Is Atomic Mail API down?
Current status, daily uptime history and troubleshooting for the Atomic Mail API (Email).
No, Atomic Mail is up
Atomic Mail answered our last daily check (Oct 24, 2026, 12:25 UTC) in 357 ms with HTTP 200.
Checking Atomic Mail now…
Sending a request from our server.
Atomic Mail API uptime history
- Uptime
- 2 checks so far
- Last check
- Oct 24, 2026, 12:25 UTC
- Response
- 357 ms · HTTP 200
- Last up
- Now
We check Atomic Mail's listed URL (https://atomic-mail.github.io/atomic-mail-agentic/) once a day. History started when Atomic Mail was first checked, so new entries show fewer than 30 days.
Atomic Mail API not working for you?
- Atomic Mail needs an API key. A 401 or 403 usually means a missing, expired or mis-sent credential: check whether it belongs in a header or the query string.
- A 429 response means you're being rate-limited. Slow down, cache responses, and respect any Retry-After header.
- If calls fail only in the browser with a CORS error, Atomic Mail may not allow cross-origin requests. Call it from your server instead.
- If it works from one network but not another, check firewalls, VPNs and regional blocks.
- Check the provider's documentation, status page or social accounts for planned maintenance or a changed endpoint.
Email APIs up at their last check
- 1
Kickbox API
Online · 1026 msEmail verification API. A free email API by Powered by Kickbox.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS - 2
mail.gw API
Online · 546 msAPI for creating temporary email accounts.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS - 3
mail.tm API
Online · 454 msTemporary Email Service. A free email API by Mail.tm.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS - 4
MailSenpai DNS Check API
Online · 805 msCheck a domain's SPF, DKIM, DMARC and MX records and get what to fix, with the values to publish.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS - 5
Email Validator by LifeStep API
Online · 1178 msValidate email syntax and MX, detect disposable/role addresses, suggest typo fixes.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
Atomic Mail API status FAQ
Is Atomic Mail API down right now?
Atomic Mail answered our last daily check (Oct 24, 2026, 12:25 UTC) in 357 ms with HTTP 200. This page also runs a live check from our server when you open it, so you can see whether Atomic Mail is responding at this moment.
How do you check whether Atomic Mail API is up?
Once a day our checker requests Atomic Mail's listed URL (https://atomic-mail.github.io/atomic-mail-agentic/) and records whether it answers within 15 seconds. Answers like 401 (needs a key), 403 (blocks bots) or 429 (rate-limited) count as up, because the server responded. The listed URL is often the documentation page, so an API endpoint can occasionally fail while its docs stay up.
What can I use if Atomic Mail API is down?
Free Email APIs that were up at their last check include Kickbox, mail.gw, mail.tm. See the full list of Atomic Mail alternatives for a comparison.
Why does Atomic Mail API work for others but not for me?
Atomic Mail needs an API key. A 401 or 403 usually means a missing, expired or mis-sent credential: check whether it belongs in a header or the query string. A 429 response means you're being rate-limited. Slow down, cache responses, and respect any Retry-After header. If calls fail only in the browser with a CORS error, Atomic Mail may not allow cross-origin requests. Call it from your server instead.