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Agent Callback Mailbox

us.inversolabs/agent-callback-mailbox

Paid replay-safe callback inboxes for asynchronous agent tasks with structured MCP results.

Install

Add the config to your client settings. Replace values in <angle brackets> with your own.

claude_desktop_config.json

{
  "mcpServers": {
    "agent-callback-mailbox": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://callbacks.inversolabs.us/mcp"
      ]
    }
  }
}

Details

Name: us.inversolabs/agent-callback-mailbox
Version: 0.1.54
Updated: Oct 12, 2026
Source: Official MCP Registry