SendGrid
Free trialUntestedOur check runs without a key, so we couldn't test this one. It doesn't mean it's down.
Transactional and marketing email delivery API with templates, webhooks, and delivery analytics.
Example request
curl --request POST --url 'https://api.sendgrid.com/v3/mail/send' -H 'Authorization: Bearer $API_KEY' -H 'Content-Type: application/json' -d '{"personalizations":[{"to":[{"email":"[email protected]"}]}],"from":{"email":"[email protected]"},"subject":"Hello","content":[{"type":"text/plain","value":"Hello, World!"}]}'Free tier, in plain English
No ongoing free plan — new accounts get a 60-day trial capped at 100 emails a day, then must move to a paid plan.
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