Is the AgentSIM MCP server free to use?

Yes. AgentSIM is listed on AllMCPs as a free, open Model Context Protocol server you can install into Claude Desktop, Cursor, or any MCP-compatible client.

Is the AgentSIM MCP server free to use?

Yes. AgentSIM is listed on AllMCPs as a free, open Model Context Protocol server you can install into Claude Desktop, Cursor, or any MCP-compatible client.

AgentSIM

Real SIM-backed phone numbers for AI agents — autonomous OTP capture, no VoIP, no human steps.

Quick Install

Automated & IDE Setup

Copy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.

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Manual Client & Custom JSON ConfigExpand JSON ▾

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claude_desktop_config.json

{
  "mcpServers": {
    "agentsim": {
      "command": "npx",
      "args": [
        "-y",
        "agentsim"
      ]
    }
  }
}

💡 Paste into ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows)

Documentation Overview

AgentSIM is a 💻 Developer Tools MCP server listed on AllMCPs. Real SIM-backed phone numbers for AI agents — autonomous OTP capture, no VoIP, no human steps.

We couldn’t automatically pull a README for this listing from GitHub, so the summary above comes from its listing details. To install it, use the one-click buttons or copy the config from the Quick Install section above, then open the source repository for full setup instructions, configuration options, and the tools it exposes over MCP.

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Frequently Asked Questions about AgentSIM

Add the following block to your claude_desktop_config.json under mcpServers: "mcpServers": { "agentsim": { "command": "npx", "args": ["-y", "AgentSIM"] } }

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Technical Specs & Signals

CategoryDeveloper Tools

27Quality signal: Emerging · 27/100How this signal is calculated ▾

Server availabilityNot measured

Not scored for repo-hosted servers — we can't reach the running server, only its GitHub page. Hosted MCP endpoints are health-checked live.

Verified ownership8/20

Documentation & tools11/30

Adoption & activity1/15

Community engagement0/10

A guidance signal from public completeness & health data — not a user rating. New listings start lower and rise as they add docs, get verified, and grow adoption. Signals we can't observe for a listing are skipped, not counted against it.

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The official MCP server for AllMCPs.com - submit and manage tools directly from your AI. The open directory for MCP servers. Connect Claude, Cursor, Windsurf, and AI agents to databases, tools, files, and APIs. Explore 3,181+ servers. AllMCPs is the premier, open directory for discovering, evaluating, and installing Model Context Protocol (MCP) servers to equip AI agents and LLMs with real-world superpowers.

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More in 💻 Developer Tools →Best MCP servers for Developers →Alternatives to AgentSIM →Install in Claude Desktop Install in Cursor Install in VS Code