Email APIs Software Pricing (2026)
What 9 email apis tools actually charge, taken from their own pricing pages and re-checked as they change. Cheapest first.
Pricing verified Sep 29, 2026
Prices here change. You'll hear about it.
Outmano watches pricing, features, roadmaps and reviews across your market, then sends one weekly brief: what changed, and what it means for you.
Email APIs pricing at a glance
| Product | Entry price | Plans | Free plan | Free trial |
|---|---|---|---|---|
| NeverBounce | $8/mo | 3 | No | Yes |
| Mailgun | $15/mo | 4 | Yes | Yes |
| Postmark | $15/mo | 4 | Yes | Yes |
| SendGrid | $19/mo | 4 | Yes | Yes |
| Resend | $20/mo | 4 | Yes | No |
| MailReach | $25/mo | 2 | No | No |
| Bouncer | $35/mo | 1 | No | No |
| ZeroBounce | $99/mo | 2 | Yes | No |
| Kickbox | Custom | 2 | Yes | No |
Every email apis tool we track, cheapest first
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NeverBounce
Real-time email verification.
Plans: Pay as you go $8/mo · Growth $49/mo · Enterprise Contact Sales
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Mailgun
Email API for developers.
Mailgun sits mid-pack in the transactional email space — pricier than bare-bones API-only competitors but cheaper than enterprise-grade ESPs, aiming at developers and growing SaaS teams who want reliable deliverability without paying for a full marketing suite. The free month on Foundation and Scale is clearly there to nudge fence-sitters into the paid tiers before the meter starts running.
Plans: Free $0/mo · Basic $15/mo · Foundation $35/mo · Scale $90/mo
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Postmark
Fast, reliable transactional email.
Postmark sits mid-to-premium in transactional email, priced above bare-bones SMTP relays but below enterprise-grade platforms with heavy marketing-automation bolt-ons. They're not competing on rock-bottom per-email cost — they're selling deliverability reputation and simplicity to teams who got burned by their emails landing in spam elsewhere.
Plans: Free $0/mo · Basic $15/mo · Pro $16/mo · Platform $18/mo
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SendGrid
Transactional and marketing email.
Sits in the middle of the email service market — more expensive than basic providers like Mailgun but cheaper than enterprise-focused players. They're targeting developers and growing businesses who need reliability without enterprise complexity.
Plans: Free Trial $0/mo · Essentials $19/mo · Pro $89/mo · Premier Contact Sales
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Resend
Email API for developers.
Resend sits in the lean, developer-first middle of the transactional email market — cheaper and simpler than Postmark or SendGrid's enterprise tiers, but not trying to compete on rock-bottom price like some bulk-email tools. They're clearly chasing developers and startups who want clean APIs and predictable pricing over legacy ESPs with clunky dashboards.
Plans: Free $0/mo · Pro $20/mo · Scale $90/mo · Custom Contact Sales
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MailReach
Email warmup and spam testing.
The $25 entry point undercuts most dedicated warm-up tools and makes MailReach the accessible pick for anyone dipping into cold email without a big budget. But the $135 Spam Tester tier signals they're not afraid to charge premium rates once you need serious diagnostic firepower, so they're playing both ends rather than sitting neatly in one lane.
Plans: All-In-One $25/mo · Spam Tester $135/mo
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Bouncer
Easy email verification API.
Bouncer sits in the middle of the email verification pack — not a rock-bottom option like some bulk verifiers, but cheaper than premium deliverability suites bundling extra tooling. They're clearly going after teams who want transparent, no-subscription pricing over vendors that force monthly commitments or lock verification behind bigger platform packages.
Plans: Email Verification $35/mo
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ZeroBounce
Email validation and deliverability.
They're playing in the middle of the email-verification pack — not fighting on rock-bottom per-credit price like bulk-only competitors, but not positioning as a premium all-in-one platform either. The pay-as-you-go option is the real competitive weapon here, letting them undercut subscription-only rivals for low-volume or sporadic senders.
Plans: Freemium $0/mo · ZeroBounce ONE™ $99/mo
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Kickbox
Email verification for senders.
Kickbox sits in the middle of the email verification pack — not the rock-bottom bulk option, but not charging a premium subscription tax either. They're courting teams who want transparent, no-commitment pricing over vendors that lock verification behind monthly plans or force annual contracts.
Plans: Pay As You Go $0/mo · Enterprise Contact Sales
Email APIs Software Pricing FAQ
- How much does email apis software cost?
- Entry prices run from $8/mo (NeverBounce) to $99/mo (ZeroBounce), with a median entry price of $19/mo across the 8 priced products we track.
- What is the cheapest email apis software?
- NeverBounce has the lowest entry price of the email apis software we track, at $8/mo. Mailgun ($15/mo) and Postmark ($15/mo) are next. Mailgun and Postmark are free to start on.
- Is there free email apis software?
- Yes — Mailgun, Postmark, SendGrid and 3 more offer a free plan.
- How is email apis software usually priced?
- 7 of the 9 email apis tools we track use usage based pricing, against 2 on hybrid.