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.
3 focused MCP tools, one guarantee: your context passes between your agents exactly once, then it's gone.
Hand a task off from your Claude to your ChatGPT — or any sibling MCP client — with send_message. Async, durable, no copy-paste.
Every message goes to exactly one sibling. get_messages_and_delete reads and deletes atomically in one SQL statement. No duplicates, no partial reads, no reprocessing across sessions.
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 delete-on-read + TTL rules.
Each sibling gets its own sub-address. Call get_address_book at session start to learn your own address and who your siblings are — no hardcoding.
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.