AgentMail vs Resend: email API pricing compared
Updated 2026-11-09 · listed A to Z, not ranked
AgentMail gives AI agents their own email inboxes through an API, priced by inboxes, monthly sends and custom domains.
Resend is an email API for developers, priced by monthly email volume with a flat overage rate.
Listed A to Z, from agentmail.to and resend.com. Every figure below is quoted from those pages.
- Main price table
- Free, Developer, Startup, Enterprise
- Free option
- Free: $0 / month
- Published prices
- Free (3 inboxes, 3,000 emails/mo), Developer $20/mo, Startup $200/mo, add-ons from $2, plus its x402 route. Checked Nov 9.
- Main price table
- Free, Pro, Scale, Enterprise
- Free option
- Free: $0
- Published prices
- Free 3,000 emails a month, Pro $20 (50,000), Scale $90 (100,000), $0.90 per extra 1,000, plus domain, IP, SSO and inbox add-ons.
How we checked: Prices quoted from each official pricing page: AgentMail checked Nov 9, 2026, Resend checked Nov 9, 2026. Taxes, usage overages and promotions can change what you pay; confirm with each provider before you buy.
How they compare
- Main price table. AgentMail lists 4 entries (Free, Developer, Startup, Enterprise); Resend lists 4 (Free, Pro, Scale, Enterprise).
- Lowest listed paid tier. AgentMail: Developer $20 / mo. Resend: Pro $20, price per month. Billing terms differ (per user or flat, monthly or annual), so check what each tier includes below.
- Free option. AgentMail: Free: $0 / month. Resend: Free: $0.
AgentMail plans and prices
| Plan | Price | Inboxes | Emails | Custom domains | Storage |
|---|---|---|---|---|---|
| Free | $0 / month | 3 | 3,000 / month (100 / day) | 1 | 3 GB |
| Developer | $20 / month | 10 | 10,000 / month (1,000 / day) | 10 | 10 GB |
| Startup | $200 / month | 150 | 15,000 / day (no separate monthly cap) | 150 | Unlimited |
| Enterprise | Custom | Up to unlimited | Custom | Custom | Custom |
Developer includes 2 organization seats and email support; Startup includes 10 seats and a SOC 2 report. Enterprise adds white-label, EU region cloud, BYO cloud, dedicated IPs, SSO and an SLA. The page also has a Monthly / Yearly toggle.
| Add-on | Monthly | Yearly plans |
|---|---|---|
| One more inbox | $2 / month | $19.20 / year |
| One more custom domain | $2 / month | $19.20 / year |
| 1,000 more emails a month | $2 / month | $19.20 / year |
| One more seat | $5 / month | $48 / year |
Per the page, increases are prorated for the rest of the period and reductions take effect at renewal.
From agentmail.to, checked Nov 9, 2026. Full breakdown: AgentMail pricing.
Resend plans and prices
| Plan | Price per month | Emails | Extra per 1,000 | Domains |
|---|---|---|---|---|
| Free | $0 | 3,000 a month (100 a day) | — | 3 |
| Pro | $20 | 50,000 | $0.90 | 10 |
| Scale | $90 | 100,000 | $0.90 | 1,000; 500 AI credits |
| Enterprise | Custom | Custom |
| Add-on | Price |
|---|---|
| +100 domains (Pro, Scale) | $20 per month |
| Dedicated IP (Scale, over 3,000 emails a day) | $30 per month |
| SSO (Scale) | $150 per month |
| Extra inbox (3 included on Pro and Scale) | $1 per inbox |
From resend.com, checked Nov 9, 2026. Full breakdown: Resend pricing.
FAQ
How much does AgentMail cost?
Free (3 inboxes, 3,000 emails/mo), Developer $20/mo, Startup $200/mo, add-ons from $2, plus its x402 route. Checked Nov 9. (checked Nov 9, 2026).
How much does Resend cost?
Free 3,000 emails a month, Pro $20 (50,000), Scale $90 (100,000), $0.90 per extra 1,000, plus domain, IP, SSO and inbox add-ons. (checked Nov 9, 2026).
Do AgentMail and Resend have a free option?
AgentMail: Free: $0 / month. Resend: Free: $0.
What is the cheapest paid plan, AgentMail or Resend?
Lowest listed paid tier: AgentMail Developer $20 / mo; Resend Pro $20, price per month (as quoted on each pricing page). Billing units differ, so compare what each includes.
Where do these prices come from?
Each vendor's own pricing page: agentmail.to (checked Nov 9, 2026) and resend.com (checked Nov 9, 2026). Prices change; confirm on the vendor's page before you buy.
Sources (official pages, read 2026-11-09)
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