Precleared Contact Check vs Campfire SMS

In-depth architectural comparison of the Precleared Contact Check and Campfire SMS 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?

P

Choose Precleared Contact Check when:

• You need dedicated capabilities in the Communication domain.
• You prefer remote streaming HTTP/SSE transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).
• You have access to required keys: PRECLEARED_API_KEY, PRECLEARED_API_BASE, PRECLEARED_TIMEOUT_MS.
• Primary tools included: contact_check, verify_receipt.

Explore Precleared Contact Check Details

Choose Campfire SMS when:

• You need dedicated capabilities in the Communication domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: API Key required (Freemium).
• You have access to required keys: CAMPFIRE_API_URL, CAMPFIRE_CREDENTIAL, CAMPFIRE_CONFIG_PATH, CAMPFIRE_BRIDGE_STATE_PATH.
• Primary tools included: .

Feature & Specification Comparison

Specification	P Precleared Contact Check Communication	Campfire SMS VerifiedCommunication
Summary	Cold email compliance check for outreach agents: GDPR, PECR, CAN-SPAM, CASL verdict, signed receipt.	CampfireSMS is a two-way SMS transport between a verified phone number and an AI agent. Enroll at campfiresms.com and verify your phone before connecting. Local Codex and Grok Build use npx -y @campfiresms/setup YOUR_INSTALLATION_CODE (Node.js 18+, Python 3.12+); keep the computer online and the agent running. Hosted MCP at https://api.campfiresms.com/mcp requires Authorization: Bearer ; adding the URL alone is insufficient. Grok Bot can wake through a separately configured webhook routine. The agent supplies its own model and tools; SMS replies steer work and do not replace native approvals. Free verification demo, monthly plan, and one-time message packs. Setup: https://campfiresms.com/install.html.

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": {
    "precleared-contact-check": {
      "url": "https://precleared.dev/mcp"
    }
  }
}

{
  "mcpServers": {
    "campfire-sms": {
      "command": "npx",
      "args": [
        "-y",
        "@campfiresms/setup"
      ],
      "env": {
        "CAMPFIRE_API_URL": "YOUR_CAMPFIRE_API_URL_HERE",
        "CAMPFIRE_CREDENTIAL": "YOUR_CAMPFIRE_CREDENTIAL_HERE",
        "CAMPFIRE_CONFIG_PATH": "YOUR_CAMPFIRE_CONFIG_PATH_HERE",
        "CAMPFIRE_BRIDGE_STATE_PATH": "YOUR_CAMPFIRE_BRIDGE_STATE_PATH_HERE"
      }
    }
  }
}

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