---
title: "Fast2sms (@fast2sms)"
description: "Bulk SMS service provider in India."
account: "fast2sms"
---

# Fast2sms

Bulk SMS service provider in India.

## APIs

5 public APIs with a stored document.
Each links to its markdown overview; the same address with
`/llms.txt` in place of `.md` lists its operations.
Changes across these APIs: https://skmtc.dev/fast2sms/feed.md

- [Wallet Balance API](https://skmtc.dev/fast2sms/apis/wallet-balance-api.md)
- [Developer Webhooks (New) API](https://skmtc.dev/fast2sms/apis/developer-webhooks-new-api.md): Messaging webhooks: register and manage callbacks for SMS, OTP, WhatsApp and RCS events
- [WhatsApp API](https://skmtc.dev/fast2sms/apis/whatsapp-api.md): WhatsApp Business: manage phone numbers, business profiles, blocked users and message logs
- [OTP API](https://skmtc.dev/fast2sms/apis/otp-api.md): Mobile verification: send, resend and verify one-time passwords by SMS
- [DLT SMS API](https://skmtc.dev/fast2sms/apis/dlt-sms-api.md): SMS: send bulk texts, check delivery reports, and register DLT senders, entities and templates