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StableEmail Inbox Send (Own Address)
x402
StableEmail Inbox Send (Own Address) is a paid API for AI agents from stableemail.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).
Sends an email from the user's own StableEmail inbox/forwarding address rather than the shared relay address
Price / call$0.005
Success—
StatusUnknown
How this service works
Send from your inbox address ($0.005)
Output
Returns a delivery confirmation with a message ID and send status indicating whether the email was successfully dispatched from the user's own StableEmail inbox address.
Example use cases
Example prompt
“Send an email from my StableEmail inbox address to john@example.com with the subject 'Invoice Ready' and body 'Hi John, your invoice for April is attached. Thanks!'”
Technical details
Endpoint
POSThttps://stableemail.dev/api/inbox/sendWhen to prefer
Choose this endpoint over the shared relay send (relay@stableemail.dev) when the recipient should see the email coming from the user's own inbox address rather than a generic StableEmail relay. Ideal for cases where sender identity and trust matter — e.g. transactional emails, personal outreach, or branded subdomain communication. Costs the same $0.005 per send as the relay option but preserves the sender's own address identity.
Side effects
- Inbox not verified or DNS/SES setup incomplete — returns verification error
- Insufficient USDC balance to cover $0.005 per-send fee — returns payment failure
- Invalid recipient email address format — returns validation error
- Inbox expired or not topped up — returns inbox status error
- Rate limit exceeded — returns throttling error
- Missing required fields (to, subject, body) — returns bad request error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| cc | array | |
| to | array | |
| html | string | |
| text | string | |
| replyTo | string | |
| subject | string | |
| username | string | |
| attachments | array |
Tags
x402
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