waitForCompletion: true to automatically poll until done.

gamma_from_template

Remix an existing Gamma with new content or variable substitutions.

{
  "templateId": "gamma_xyz789",
  "prompt": "Update for Q1 2025",
  "variables": { "company_name": "Acme Corp" }
}

---

Multi-Machine Setup

This repository is designed for easy deployment across multiple machines:

# On each machine:
git clone https://github.com/Arkava-AI/gamma-mcp-server.git
cd gamma-mcp-server
npm install && npm run build

# Then configure your AI assistant with the local path

To update on any machine:

git pull
npm install
npm run build
# Restart your AI assistant

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Environment Variables

Variable	Default	Description
GAMMA_API_KEY	(required)	Your Gamma API key (sk-gamma-...)
GAMMA_API_BASE_URL	https://public-api.gamma.app/v1.0	Override for self-hosted Gamma instances
GAMMA_POLL_INTERVAL_MS	2000	Milliseconds between status polls (default 2s)
GAMMA_MAX_POLL_ATTEMPTS	150	Max polling attempts before timeout (default 150 × 2s = 5 min)

---

Development

# Run in development mode with auto-reload
npm run dev

# Build for production
npm run build

# Run linting
npm run lint

# Format code
npm run format

# Type check
npm run typecheck

# Test with MCP Inspector
npm run inspect

---

Project Structure

gamma-mcp-server/
├── src/
│   ├── index.ts          # Main entry point
│   ├── constants.ts      # Configuration constants
│   ├── types.ts          # TypeScript interfaces
│   ├── schemas/          # Zod validation schemas
│   ├── services/         # API client and formatters
│   └── tools/            # MCP tool implementations
├── dist/                 # Compiled JavaScript (generated)
├── package.json
├── tsconfig.json
└── eslint.config.js

---

API Credits

Gamma uses a credit-based system for API usage. Credits are consumed per generation. Monitor your usage in the Gamma dashboard and enable auto-recharge if needed.

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Troubleshooting

Error	Solution
"GAMMA_API_KEY environment variable is required"	Ensure env.GAMMA_API_KEY is set in your AI assistant's MCP config
"Invalid API key"	Keys should start with sk-gamma-. Verify the complete key.
"Rate limit exceeded"	Wait a few minutes. Contact Gamma support for higher limits.
"Insufficient credits"	Top up credits or enable auto-recharge in Gamma settings.

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Requirements

• Node.js 18+
• Gamma Pro/Ultra/Team/Business account (for API access)
• MCP-compatible AI assistant (Claude Code, Claude Desktop, OpenCode, GitHub Copilot CLI, Gemini CLI, etc.)

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Maintainer

Arkava Ltd — [email protected]

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License

MIT License - see LICENSE for details.

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Links

• Gamma Developer Docs
• MCP Specification
• Gamma.app