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StableEmail Inbox Annual Topup
x402
StableEmail Inbox Annual Topup is a paid API for AI agents from stableemail.dev, paid per call via MPP or x402, $8/call, status unknown (last checked 2026-09-13).
Extends a StableEmail inbox subscription by 365 days for $8 USDC (34% discount over monthly rate)
Price / call$8
Success—
StatusUnknown
How this service works
Top up inbox 365 days ($8, save 34%)
Output
Returns a confirmation that the inbox has been extended by 365 days, along with the new expiry date and updated subscription status.
Example use cases
Example prompt
“Renew my StableEmail inbox subscription for a full year — go ahead and pay the $8 to top it up for 365 days so it doesn't expire.”
Technical details
Endpoint
POSThttps://stableemail.dev/api/inbox/topup/yearWhen to prefer
Use this endpoint when you want to renew a StableEmail inbox for a full year at the discounted annual rate ($8 vs ~$12 for 12 monthly topups). Prefer this over the monthly topup when the inbox needs to stay active long-term and cost savings matter.
Side effects
- Payment failure if insufficient USDC balance
- Invalid or non-existent inbox identifier returns 404
- Inbox already at maximum allowed expiry window
- Network timeout during payment processing
- Authentication error if inbox ownership cannot be verified
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| username | string |
Tags
x402
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