Transactional email APIs · #6 of 16 · ↑ Mailgun · ↓ Mailtrap
Brevo
Brevo ranks #6 of 16 in transactional email apis in the week of 28 September 2026, with a visibility score of 23 across ChatGPT, Claude, Gemini and Perplexity. It was named in 32% of the answers we sampled.
sampled: 3 of 4 assistants this week
Brevo shows up in 20 of 62 answers across transactional email API questions, landing an overall score of 23 out of 100 (Perplexity rates it highest at 34, Claude at 21, ChatGPT at 14). AI assistants most consistently name Brevo for free tier questions (3 of 3 answers), marketing-plus-transactional combos (3 of 3), and EU data hosting needs (3 of 3), plus general "best transactional email API" asks (3 of 4). It never comes up for webhook support, high-volume low-cost sending, self-hosted options, or deliverability-focused questions, suggesting assistants see it as more of a free-tier, EU-friendly, all-in-one pick than a deliverability or scale specialist.
Who's talking about you
| assistant | score | named in, this week | usual spot, this week |
|---|---|---|---|
| ChatGPT | 14 | 15% of answers | #1.3 |
| Claude | 21 | 35% of answers | #5.3 |
| Gemini | not sampled this week | ||
| Perplexity | 34 | 45% of answers | #3.1 |
Questions you win
| question | named in | best spot |
|---|---|---|
| Which email API has the best free tier? | 3 of 3 | #1 |
| What's the best email API that also handles marketing campaigns? | 3 of 3 | #1 |
| What's the best email API for a European company that needs EU data hosting? | 3 of 3 | #1 |
| What are the best transactional email APIs? | 3 of 4 | #6 |
| Which transactional email service is best for a startup? | 2 of 3 | #2 |
| What's the best alternative to SendGrid? | 2 of 3 | #4 |
| What's the best email service for sending receipts and order confirmations? | 1 of 3 | #3 |
| What's the best email API for developers? | 1 of 3 | #5 |
| What's the best email API for a Next.js or serverless app? | 1 of 3 | #5 |
| What's the best email API in 2026? | 1 of 3 | #8 |
Questions you lose
| question | who got named instead |
|---|---|
| Which email API has the best deliverability? | Postmark, Amazon SES, Mailtrap |
| What's the cheapest way to send transactional email at scale? | Amazon SES, MailerSend, Elastic Email |
| What's the best SMTP service for an app? | Postmark, Resend, Amazon SES |
| Which transactional email provider has the best developer experience? | Resend, Postmark, SendGrid |
| What's the best way to send password reset and verification emails from my app? | Postmark, Amazon SES, Resend |
| What's the best email API with React or JSX email templates? | Resend, Postmark |
| What's the best open-source or self-hosted transactional email server? | Postal |
| What's the best tool to test and preview emails before sending? | nobody in particular |
| What's the best email API with webhooks for bounces and opens? | Postmark, Resend, Mailgun |
| What's the best transactional email provider for high volume at low cost? | Amazon SES, Resend, Elastic Email |
Assistants cited 10 pages for questions in this category that name your rivals and not you. See all sources for Transactional email APIs.
In their words
- ChatGPT“ahasend.comdevelopers.brevo.com”
- Claude“Brevo (formerly Sendinblue) — French, EU-hosted by default.”
- Perplexity“For most European companies, Brevo is the best default choice: it offers an email API, EU hosting in France and Germany, and a broad feature set for transactional and marketing email.”
Closest rivals
All Brevo alternatives · Full Transactional email APIs leaderboard · Sources