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StableEmail Forwarding Inbox Send
emailsendinboxforwardingsubdomainsocial
StableEmail Forwarding Inbox Send is a paid API for AI agents from StableEmail at stableemail.dev, paid per call via x402 or MPP, $0.005/call, status unknown (last checked 2026-10-11, last successful call 2026-08-04).
Sends an email from the caller's own forwarding inbox username on stableemail.dev to one or more recipients
Price / call$0.005
Success96%
StatusUnknown
How this service works
Send email from your forwarding inbox on stableemail.dev ($0.005)
Output
A confirmation that the email was sent from the specified stableemail.dev forwarding inbox to the listed recipients. No body payload is returned beyond a success acknowledgment.
Example use cases
Automated weekly report delivery
“Every Monday morning, send a summary report email from my stableemail inbox 'reports' to the whole team at team@mycompany.com with the subject 'Weekly Metrics Report' and include the performance numbers we pulled from the dashboard.”
Customer order confirmation emails
“When a new order comes in from the store, send a confirmation email from my stableemail inbox 'orders' to the customer's email address with the subject 'Your Order Has Been Confirmed' and a message thanking them and including their order details.”
Outreach campaign from named inbox
“Send a personalized outreach email from my stableemail inbox 'sales' to potential@clientbusiness.com with the subject 'Quick Question About Your Team' and a short friendly message introducing our product and asking if they'd be open to a 15-minute chat.”
Technical details
Endpoint
POSThttps://stableemail.dev/api/inbox/send?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to send email from a specific named forwarding inbox on stableemail.dev (i.e. username@stableemail.dev) rather than the generic relay address. At $0.005 per send it is cheaper than the generic Send endpoint ($0.02). Use it when the sender identity/username matters or when you want replies to go to the inbox you own.
Side effects
- Invalid or unregistered username — inbox does not exist or has expired
- Invalid recipient email format — 400 validation error
- Missing required fields (username, to, subject) — 400 bad request
- Inbox not funded or expired — payment/authorization failure
- Attachment size or count exceeds limits (max 5 attachments, 5MB each) — 400 error
- Payment failure — insufficient USDC balance for $0.005 charge
- Too many recipients — to or cc array exceeds 50 items
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| cc | array | |
| torequired | array | |
| html | string | |
| text | string | |
| replyTo | string | |
| subjectrequired | string | |
| usernamerequired | string | |
| attachments | array |
Tags
emailsendinboxforwardingsubdomainsocial
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