2¢ per email

Send email

Let your agent send the email.

Send a message through StableEmail from your agent’s task. Review the recipient and message before asking it to send.

One TaskFuel account and prepaid balance. Connect your agent and it shows the price before it pays.

Start for FreeWhat it can do
No card required
Works with

Send email: what your agent gets.

Currently available through StableEmail. Your AI picks the one that fits and checks the exact price before it pays.

  • Send an email

    Send from StableEmail’s shared relay with text or HTML and up to five attachments.

    2¢
  • Buy an inbox

    Get an inbox for 30 days. Check the provider’s renewal terms before buying.

    $1
  • Send from your inbox

    Send from an inbox you have purchased.

    0.5¢
  • List and read messages

    List messages and read their contents, including attachment links.

    0.1¢ each
  • Buy a subdomain

    Create inboxes under your own subdomain on stableemail.dev.

    $5
  • Manage and clean up

    Manage inbox settings or request cancellation under the provider’s terms.

    Free

Send email, tested.

One paid call from our own test run: what went in, what it cost and what came back.

TaskFuel test run ·

Charged $0.02

Your agent asked

Send a plain-text test email to an approved inbox
Data from
StableEmail

What came back

Provider response
Success
Message ID
Returned
Inbox delivery
Not confirmed

One plain-text message accepted for delivery to an approved test inbox.

Try it in your next task.

Sign in to TaskFuel and copy the connection prompt into your agent. Approve the connection, then ask for the work you need.

01

Name the task

Tell your agent what the output needs to contain.

02

See the price

Your agent shows the provider and price before spending.

03

Review the response

Check the output against your task. The call reports its cost and remaining balance.

When to use it.

Finished reports

Send the report from the task.

Check the recipient and attachment, then tell your agent to send.

Scheduled work

Send an update after a run.

Configure the recipient and sending permissions in your agent before scheduling it.

Replies

Give the recipient a way to answer.

Set a reply-to address you already use, or request a provider inbox.

Use it with your agent.

Open the guide for the client where you do the work.

Providers for this task.

CapabilityProvidersReference
Send an emailAgentMail, AgentMail via Orthogonal, StableEmail, Sats4AICompare providers · Endpoint data

Good Questions.

What does an email cost?

2¢ from the shared relay address, or 0.5¢ once you have your own inbox or subdomain. Your agent shows the price for your own request before it pays.

Do I need a sending provider account?

No. Your agent pays from your TaskFuel balance, so there is nothing else to sign up for.

What address does the email come from?

By default, StableEmail's shared relay address. You can set your own reply-to on any send so answers reach you. If you want mail to go out from an address of your own, buy an inbox for $1 or a subdomain for $5.

Can my agent receive replies?

Yes, with an inbox. Forward it to a mailbox you already read, or leave it programmatic: your agent lists and reads messages for a tenth of a cent each. Message content and attachments stay available for 90 days.

Can I send attachments?

Up to five per email. Each one carries a filename and a content type, so a PDF, a CSV or an image all work.

Will it end up in spam?

Deliverability is the provider's to manage, not TaskFuel's. Mail from the shared relay is sent alongside everyone else's; a subdomain of your own gives you a sending identity that is only yours.

What if a send fails?

If the provider answers a send with a 4xx or 5xx, nothing is charged. A send the provider accepts can still be charged when its answer is empty or unhelpful.

Your agent can do things it couldn’t this morning.

$1 in free credit, no card required.

Start for Free