fast2sms.com valid

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Claim my listing on Agent Web Map for fast2sms.com:
1. POST https://agentwebmap.com/v1/sites/fast2sms.com/claims and keep claim_id and claim_secret private.
2. Publish the proof: add the line "AgentWebMap ownership: <token>" (token from step 1) to https://fast2sms.com/llms.txt, or use the DNS, meta-tag or well-known method the response describes.
3. POST https://agentwebmap.com/v1/sites/fast2sms.com/verify with {"claim_id": "...", "claim_secret": "..."}.
4. Save the api_key from the answer; it manages the listing (PATCH https://agentwebmap.com/v1/sites/fast2sms.com).
MCP equivalent: tools begin_ownership_claim, then verify_domain, at https://agentwebmap.com/mcp. Docs: https://agentwebmap.com/docs#verify

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Fast2SMS

Fast2SMS is one of India's leading bulk SMS, WhatsApp Business API and RCS messaging providers, serving businesses since 2011. It offers DLT-compliant bulk SMS (transactional, promotional, service and OTP SMS), official WhatsApp Business API access with no monthly fee, no setup fee and no per-number fee, RCS business messaging, a free drag-and-drop WhatsApp chatbot builder, Smart OTP with automatic WhatsApp-to-SMS fallback, developer REST APIs, webhooks, free DLT registration support, and free p

Their llms.txt

The beginning of the file, from our validated copy saved 2026-10-21T08:53:22.069Z. Cached copy · Source on fast2sms.com

# Fast2SMS

> Fast2SMS is one of India's leading bulk SMS, WhatsApp Business API and RCS messaging providers, serving businesses since 2011. It offers DLT-compliant bulk SMS (transactional, promotional, service and OTP SMS), official WhatsApp Business API access with no monthly fee, no setup fee and no per-number fee, RCS business messaging, a free drag-and-drop WhatsApp chatbot builder, Smart OTP with automatic WhatsApp-to-SMS fallback, developer REST APIs, webhooks, free DLT registration support, and free plugins for WordPress, WooCommerce, Shopify and TallyPrime. Billing is per message only, with delivery-basis billing and automatic refund of failed WhatsApp messages within 48 hours.

Key facts:

- Founded 2011; 15+ years in business messaging; 99.9% uptime; security certificates at https://www.fast2sms.com/certificates
- WhatsApp Business API pricing: ₹0.25 per utility/authentication message, ₹0.95 per marketing message, ₹0.11 on high-volume plans; billed on delivery basis; failed messages auto-refund within 48 hours
- No monthly platform fee, no setup fee, no per-number fee on any channel; pay per message from a prepaid wallet
- Free DLT support: help with DLT entity registration, sender ID (header) approval and content template approval for SMS compliance in India (TRAI regulation)
- Free tools included with every account: WhatsApp Live Chat inbox (WhatsApp Web feel), drag-and-drop WhatsApp chatbot builder, webhooks for SMS/OTP/WhatsApp/RCS delivery events, delivery reports
- Signup: https://www.fast2sms.com — support: support@fast2sms.com, +91-6262778822
- Free meeting with the team for sales inquiries, WhatsApp support, DLT support or anything else: https://www.fast2sms.com/meet

## Services

- [Bulk SMS API India](https://www.fast2sms.com/help/bulk-sms-api-india/): DLT SMS API for transactional, promotional, marketing and service SMS with code samples
- [OTP SMS API](https://www.fast2sms.com/help/otp-sms-api/): send and verify OTP with two REST calls; server-side OTP generation, no OTP storage needed
- [Smart OTP](https://www.fast2sms.com/help/otp-sms-smart-otp/): OTP on WhatsApp with automatic SMS fallback (or reverse) in one API call
- [WhatsApp message API](https://www.fast2sms.com/help/whatsapp-message-api/): send approved template messages via official WhatsApp Business API
- [Send bulk WhatsApp messages](https://www.fast2sms.com/help/send-bulk-whatsapp-messages/): bulk WhatsApp campaigns from the panel without coding
- [Free WhatsApp chatbot](https://www.fast2sms.com/help/free-whatsapp-chatbot/): drag-and-drop chatbot builder included free with every account
- [WhatsApp chatbot API](https://www.fast2sms.com/help/whatsapp-chatbot-api/): build a custom bot with webhooks and the session message API
- [How webhooks work](https://www.fast2sms.com/help/how-webhooks-work/): delivery events for SMS, OTP, WhatsApp and RCS with full payload samples

## DLT compliance (India SMS regulation)

- [DLT SMS explained in plain English](https://www.
…

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