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Machine Inbox — Extend Inbox by Seven Days
x402
Machine Inbox — Extend Inbox by Seven Days is a paid API for AI agents from machineinbox.com, paid per call via x402, $1/call, status unknown (last checked 2026-09-16).
Extends the expiration of an existing Machine Inbox email inbox by seven additional days
Price / call$1
Success—
StatusUnknown
How this service works
Extend an active inbox by seven days
Output
Returns confirmation that the inbox has been extended by seven days, typically including the new expiration timestamp and updated inbox status.
Example use cases
Keeping a long-running agent inbox alive
“My agent's temporary inbox is expiring tomorrow and it still needs to receive replies — extend inbox 160072df-a508-4355-9b17-c1edfa18bb7d for another seven days.”
Preserving an inbox mid-project
“We're in the middle of an email verification flow and the inbox is about to run out — add seven more days to inbox 160072df-a508-4355-9b17-c1edfa18bb7d so we don't lose access.”
Automated weekly inbox renewal
“Renew my Machine Inbox every week automatically — the inbox ID is 160072df-a508-4355-9b17-c1edfa18bb7d and I want to make sure it never lapses mid-workflow.”
Technical details
Endpoint
POSThttps://machineinbox.com/api/v1/inboxes/160072df-a508-4355-9b17-c1edfa18bb7d/extendWhen to prefer
Use this endpoint when you already have an active Machine Inbox (created via the separate create endpoint) and need to keep it alive beyond its original seven-day window. Prefer this over creating a new inbox when you need to preserve the same email address and any messages already in the inbox. Best used in automated workflows that monitor inbox expiration and trigger renewal before the deadline.
Side effects
- Inbox ID not found or invalid UUID — returns 404
- Inbox already expired and cannot be extended — returns error indicating the inbox must be recreated
- Payment of $1 USDC not completed — returns 402 Payment Required
- Duplicate extension request within very short window may fail if state has not settled
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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