MachineMail vs Resend
MachineMail and Resend are both developer tools tools. MachineMail is aimed at developers and small businesses, while Resend is aimed at developers. MachineMail costs less, from $9/mo versus $20/mo for Resend. Both have a free plan.
Email API and MCP server that gives AI agents inboxes of their own
Email API for developers
| Pricing | Freemium · $9 | Freemium · $20 |
| Starting price | $9/mo | $20/mo |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Built for | Developers, Small businesses | Developers |
| Platforms | web | web |
| Country | — | US · 2023 |
| Rating | — | — |
Choose MachineMail if
Developers building AI agents that need their own email addresses and a safe way to read untrusted inbound mail.
- Unlimited inboxes are free on every plan
- Trust layer addresses prompt injection and phishing in email
- AgentMail-compatible API makes switching a config change
Look elsewhere if: Teams that only need to send transactional or marketing email from an app (Resend).
Choose Resend if
Developers and startups who want transactional email that is a pleasure to integrate.
- Best developer experience in email APIs
- React Email templates are a joy
- Free tier for small projects
Look elsewhere if: High-volume senders needing advanced deliverability tooling or full marketing automation.
MachineMail vs Resend pricing
MachineMail
- Free$03,000 messages/mo (100/day), 1 GB, 1 custom domain, 1 seat
- Pro$9/mo7,500 inbound, 2,500 outbound, 10 GB, 10 domains, unlimited seats
- Team$49/mo45,000 inbound, 15,000 outbound, 30 GB, 50 domains, unlimited seats
- Scale$199/mo200,000 inbound, 65,000 outbound, 150 GB, 250 domains, Slack support
Resend
- Free$03,000 emails/mo, 100/day, 3 domains, 30-day retention
- Pro$20/mo50,000 emails/mo, 10 domains, no daily limit
- Scale$90/mo100,000 emails/mo, 1,000 domains, dedicated IP add-on
- EnterpriseCustom99.99% SLA, dedicated CSM, SSO included
MachineMail · Key features
- Free inboxes on machinemail.dev or your own domains, ephemeral or permanent
- Trust report and level on every inbound message
- Agent-safe text with hidden text and zero-width characters removed
- Hosted MCP server with 17 tools, including wait_for_message
- Catch-all domains that create an inbox on first delivery
- Pods and scoped API keys to separate customers or agents
Cons
- New service that publishes no team, legal entity or address on its site
- Free plan caps mail at 100 messages a day
- No annual pricing listed
Resend · Key features
- Simple REST API and SDKs for Node, Python, Go, Ruby, PHP, Java
- React Email for component-based templates
- Domains with DKIM/SPF guidance and dedicated IPs
- Webhooks, idempotency keys and batch sending
- Broadcasts for marketing with audiences and unsubscribe
- Logs, analytics and suppression lists
Cons
- Short log retention on lower plans
- Fewer advanced features than SendGrid
- Younger provider; reputation building
MachineMail vs Resend: FAQ
Which is cheaper, MachineMail or Resend?
MachineMail starts at $9/mo and Resend at $20/mo. Both prices are checked on the vendors' own pricing pages.
Do MachineMail and Resend have a free plan?
Yes, both MachineMail and Resend have a free plan; paid plans add more usage and features.
Which is better for small businesses, MachineMail or Resend?
MachineMail lists small businesses as a core audience, while Resend is aimed more at developers.