The latest articles on DEV Community by Aimly (@aikota). https://dev.to/aikota https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F4145094%2F7781cdbf-f5da-420e-8c1d-32d5ad27d480.jpg https://dev.to/aikota en Aimly Sun, 27 Sep 2026 07:40:07 +0000 https://dev.to/aikota/i-built-a-free-email-verification-api-100-callsday-1cp0 https://dev.to/aikota/i-built-a-free-email-verification-api-100-callsday-1cp0 <p>I built a simple email verification API using FastAPI + Python.</p> <p>Why? Because email validation is crucial for any SaaS product,<br> but most services charge per API call.</p> <p>Features:<br> • RFC 5322 format validation<br> • MX record checking<br> • 100 free calls per day<br> • REST API, 10ms response time</p> <p>Source code: <a href="https://github.com/Ai-Kota/c9-email-api" rel="noopener noreferrer">https://github.com/Ai-Kota/c9-email-api</a><br> Live demo: <a href="https://ai-kota.github.io/c9-email-api/" rel="noopener noreferrer">https://ai-kota.github.io/c9-email-api/</a></p> <p>Would love feedback from the dev community!</p> <p>#python #api #fastapi #startup #email</p> <p>Tags: python, api, fastapi, startup, email</p> api backend fastapi python