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Transactional email APIs

Loops vs Mailtrap

as AI assistants see them, week of 2026-09-28

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Right now Mailtrap is ahead of Loops in AI answers, scoring 13 overall against Loops' 4. Mailtrap gets named in 11 of 62 answers versus 6 of 62 for Loops, and it wins the head-to-head too, coming out ahead on 7 questions compared to Loops' 4, with 9 ties. Mailtrap sweeps "What's the best tool to test and preview emails before sending?" at 3 of 3 answers, and does well on free-tier questions. Loops shows up most for React or JSX email template questions, named in 2 of 3 answers, but misses entirely on deliverability and high-volume cost questions.

Head to head

metricLoopsMailtrap
score413
questions won58

By assistant

Loops

assistantscorenamed in, this weekusual spot, this week
ChatGPT35% of answers#6.0
Claude1125% of answers#9.8
Gemininot sampled this week
Perplexity00% of answers

Mailtrap

assistantscorenamed in, this weekusual spot, this week
ChatGPT710% of answers#4.0
Claude35% of answers#5.0
Gemininot sampled this week
Perplexity2840% of answers#4.0

Where they differ

Only Loops gets named for

  • What's the best email API with React or JSX email templates?
  • What's the best email API for a Next.js or serverless app?
  • What's the best alternative to SendGrid?
  • What's the best email API in 2026?

Only Mailtrap gets named for

  • What's the best tool to test and preview emails before sending?
  • Which email API has the best free tier?
  • Which email API has the best deliverability?
  • What's the best email service for sending receipts and order confirmations?
  • What's the best SMTP service for an app?
  • What's the best email API with webhooks for bounces and opens?
  • Which transactional email provider has the best developer experience?

More comparisons

Not sold on either?

Scores count how often each assistant names a product, weighted by position. How the score works · Full Transactional email APIs leaderboard