Blog

Guides, tutorials, and comparisons for developers building with LANGR API.

• SMS OTP API Guide — Verify Users with One API Call
  Learn how to implement SMS OTP verification using the LANGR API. Send and verify OTP codes with a single API and TypeScript SDK.
  2026-06-05
• How to Send Multilingual Transactional Email with One API
  Send transactional email in 120+ languages using the LANGR API. Combine Mail and i18n services for global email delivery.
  2026-06-04
• LANGR vs Twilio vs SendGrid vs Resend — Choosing the Right API
  Compare LANGR API with Twilio, SendGrid, and Resend. See which developer API covers email, SMS, auth, payments, and translation in one platform.
  2026-06-03
• How to Send Email from Next.js with LANGR API
  Complete tutorial for sending transactional email from Next.js using LANGR API. Server actions, API routes, and edge functions.
  2026-06-02
• Best Free Email API in 2026 — Send Transactional Email for $0
  Compare the best free email APIs in 2026. LANGR, Resend, SendGrid, and Mailgun free tiers for transactional email delivery.
  2026-06-01
• Implement SMS OTP Verification in Node.js — Complete Guide
  Step-by-step guide to adding SMS OTP phone verification to your Node.js app using LANGR API. Express, Fastify, and plain Node examples.
  2026-05-31
• Why We Built an All-in-One Developer API
  The story behind LANGR API — why we combined email, SMS, auth, payments, SEO, content, and i18n into a single API with one SDK.
  2026-05-30