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Atomic Mail
Email for AI agents: programmatic inbox creation and send/receive over JMAP.
Atomic Mail API is a free Email API that requires apiKey authentication, is served over HTTPS and has unconfirmed CORS support.
- Authentication
- apiKey
- HTTPS
- Yes
- CORS
- Unknown
- Category
Visit documentation ↗atomic-mail.github.io
About Atomic Mail Docs
A working inbox for your AI agent in three steps — AgentSkill, MCP or REST. Register with proof of work, then send and read over JMAP.
- Provider
- Atomic Mail Docs
- Website
- atomic-mail.github.io ↗
Details from atomic-mail.github.io.
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Atomic Mail API alternatives
No authHTTPSNo CORS
apiKeyHTTPSCORS ?
apiKeyHTTPSCORS
apiKeyHTTPSNo CORS
No authHTTPSCORS
Atomic Mail API FAQ
Who provides the Atomic Mail API?
The Atomic Mail API is provided by Atomic Mail Docs (atomic-mail.github.io). A working inbox for your AI agent in three steps — AgentSkill, MCP or REST. Register with proof of work, then send and read over JMAP.
Is the Atomic Mail API free?
Yes. The Atomic Mail 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 Atomic Mail API require an API key?
Yes. The Atomic Mail API uses apiKey authentication, so you need to register for credentials before making requests.
Can I call the Atomic Mail API from the browser?
CORS support for the Atomic Mail API is unknown. Test a request from the browser, and fall back to a server-side call if it is blocked.
Does the Atomic Mail API support HTTPS?
Yes. The Atomic Mail API is served over HTTPS, so it's safe to use in production.