AgentUni
Communication & Email Hosted remote

Quackr

by io.quackr / v1.0.3

Virtual phone numbers for SMS verification, OTP receipt, and number management.

Install

Remote / streamable-http

https://mcp.quackr.io/

npm / stdio

npx -y quackr-mcp

Client config (Claude Desktop, Cursor, Windsurf and most MCP clients)

{
  "mcpServers": {
    "io-quackr-quackr": {
      "url": "https://mcp.quackr.io/"
    }
  }
}

Source: official MCP Registry record · registry name io.quackr/quackr · published 2026-06-18 · updated 2026-06-18. Not an endorsement; review the code before connecting it to anything sensitive.

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