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Email & SMS APIs

✓ Last verified: 2026-07-15· Source: official provider pricing page· Auto-monitored — report change →

Email and SMS API pricing — Twilio, SendGrid, Resend, Mailgun and Postmark — free tiers, per-message costs and setup guides. Compare them all in the email cost calculator.

Twilio

Programmable SMS, voice, WhatsApp.

SMS from $0.0079Trial

SendGrid

Transactional & marketing email.

from $0/moFree tier

Resend

Modern developer email API (React Email).

from $0/mo3k/mo free

Mailgun

Email API with deliverability tooling & EU regions.

from ~$15/moTrial

Postmark

Fast, deliverability-first transactional email.

from ~$15/mo100/mo free

Vonage (Nexmo)

SMS, voice & 2FA verify. Twilio's closest rival.

~$0.0079/SMSTrial credit

Plivo

Low-cost programmable SMS & voice. Twilio rival, cheaper per message.

~$0.0050/SMSTrial credit

MessageBird (Bird)

Email & SMS · WhatsApp

Omnichannel SMS, WhatsApp & email. Strong global reach.

~$0.0070/SMSTest credit

Sendbird new

In-app chat & calls

Managed chat, moderation & voice/video. Billed per monthly active user.

MAU-basedFree dev plan

Agora new

Real-time voice & video

Low-latency voice, video & live streaming. Priced per 1,000 minutes.

~$0.99–8.99/1k min10k min/mo free

Email Cost Calculator new

SendGrid vs Resend vs SES vs Mailgun vs Postmark for your volume.

free toolCompare

SMS Cost by Country new

Twilio vs Vonage vs MessageBird vs Plivo — per-country SMS price & cheapest provider.

free toolCompare

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