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agmail Inbox 1-Hour Renewal (MPP)
x402
agmail Inbox 1-Hour Renewal (MPP) is a paid API for AI agents from agmail.shveik.dev, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-10).
Renews an existing agmail receive-only email inbox for an additional 1-hour window, paying via MPP (Micropayment Protocol) with stablecoins.
Price / call$0.02
Success—
StatusUnknown
How this service works
Receive-only email inboxes for AI agents, by the hour. Pay in stablecoins with x402 or MPP; one call returns the code or the link.
Output
Returns a JSON object with the inbox_id, the plan ('1h'), a status of 'queued' confirming the renewal payment is in flight, and a 'next' message explaining that the extension will be applied once the payment settles (approximately one minute).
Example use cases
Support inbox for an agent fleet
“My AI agent fleet is using the agmail inbox ib_0123456789ab to collect verification emails, and it's about to expire — can you renew it for another hour using the MPP endpoint with secret sk_abc123?”
Automated inbox keep-alive loop
“Set up a renewal for the agmail inbox ib_abcdef012345 using my secret every 50 minutes so my agent never loses access to its receive-only email address — kick off the first renewal now via MPP.”
One-off inbox extension after unexpected delay
“My workflow ran longer than expected and the agmail inbox ib_fedcba987654 is about to lapse — renew it for one more hour via MPP using secret mysecret99 so the confirmation email can still come in.”
Technical details
Endpoint
POSThttps://agmail.shveik.dev/v1/mpp/inbox-1h-renew?utm_source=zero.xyzWhen to prefer
Use this endpoint when you have an existing agmail inbox that needs its 1-hour lease extended and you are paying via MPP (Micropayment Protocol) rather than x402. Choose this over the x402 sibling endpoint when your agent's payment stack is MPP-native. Prefer over creating a new inbox when you want to preserve the same inbox_id and email address continuity.
Side effects
- Invalid inbox_id format (must match ^ib_[0-9a-f]{12}$) returns a 400 error
- Wrong or missing secret results in authentication failure
- Payment settlement failure or insufficient stablecoin balance prevents renewal
- Inbox already expired before renewal queued — extension may not apply
- Network timeout before payment confirmation — status stays queued indefinitely
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| secret | string | |
| inbox_id | string |
Output
Schema · Response
{
"type": "json",
"example": {
"next": "The extension is applied once the payment has settled (a minute or so); GET /v1/…",
"plan": "1h",
"status": "queued",
"inbox_id": "ib_0123456789ab"
}
}Tags
x402
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