Zenlogin – API to email users when a suspicious login happens
Zenlogin detects suspicious logins so you don't have to. A single endpoint API to notify your users when there's been suspicious login activity on their account.
Zenlogin – API to email users when a suspicious login happens launched on April 2, 2021 with 24 votes, #1,192 of 3,754 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 5 years on.
In plain words
Zenlogin is an API for developers that detects suspicious login attempts and automatically sends email notifications to users. It integrates into authentication systems to flag unusual access patterns and alert account holders. Built for developers who want to add security monitoring to their applications, Zenlogin streamlines the process of identifying and notifying users about potentially unauthorized login activity without requiring custom development.
written from the facts on this page · September 2026
From the sources
AI-Powered email notifications for every unusual login attempt. View an example email Zenlogin is built to make developers lives easier. Preset sensitivity intervals, simple integration and prebuilt notification emails. A security API through and through. We guarantee this is the easiest way to add a layer of security to your application, website or service. Smart AI that detects threats that wouldn't otherwise be possible, and notifies your users of them. Beautiful maps built into email notifications so your users can quickly visualize if their account has been compromised. Create special rules so your team members can get notified whenever a login attempt happens on their account. Keep…from zenlogin.co
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Source: Show HN post ↗
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