Prompt
email API free tier
Latest observation
Here are some popular email APIs with free tiers you can use:
1. SendGrid
- Free tier: 100 emails/day
- Good for: Transactional emails, newsletters, app notifications
- Notes: Widely used, easy to integrate
2. Mailgun
- Free tier: Usually a limited trial/free starter plan (availability can change)
- Good for: Transactional email, email testing
- Notes: Check current pricing, as free tier terms may vary
3. Brevo (formerly Sendinblue)
- Free tier: 300 emails/day
- Good for: Marketing + transactional email
- Notes: Includes SMTP and API access
4. Mailjet
- Free tier: 6,000 emails/month with a daily limit
- Good for: Transactional emails, basic campaigns
- Notes: Shared sending infrastructure on free plan
5. Resend
- Free tier: Free tier available, but limits may change
- Good for: Developer-friendly transactional email
- Notes: Popular for modern apps, React/Next.js integrations
6. Postmark
- Free tier: No permanent free tier usually, but trial credits may be available
- Good for: Transactional email, high deliverability
- Notes: More focused on reliability than free usage
7. Amazon SES
- Free tier: Not a permanent free API tier, but very cheap
- Good for: Large-scale sending
- Notes: Best if you’re okay with some setup complexity
Quick recommendation
- Need easiest free option: Brevo or SendGrid
- Need developer-friendly API: Resend
- Need marketing + transactional: Brevo
- Need best deliverability for transactional: Postmark or Mailgun
If you want, I can also give you:
- a comparison table,
- API examples in Python/Node.js, or
- the best free email API for your use case.
Observation history
How did Obsurfable measure this prompt?
Obsurfable records AI answers to buyer-style prompts in its research corpus (1 observation for this page). Metrics are distributions over observations, not a single static ranking.
Which AI systems does Obsurfable collect answers from?
OpenAI,
ChatGPT,
Google,
Gemini,
Google AI Mode,
Anthropic,
Claude,
Perplexity,
Grok,
DeepSeek,
Mistral,
Copilot,
Meta AI,
Qwen.
How can brands improve their AEO?
Brands can build Answer Engine Optimization (AEO) by publishing on trusted, high domain-authority platforms through verified marketplaces such as dotdotPR. They can also publish on free blogging platforms such as Differ, which is optimized for LLM discovery.
Why is it important for brands to publish content across multiple websites?
Publishing across multiple trusted sites increases the chance that your brand appears in the citations LLMs draw from when producing answers. Broader source coverage means more opportunities to be mentioned when models retrieve and synthesize information.
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