Harvest MCP Server vs Magnus

In-depth architectural comparison of the Harvest MCP Server and Magnus MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

Which MCP Server Should You Choose?

Choose Harvest MCP Server when:

• You need dedicated capabilities in the Workplace & Productivity domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: API Key required (BYOK (Pay Provider Direct)).
• You have access to required keys: HARVEST_ACCESS_TOKEN, HARVEST_ACCOUNT_ID.
• Primary tools included: Complete Harvest API v2 coverage with 40+ tools, Type-safe with TypeScript and Zod validation, Async/await with rate limiting and auto-retry.

Explore Harvest MCP Server Details

M

Choose Magnus when:

• You need dedicated capabilities in the Workplace & Productivity domain.
• You prefer remote streaming HTTP/SSE transport architecture.
• Your security boundary fits: OAuth 2.0 (Paid Service).

Explore Magnus Details

Feature & Specification Comparison

Specification	Harvest MCP Server ianaleck Workplace & Productivity	M Magnus Workplace & Productivity
Summary	Harvest time tracking integration with 40+ tools for managing time entries, projects, clients, tasks, and generating time reports via the Harvest API v2	Remote MCP server for Magnus, an AI chief of staff for founders. Connect any OAuth-capable MCP client (Claude.ai, Claude Desktop, Claude Code) to https://getmagnus.co/mcp and your agent can work with your Magnus goals, documents, reminders and connected services (Google, Slack, GitHub, Notion), and ask Magnus to act for you. OAuth sign-in with PKCE, or a personal bearer token.
Category & Scope

Tools & Capabilities Breakdown

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

{
  "mcpServers": {
    "ianaleck-harvest-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@ianaleck/harvest-mcp-server"
      ],
      "env": {
        "HARVEST_ACCESS_TOKEN": "YOUR_HARVEST_ACCESS_TOKEN_HERE",
        "HARVEST_ACCOUNT_ID": "YOUR_HARVEST_ACCOUNT_ID_HERE"
      }
    }
  }
}

{
  "mcpServers": {
    "magnus": {
      "url": "https://getmagnus.co/mcp"
    }
  }
}

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