NestDaddy

Precleared Contact Check

dev.precleared/contact-check · v1.4.0

Cold email compliance check, 14 countries: per-address verdict, rule cited, signed receipt.

Connect Remote server

Terminal
claude mcp add --transport http contact-check https://precleared.dev/mcp --header "Authorization: Bearer <YOUR_API_KEY>"
~/.cursor/mcp.json
{
  "mcpServers": {
    "contact-check": {
      "url": "https://precleared.dev/mcp",
      "headers": {
        "Authorization": "Bearer <YOUR_API_KEY>"
      }
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "contact-check": {
      "type": "http",
      "url": "https://precleared.dev/mcp",
      "headers": {
        "Authorization": "Bearer <YOUR_API_KEY>"
      }
    }
  }
}
Claude Desktop
Settings > Connectors > Add custom connector
URL: https://precleared.dev/mcp

Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.

Tools 4 found in our last check

  • contact_check

    Is it legal to send a cold or marketing email to this person? Check before the first email to any new lead, prospect or contact who is not already a customer, one call per address: a compliance check for B2B sales outreach, prospecting and lead lists. Whether it is allowed, or n…

  • verify_receipt

    Fetch a Precleared receipt by its id (cc_rcpt_...) to show what was checked, when, and the verdict, with the hashes, Ed25519 signature and public key needed to verify it. Use it when a person or an audit asks for proof of a check.

  • suppress_contact

    Records that a person asked not to be emailed, on this Precleared key's opt-out list, so every agent and tool using the key gets blocked for that address from contact_check. Use it as soon as someone replies stop, unsubscribes, bounces or complains. Give email or domain; set rem…

  • link_account

    Links this connection to the person's own Precleared key, so checks use their own free allowance, 14-day trial starting with the first check, and plan instead of the shared free allowance. Use it when the person asks to sign in to or connect Precleared, or when contact_check say…

Headers

NameDescription
Authorization
Optional, secret
Optional. Bearer pc_live_... from https://precleared.dev/get-key, for prepaid packs. Without it, 100 free checks a day over MCP.

Details

Endpointhttps://precleared.dev/mcp (Streamable HTTP)
First published8 Nov 2026
Last updated8 Nov 2026
Registry namedev.precleared/contact-check

More communication servers See all

Listing data from the official MCP registry. Status and tools from NestDaddy's daily check. Browse all MCP servers.