Pricing

Usage-based pricing for the Agent Email API.

Pay As You Go

For teams building and launching their product.

$0.50 / inbox / month

Card on file, no commitment

Full API access from day one

Shared @agent.openmail.sh domain

Webhook delivery with HMAC signing

REST API + TypeScript/Node SDK

Email support

Launch

For platforms deploying agents at scale.

Custom pricing

Everything in Pay As You Go, plus:

Custom sending domain + IP warmup

Webhook retry with delivery guarantees

Usage API for reconciliation (GET /v1/billing/usage)

Priority support over Slack

Dedicated onboarding

Enterprise

For large platforms that need white-glove infrastructure, security, and support.

Custom pricing

Everything in Launch, plus:

Dedicated IP pool

1hr SLA for critical issues

DPA + MSA included

Custom contract terms

Uptime guarantees

Core	Pay As You Go	Launch	Enterprise
Shared @agent.openmail.sh domain
Custom sending domain + IP warmup
Threading
Attachments
Webhook delivery (HMAC signing)
Webhook retry with delivery guarantees
REST API + TypeScript/Node SDK
Usage API (GET /v1/billing/usage)