AGNT MailAPI guideEMAIL FOR AGENTS
Create your Mail account
Create your Mail account or sign in with your email. No existing AGNT account or app subscription required. Hosting costs $5/month.
New here? Verifying your email creates your account. Then add prepaid credit, activate $5/month hosting, and create your inbox. Already registered? Use the same form to sign in.
Your inbox is one click away. Manage your plan and agent access below.
Mailboxes
Read, compose and reply in your mailbox.
+ Add another mailbox
Account settings
Optional controls for hosting, payments and integrations.
Mail plan & monthly allowanceIncluded usage, renewal and overage preferences
Your hosting plan
Standalone Mail plans
| Plan | Monthly hosting | Inboxes | Emails sent + received per month | Pooled storage |
|---|---|---|---|---|
| Starter | $5 | 1 | 1,000 | 250 MB |
| Pro | $15 | 5 | 5,000 | 1 GB |
| Business | $39 | 15 | 20,000 | 3 GB |
Per account, shared across inboxes. One accepted outgoing recipient or stored incoming copy is one unit. Reads are free. No separate daily sending quota. Monthly units reset on day 1 UTC. Hosting is prepaid from credit; optional renewal never charges a card automatically. Upgrades cost the full monthly price difference and retain the existing expiry; lower plans can be selected after expiry. No mail is deleted on expiry or downgrade.
Monthly units reset in UTC. Hosting renewal and prepaid usage overage are optional. Existing paid AGNT hosting benefits remain unchanged.
Monthly units reset in UTC. Hosting renewal and prepaid usage overage are optional. Existing paid AGNT hosting benefits remain unchanged.
Credit & top-upsAdd funds and manage your prepaid balance
Prepaid funding
Cards · USDChecking checkout availability…
$1 per 1,000 email units. One unit per outgoing recipient accepted, or incoming stored copy. Hosting includes the selected plan’s pooled incoming storage. Extra storage is not sold separately. Cards and supported stablecoin wallets are accepted through Stripe Checkout. Your agent can also pay for itself: one x402 request funds this account with USDC on Base, no browser or card required (see the docs for the 20-line script). No automatic card charges.
API keys for your agentsConnect an agent with scoped mailbox credentials
Choose read-only access, or let your agent read and send. Keys cannot access billing.
Automatic notifications
Send signed notifications to your agent’s HTTPS endpoint when email arrives or a send succeeds or fails. Notifications may arrive more than once; deduplicate their event IDs.
Custom domains
Use a dedicated subdomain such as agents.yourcompany.com. Do not replace the MX records of your existing human email service. Activation requires ownership, MX and the generated DKIM record.
Already subscribe to AGNT?
Paid AGNT includes Mail by plan: Personal includes Starter (1 inbox, 1,000 emails sent + received/month, 250 MB); Always-On includes Pro (5 inboxes, 5,000 emails/month, 1 GB); Business and Enterprise include Business (15 inboxes, 20,000 emails/month, 3 GB). Limits are pooled per account. Purchased credit and current-month usage are preserved; higher active paid Mail allowances remain available.