Send email

AgentMail

Email API that gives AI agents their own inboxes to send, receive and thread messages, with webhooks and an MCP server.

Billing

Pricing model: Subscription plans billed monthly or yearly; add-ons for inboxes, domains, monthly sends and seats1
Free tier: 3 inboxes, 3,000 emails a month, 100 a day, 3 GB storage1
Free tier (other page): 3 inboxes, 100 emails a day, no monthly cap3
Card required for free tier: No1
Minimum spend: Not published1
Billing period: Monthly or yearly; add-ons are prorated on increase and reduced at renewal1

Prices

Developer: $20 / 10,000 emails = $2 per 1,000 emails. Startup monthly cap shown as 150,000 on the rate-limits page: $200 / 150 = $1.33 per 1,000. Add-on rate is $2 per 1,000 emails.

Item	Price	Includes
Free	$0 a month	3 inboxes, 3,000 emails a month
Developer	$20 a month	10 inboxes, 10,000 emails a month, 10 custom domains
Startup	$200 a month	150 inboxes, 150 custom domains
Add-on: 1,000 more emails a month	$2 a month, or $19.20 a year on yearly plans	Developer and Startup only
Enterprise	Custom	Usage-based pricing

Source1Pricing

Plans

Plan	Emails per day	Emails per 5 minutes	Storage	Seats
Free	100	No separate cap	3 GB	2
Developer	1,000	100	10 GB	2
Startup	15,000	1,500	Unlimited	10
Enterprise	Custom	Custom	Custom	Custom

Source1Pricing

Other charges

Inbox add-on: $2 a month per inbox, or $19.20 a year on yearly plans1
Domain add-on: $2 a month per domain, or $19.20 a year on yearly plans1
Seat add-on: $5 a month per seat, or $48 a year on yearly plans1
Dedicated IPs: Enterprise only; contact sales1

Read from AgentMail’s own pages on 2026-11-04. Every number links to the page a value came from. For agents, the same facts as markdown: /tools/send-email/agentmail.md