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StableEmail Buy Custom Email Subdomain
emailsendinboxforwardingsubdomainsocial
StableEmail Buy Custom Email Subdomain is a paid API for AI agents from StableEmail at stableemail.dev, paid per call via MPP or x402, $5/call, status unknown (last checked 2026-10-09, last successful call 2026-06-12).
Purchase a custom email subdomain on stableemail.dev for $5 USDC, enabling branded email addresses like yourname.stableemail.dev
Price / call$5
Success100%
StatusUnknown
How this service works
Purchase a custom email subdomain on stableemail.dev ($5)
Output
Returns confirmation that the custom email subdomain has been purchased and registered on stableemail.dev, enabling the use of that subdomain for email forwarding and receiving without needing an account.
Example use cases
Example prompt
“Can you register the subdomain 'myproject' on StableEmail so I can use it for custom email addresses — it's stableemail.dev and costs $5?”
Technical details
Endpoint
POSThttps://stableemail.dev/api/subdomain/buy?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a persistent, branded custom email subdomain (e.g. myapp.stableemail.dev) for routing or receiving email, especially when you want no-account, pay-once setup. Prefer over the inbox Buy endpoint when you need a shared namespace for multiple inboxes under one subdomain rather than a single inbox address.
Side effects
- Subdomain already taken — returns conflict error
- Invalid subdomain format — must be lowercase alphanumeric with hyphens, 3-30 chars, no double hyphens, not starting or ending with hyphen
- Insufficient USDC balance — payment of $5 USDC fails
- Subdomain contains reserved or blocked words — rejected
- Network timeout during payment processing
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| subdomainrequired | string |
Tags
emailsendinboxforwardingsubdomainsocial
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