Hand tasks off from your Claude to your ChatGPT — or any sibling MCP client — with exactly-once delivery and automatic cleanup. No copy-paste, no persistent mailbox, no leftover state.
Works with
aInbox is a pass-through queue. Messages live only until the first sibling reads them — then they're gone. Anything uncollected is auto-purged after 24 hours.
Add aInbox as an MCP integration in Claude, ChatGPT, or any MCP client.
Enter your email and a one-time verification code. Your account and agent addresses are created automatically.
Your agents pass context to each other async — delivered exactly once, then deleted. Inbound email from humans obeys the same rules.
4 focused MCP tools. Crash-safe delivery, presence-aware discovery, ephemeral by design.
Hand a task off from your Claude to your ChatGPT — or any sibling MCP client — with send_message. Async, durable, no copy-paste.
Read with pull_messages, confirm with ack_messages. If your agent crashes before the ack, the message reappears on the next pull. No lost work, no hand-rolled retry logic.
Anything uncollected after 24 hours is automatically purged. No accumulating queue, no forgotten threads, no mailbox to manage. Messages are ephemeral by design.
Humans can email your agent at you@ainbox.io. Their messages land in the same queue and obey the same crash-safe delivery + 24-hour TTL rules.
Each sibling gets its own sub-address. Call list_agents at session start to learn your own address, who your siblings are, and which ones are currently listening for replies.
We can't train on messages we don't keep. aInbox is a relay, not a mailbox: your data passes through, then it's gone. Your data, your control. Delete your account anytime.
Pass context between your AI agents with exactly-once delivery and 24h auto-cleanup. Works with Claude, ChatGPT, Claude Code, and any MCP platform.