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StableEmail

Other
Pay-per-send email delivery. No API keys, no accounts.

About StableEmail

Review the Service identity, supported languages, protocol versions, and source metadata discovered by the directory.

Service details

Service Id
45441a58-cbf1-4aa9-8e47-5bfd9ceabe1e
Service origin
https://stableemail.dev
ListedSeptember 24, 2026, 6:58 PM
Last checkedSeptember 24, 2026, 8:12 PM

Protocol details

SourceOpenAPI

Endpoints

Endpoint details are saved from the OpenAPI document. Authentication requirements and prices are advertised information, not a verified payment or access guarantee. The document may contain additional endpoints.Open OpenAPI document
POST/api/inbox/buy

Buy an inbox on stableemail.dev ($1, 30 days). forwardTo is optional — omit it to use as a programmatic mailbox via the message…

1 USD
POST/api/inbox/cancel

Cancel inbox and get pro-rata refund (free)

Price unavailableThe operation requires declared authentication; API keys, bearer tokens and other schemes are not evidence of AEP support.
POST/api/inbox/list

List all inboxes owned by the authenticated wallet (free)

Price unavailableThe operation requires declared authentication; API keys, bearer tokens and other schemes are not evidence of AEP support.
POST/api/inbox/messages

List messages in your inbox ($0.001)

0.001 USD
POST/api/inbox/messages/delete

Delete a single inbox message (free)

Price unavailableThe operation requires declared authentication; API keys, bearer tokens and other schemes are not evidence of AEP support.
POST/api/inbox/messages/read

Read a single inbox message ($0.001). Returns text, HTML, and attachment download URLs (1hr expiry). Message content available …

0.001 USD
POST/api/inbox/send

Send email from your forwarding inbox on stableemail.dev ($0.005)

0.005 USD
GET/api/inbox/status

Check inbox status (free)

Price unavailableThe operation requires declared authentication; API keys, bearer tokens and other schemes are not evidence of AEP support.
POST/api/inbox/topup

Top up a forwarding inbox for 30 days ($1)

1 USD
POST/api/inbox/topup/quarter

Top up a forwarding inbox for 90 days ($2.50, save 17%)

2.5 USD
POST/api/inbox/topup/year

Top up a forwarding inbox for 365 days ($8, save 34%)

8 USD
POST/api/inbox/update

Update inbox settings (free)

Price unavailableThe operation requires declared authentication; API keys, bearer tokens and other schemes are not evidence of AEP support.
POST/api/send

Send an email from "StableEmail" <relay@stableemail.dev> ($0.02)

0.02 USD
POST/api/subdomain/buy

Purchase a custom email subdomain on stableemail.dev ($5)

5 USD
POST/api/subdomain/inbox/create

Create an inbox on your subdomain ($0.25). Max 100 inboxes, 500 messages each. Message content and attachments retained for 90 …

0.25 USD
POST/api/subdomain/inbox/delete

Delete an inbox on a subdomain (free)

Price unavailableThe operation requires declared authentication; API keys, bearer tokens and other schemes are not evidence of AEP support.
POST/api/subdomain/inbox/list

List inboxes on a subdomain (free)

Price unavailableThe operation requires declared authentication; API keys, bearer tokens and other schemes are not evidence of AEP support.
POST/api/subdomain/inbox/messages

List messages in a subdomain inbox ($0.001)

0.001 USD
POST/api/subdomain/inbox/messages/delete

Delete a single subdomain inbox message (free)

Price unavailableThe operation requires declared authentication; API keys, bearer tokens and other schemes are not evidence of AEP support.
POST/api/subdomain/inbox/messages/read

Read a single subdomain inbox message ($0.001). Returns text, HTML, and attachment download URLs (1hr expiry). Message content …

0.001 USD
POST/api/subdomain/inbox/update

Update subdomain inbox settings (free)

Price unavailableThe operation requires declared authentication; API keys, bearer tokens and other schemes are not evidence of AEP support.
POST/api/subdomain/send

Send email from your custom subdomain on stableemail.dev ($0.005)

0.005 USD
POST/api/subdomain/signers

Manage authorized signers for a subdomain (free)

Price unavailableThe operation requires declared authentication; API keys, bearer tokens and other schemes are not evidence of AEP support.
GET/api/subdomain/status

Check subdomain status (free)

Price unavailableThe operation requires declared authentication; API keys, bearer tokens and other schemes are not evidence of AEP support.
POST/api/subdomain/update

Update subdomain settings (free)

Price unavailableThe operation requires declared authentication; API keys, bearer tokens and other schemes are not evidence of AEP support.