Email
Mailtrap
Email API and SMTP for sending transactional and bulk emails, with email testing sandbox for safe development
apiKeyHTTPSCORS ?
Email
Nitrosend
Send marketing and transactional email; manage contacts, segments and flows.
Nitrosend API is a free Email API that requires apiKey authentication, is served over HTTPS and does not support CORS, so it should be called from a server.
- Authentication
- apiKey
- HTTPS
- Yes
- CORS
- No
- Category
Visit documentation ↗docs.nitrosend.com
About Nitrosend
Multi-channel marketing automation API. Send email campaigns, build automation flows, manage contacts and segments, track events, and configure your Brand Kit — all via a single REST API.
- Provider
- Nitrosend
- Website
- docs.nitrosend.com ↗
Details from docs.nitrosend.com.
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Nitrosend API FAQ
Who provides the Nitrosend API?
The Nitrosend API is provided by Nitrosend (docs.nitrosend.com). Multi-channel marketing automation API. Send email campaigns, build automation flows, manage contacts and segments, track events, and configure your Brand Kit — all via a single REST API.
Is the Nitrosend API free?
Yes. The Nitrosend API is listed in the Email category of the public-apis directory, which only includes APIs that are free or have a free tier. Check its documentation for rate limits and paid plans.
Does the Nitrosend API require an API key?
Yes. The Nitrosend API uses apiKey authentication, so you need to register for credentials before making requests.
Can I call the Nitrosend API from the browser?
Not directly. The Nitrosend API does not allow CORS, so call it from a server, serverless function or proxy instead of front-end JavaScript.
Does the Nitrosend API support HTTPS?
Yes. The Nitrosend API is served over HTTPS, so it's safe to use in production.