Compare
Compare email APIs
Rasket compared with Resend, SendGrid, Postmark, Mailgun, MailerSend and Brevo on the rows a developer buys on, every fact dated and linked to its source.
- Rasket
- Rasket is an email API for developers: one REST API, a dashboard and typed SDKs for transactional email and broadcasts, with inbound mail, signed webhooks and an MCP server in the same product and on the same key.
- How these pages are written
- Every claim about another product is read from that company's own pricing or documentation page, linked, and dated. Anything we could not read from a public page says Not published rather than a guess, and each page has a section naming the rows the other product wins. We build Rasket, so the pages are written by an interested party — which is why every cell is checkable.
Plans and prices, side by side
The rows a buyer reads first, for all seven. The rest — inbound, webhooks, templates, automations, agent tooling — are on the page for each comparison.
| Criterion | Rasket | Resend | SendGrid | Postmark | Mailgun | MailerSend | Brevo |
|---|---|---|---|---|---|---|---|
| Official SDKs | Node.js and Python Rasket, source 9 | Node.js, PHP, Python, Ruby, Go, Java, Rust, Elixir and .NET Resend, source 20 | C#, Go, Java, Node.js, PHP, Python and Ruby SendGrid, source 27 | Node.js and TypeScript, Python, Ruby, PHP, Java and .NET Postmark, source 32 | Ruby, PHP, Python, Java, Go and Node.js Mailgun, source 40 | PHP, Node.js, Go, Python, Ruby and Java MailerSend, source 43 | Node.js, Python and PHP Brevo, source 52 |
| Free plan | 3,000 emails a month, 100 a day, 3 domains Rasket, source 10 | 3,000 emails a month, 100 a day, 3 domains Resend, source 13 | No free plan — a 60-day trial of 100 emails a day SendGrid, source 23 | 100 emails a month, and it does not expire Postmark, source 28No overage is allowed on it. | 100 emails a day Mailgun, source 35 | 500 emails a month, 1 domain, 1 template MailerSend, source 41 | Not published Brevo, source 53Their pricing page builds its plan table in the browser; nothing could be read from the page itself on the day. |
| Entry paid plan | $20 a month for 50,000 emails Rasket, source 10 | $20 a month for 50,000 emails Resend, source 13 | $19.95 a month for 50,000 emails SendGrid, source 23The Essentials 50K plan. | $15 a month for 10,000 emails Postmark, source 28The Basic plan. Fifty thousand emails is $55. | $15 a month for 10,000 emails Mailgun, source 35The Basic plan. | $7 a month for 5,000 emails MailerSend, source 41The Hobby plan, paying monthly; the page opens on yearly billing, where the same plan is $5.60 a month. | Not published Brevo, source 53Same page, same reason. |
| Extra emails, per 1,000 | $0.60 Rasket, source 10The rate steps down to $0.25 as the Scale ladder climbs. | $0.90 Resend, source 13 | $1.30 SendGrid, source 23The page prices extra emails at $0.0013 each on Essentials 50K, which is $1.30 per thousand. | $1.80 Postmark, source 28Basic, between 10,000 and 125,000 emails a month. | From $1.80 on Basic Mailgun, source 35From $1.30 on Foundation and from $1.10 on Scale. | $1.30 on Starter and Professional MailerSend, source 41The page does not state a rate for the entry Hobby plan. | Not published Brevo, source 53Same page, same reason. |
| Data retention | 30 days on the self-serve plans Rasket, source 10Custom retention on a Custom plan. | 30 days on the free plan Resend, source 13The pricing page does not state a retention window for the paid plans. | 3 days of searchable activity, 7 on Pro and Premier SendGrid, source 23 | 45 days, up to 365 with an add-on Postmark, source 28The retention add-on starts at $5 a month and needs a Pro plan. | 1 day of logs on Free and Basic, 5 on Foundation, 30 on Scale Mailgun, source 35 | 1 day on Free and Hobby, 7 on Starter, 30 on Professional MailerSend, source 41 | Not published Brevo, source 53 |
| Dedicated IP | An add-on on Scale Rasket, source 10 | $30 a month, above 3,000 emails a day Resend, source 13 | One included on Pro and Premier SendGrid, source 23The page says more can be added on; it does not state their price. | $50 a month per IP, on Pro and above Postmark, source 28For senders above 300,000 emails a month. | One included on Scale, extra IPs $59 a month each Mailgun, source 35 | An add-on above 100,000 emails a week MailerSend, source 41The page does not state its price. | Not published Brevo, source 53 |
| SMTP relay | No Rasket, source 11Sending is the REST API, the SDKs and the MCP server. There is no relay to point a mail client at. | Yes Resend, source 21 | Yes SendGrid, source 23 | Yes Postmark, source 33 | Yes Mailgun, source 35 | Yes MailerSend, source 41 | Yes Brevo, source 54 |
| Best for | Developers who want sending, receiving and broadcasts behind one API key | Teams writing their emails as React components | Teams already inside Twilio who want email on the same account | Teams who want transactional and bulk mail kept on separate streams | Teams who route inbound mail with rules and want a relay in front of it | Small projects that want the cheapest paid plan on this list | Teams who want marketing, CRM and transactional email from one vendor |
Rasket compared, one product at a time
- Rasket vs ResendResend is an email API with a dashboard, nine official SDKs and a documentation set written for agents as well as people; its transactional plans and its marketing plans are priced apart.Best for: Teams writing their emails as React components
- Rasket vs SendGridSendGrid is Twilio's email product: an API and an SMTP service with seven official libraries, sold as Email API plans, with its campaign tooling bought as a second subscription.Best for: Teams already inside Twilio who want email on the same account
- Rasket vs PostmarkPostmark is a transactional email service with six official libraries, an SMTP option and Message Streams, which keep transactional and broadcast mail on separate sending infrastructure.Best for: Teams who want transactional and bulk mail kept on separate streams
- Rasket vs MailgunMailgun is an email API from Sinch with six official SDKs, an SMTP relay, rule-based inbound routing and signed webhooks, sold on plans whose log retention grows with the tier.Best for: Teams who route inbound mail with rules and want a relay in front of it
- Rasket vs MailerSendMailerSend is an email API with six official libraries, an SMTP relay, signed webhooks and an MCP server, sold on small plans that start below every other entry price here.Best for: Small projects that want the cheapest paid plan on this list
- Rasket vs BrevoBrevo is a marketing platform with a transactional email API attached: an SMTP relay, three official SDKs, secured webhooks, inbound parsing, idempotency keys for batch sends and an MCP server over its developer documentation.Best for: Teams who want marketing, CRM and transactional email from one vendor
Sources
- 1. Rasket — http://localhost:3000/features/receiving. Read 2026-09-16.
- 2. Rasket — http://localhost:3000/features/broadcasts. Read 2026-09-16.
- 3. Rasket — http://localhost:3000/features/webhooks. Read 2026-09-16.
- 4. Rasket — http://localhost:3000/docs/idempotency. Read 2026-09-16.
- 5. Rasket — http://localhost:3000/features/templates. Read 2026-09-16.
- 6. Rasket — http://localhost:3000/features/automations. Read 2026-09-16.
- 7. Rasket — http://localhost:3000/features/agents. Read 2026-09-16.
- 8. Rasket — http://localhost:3000/llms.txt. Read 2026-09-16.
- 9. Rasket — http://localhost:3000/about. Read 2026-09-16.
- 10. Rasket — http://localhost:3000/pricing. Read 2026-09-16.
- 11. Rasket — http://localhost:3000/features/email-api. Read 2026-09-16.
- 12. Rasket — http://localhost:3000/features/domains. Read 2026-09-16.
- 13. Resend — https://resend.com/pricing. Read 2026-09-16.
- 14. Resend — https://resend.com/docs/webhooks/verify-webhooks-requests. Read 2026-09-16.
- 15. Resend — https://resend.com/docs/webhooks/retries-and-replays. Read 2026-09-16.
- 16. Resend — https://resend.com/docs/dashboard/emails/idempotency-keys. Read 2026-09-16.
- 17. Resend — https://resend.com/docs/dashboard/templates/version-history. Read 2026-09-16.
- 18. Resend — https://resend.com/docs/dashboard/automations/introduction. Read 2026-09-16.
- 19. Resend — https://resend.com/llms.txt. Read 2026-09-16.
- 20. Resend — https://resend.com/docs/llms.txt. Read 2026-09-16.
- 21. Resend — https://resend.com/docs/send-with-smtp. Read 2026-09-16.
- 22. Resend — https://resend.com/docs/dashboard/domains/introduction. Read 2026-09-16.
- 23. SendGrid — https://www.twilio.com/en-us/products/email-api/pricing. Read 2026-09-16.
- 24. SendGrid — https://www.twilio.com/docs/sendgrid/for-developers/tracking-events/event. Read 2026-09-16.
- 25. SendGrid — https://www.twilio.com/docs/llms.txt. Read 2026-09-16.
- 26. SendGrid — https://www.twilio.com/docs/ai/mcp. Read 2026-09-16.
- 27. SendGrid — https://www.twilio.com/docs/sendgrid/for-developers/sending-email/libraries. Read 2026-09-16.
- 28. Postmark — https://postmarkapp.com/pricing. Read 2026-09-16.
- 29. Postmark — https://postmarkapp.com/developer/webhooks/webhooks-overview. Read 2026-09-16.
- 30. Postmark — https://postmarkapp.com/llms.txt. Read 2026-09-16.
- 31. Postmark — https://postmarkapp.com/developer/api/templates-api. Read 2026-09-16.
- 32. Postmark — https://postmarkapp.com/developer/integration/official-libraries. Read 2026-09-16.
- 33. Postmark — https://postmarkapp.com/developer/user-guide/send-email-with-smtp. Read 2026-09-16.
- 34. Postmark — https://postmarkapp.com/developer/api/domains-api. Read 2026-09-16.
- 35. Mailgun — https://www.mailgun.com/pricing/. Read 2026-09-16.
- 36. Mailgun — https://documentation.mailgun.com/docs/mailgun/user-manual/webhooks/securing-webhooks. Read 2026-09-16.
- 37. Mailgun — https://documentation.mailgun.com/docs/mailgun/user-manual/webhooks/webhooks. Read 2026-09-16.
- 38. Mailgun — https://documentation.mailgun.com/llms.txt. Read 2026-09-16.
- 39. Mailgun — https://documentation.mailgun.com/docs/mailgun/mcp. Read 2026-09-16.
- 40. Mailgun — https://documentation.mailgun.com/docs/mailgun/sdk/introduction. Read 2026-09-16.
- 41. MailerSend — https://www.mailersend.com/pricing. Read 2026-09-16.
- 42. MailerSend — https://developers.mailersend.com/api/v1/webhooks.html. Read 2026-09-16.
- 43. MailerSend — https://developers.mailersend.com/. Read 2026-09-16.
- 44. MailerSend — https://developers.mailersend.com/mcp. Read 2026-09-16.
- 45. MailerSend — https://www.mailersend.com/llms.txt. Read 2026-09-16.
- 46. Brevo — https://developers.brevo.com/docs/inbound-parse-webhooks. Read 2026-09-16.
- 47. Brevo — https://developers.brevo.com/llms.txt. Read 2026-09-16.
- 48. Brevo — https://developers.brevo.com/docs/secured-webhooks. Read 2026-09-16.
- 49. Brevo — https://developers.brevo.com/docs/heterogenous-versions-batch-emails. Read 2026-09-16.
- 50. Brevo — https://developers.brevo.com/guides/track-website-activity. Read 2026-09-16.
- 51. Brevo — https://developers.brevo.com/docs/mcp-protocol. Read 2026-09-16.
- 52. Brevo — https://developers.brevo.com/docs/api-clients. Read 2026-09-16.
- 53. Brevo — https://www.brevo.com/pricing/. Read 2026-09-16.
- 54. Brevo — https://developers.brevo.com/docs/smtp-integration. Read 2026-09-16.
Last checked 2026-09-16. Prices and plan contents change. Every figure above was read from the linked page on the date beside it; if one has moved since, the page it came from is the one to trust.
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Create a key, verify a domain, and send your first email the same morning.