Official MCP RegistryHosted servercallbacks.inversolabs.usv0.1.54

Agent Callback Mailbox

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

Connect to Claude Code

Copy

claude mcp add --transport http agent-callback-mailbox https://callbacks.inversolabs.us/mcp

Vendor-hosted remote server: nothing to install locally. If it uses OAuth, Claude opens the vendor login on first use.

Endpoints

Published in the official MCP registry as “us.inversolabs/agent-callback-mailbox”. Verified through the vendor namespace.