Transactional email APIs · #4 of 16 · ↑ Amazon SES · ↓ Mailgun
SendGrid
SendGrid ranks #4 of 16 in transactional email apis in the week of 28 September 2026, with a visibility score of 47 across ChatGPT, Claude, Gemini and Perplexity. It was named in 72% of the answers we sampled.
sampled: 3 of 4 assistants this week
SendGrid shows up in 45 of 62 answers across AI assistants, with an overall score of 47 out of 100. Claude rates it highest at 53, while ChatGPT and Perplexity both put it at 44. It's named in every answer to questions like "What are the best transactional email APIs?", "Which transactional email provider has the best developer experience?", and others covering webhooks, deliverability, and serverless setups. The one place it doesn't appear is the question about tools for testing and previewing emails before sending.
this is mine claim it, free, forever. We also check whether ChatGPT and Claude can read sendgrid.com.
Who's talking about you
| assistant | score | named in, this week | usual spot, this week |
|---|---|---|---|
| ChatGPT | 44 | 65% of answers | #4.2 |
| Claude | 53 | 85% of answers | #5.1 |
| Gemini | not sampled this week | ||
| Perplexity | 44 | 65% of answers | #4.1 |
Questions you win
| question | named in | best spot |
|---|---|---|
| What's the best email API that also handles marketing campaigns? | 3 of 3 | #1 |
| What's the best email API with webhooks for bounces and opens? | 3 of 3 | #2 |
| What are the best transactional email APIs? | 4 of 4 | #3 |
| Which transactional email provider has the best developer experience? | 4 of 4 | #3 |
| What's the best email API for a Next.js or serverless app? | 3 of 3 | #3 |
| Which email API has the best deliverability? | 3 of 3 | #4 |
| What's the best SMTP service for an app? | 3 of 3 | #4 |
| What's the best email API with React or JSX email templates? | 3 of 3 | #4 |
| What's the best email API in 2026? | 2 of 3 | #3 |
| What's the best way to send password reset and verification emails from my app? | 2 of 3 | #3 |
| What's the best transactional email provider for high volume at low cost? | 2 of 3 | #3 |
| What's the best email API for developers? | 2 of 3 | #4 |
| Which email API has the best free tier? | 2 of 3 | #4 |
| What's the best email service for sending receipts and order confirmations? | 2 of 3 | #4 |
| Which transactional email service is best for a startup? | 2 of 3 | #5 |
| What's the cheapest way to send transactional email at scale? | 2 of 3 | #6 |
| What's the best alternative to SendGrid? | 1 of 3 | #1 |
| What's the best open-source or self-hosted transactional email server? | 1 of 3 | #6 |
| What's the best email API for a European company that needs EU data hosting? | 1 of 3 | #6 |
Questions you lose
| question | who got named instead |
|---|---|
| What's the best tool to test and preview emails before sending? | nobody in particular |
Assistants cited 10 pages for questions in this category that name your rivals and not you. Claim to see them. See all sources for Transactional email APIs.
In their words
- ChatGPT“→ Consider Mailgun, SendGrid, Amazon SES, etc., but have legal/security review confirm whether an EU region meets your actual requirement.”
- Claude“SendGrid (Twilio) — the default answer.”
- Gemini“Resend is often described as the "Vercel of transactional email." It was built from scratch specifically to fix the aging DX of legacy providers like SendGrid.”
Closest rivals
- SendGrid vs Mailgun41
- SendGrid vs Amazon SES59
- SendGrid vs Resend61
- SendGrid vs Postmark63
- SendGrid vs Brevo23
All SendGrid alternatives · Full Transactional email APIs leaderboard · Sources