Sms Otp

Prelude is an SMS and OTP verification API enabling global phone verification across 230 countries. It offers advanced routing, AI-driven fraud protection, easy integration, and real-time analytics to enhance user authentication for developers.

hCaptcha is a bot detection and abuse prevention platform that offers risk scoring and challenge controls for web, mobile, and server‑side. It protects accounts from takeover, credential stuffing, and multi‑account abuse while preserving privacy with zero PII sharing.

Mtalkz is a cloud communication platform offering bulk SMS, RCS, WhatsApp API, OTP, IVR, email, and chatbot services. It supplies APIs, real‑time analytics, regulatory compliance support, and scalable messaging for businesses of all sizes.

hCaptcha Enterprise provides enterprise bot mitigation and fraud prevention with integrated MFA (SMS OTP), CAPTCHA-based detection, and orchestration to block account takeover, credential stuffing and LLM-driven agentic abuse, with privacy-focused data handling and centralized analytics.

Spokk logs customer visits, sends timed feedback requests, auto‑creates compliant review drafts, manages loyalty points, and distributes referral links—all via SMS, QR, API, or HubSpot, streamlining engagement for service‑based businesses.

GPT SMS is an innovative AI tool that allows users to interact with an AI assistant through text messaging. This tool leverages the capabilities of OpenAI's ChatGPT, making it accessible to a wider audience regardless of their device or internet access.

Recart offers Shopify merchants SMS marketing and lightweight opt-in popups with A/B testing, automated flows for welcome, abandonment, fulfillment and replenishment, segmentation and integrations, plus analytics and migration support to grow subscriber lists and recover revenue.

SensiBot is an AI‑powered WhatsApp chatbot that connects via QR code, delivering instant, context‑aware responses. It automates customer support, lead generation, and basic CRM tasks, offering a no‑code setup and real‑time analytics.

VoiceGPT lets Android users chat with ChatGPT via voice, offering hotword activation, multilingual input/output, and unlimited free messaging. It supports OCR for image text extraction, code execution in 70+ languages, and DALL‑E 2 image creation, all within a dark/light theme.

SMSGenius is an SMS marketing platform that tracks clicks, conversions, and micro‑conversions in real time, offers dynamic personalization and A/B testing, real‑time segmentation, batch delivery with live performance data, autopilot threshold controls, and built‑in URL shortening for deliverability.

Zixflow consolidates SMS, WhatsApp, Email, and RCS messaging through a single API, offering automated workflows via visual builder or code, real‑time analytics, AI segmentation, and CRM integrations to deliver reliable, scalable transactional and marketing communications.

SpeechGen.io converts up to 2 million characters into high‑quality neural‑voice audio across 150 languages with 5,000 models. It allows voice, speed, pitch, volume control, SSML tags, background music, multi‑speaker tagging, downloadable formats, and a REST API.

SMS City is an interactive platform that tracks urban development projects, offering real-time updates, project notifications, and an organized view of initiatives. It fosters communication and transparency between city officials and residents for informed participation in local governance.

MobileGPT is an AI tool that provides document services through WhatsApp with advanced AI capabilities.

Snap2Pass automatically generates passport and visa photos from smartphone images, ensuring compliance with ICAO, ISO/IEC 19794‑5 and country‑specific standards. It checks lighting, background, facial alignment, and provides instant preview and download.

ChatGPT is a WhatsApp-integrated chatbot with over 2,000 users and 10,000 messages processed. A paid subscription is being explored for unlimited messaging and context recognition. Interested users can sign up for updates on the tool's website.

Smartlead is an AI‑driven cold‑outreach platform that unifies email, call, and SMS campaigns into one inbox. It automates warm‑ups, IP rotation, lead research, personalized messaging, CRM updates, and deliverability analytics to keep messages in primary inboxes.

PetsApp equips veterinary teams with integrated communication, practice management, and CRM tools—text, SMS, WhatsApp, video calls, booking, reminders, payments, scribe, and wellness plans—enhancing client interaction, appointment bookings, and on‑site care coordination.

ttsMP3.com converts text to spoken audio in over 28 languages with natural voices. Supports multiple speakers, SSML tags, and instant MP3 downloads. Ideal for e‑learning, slide decks, videos, and enhancing website accessibility.

Online TTS platform converts text into audio in 100+ languages with 148+ AI voices. Users can tweak speed, pitch, pause, add background music, and download MP3, OGG, AAC, OPUS, or WAV for dubbing, audiobooks, and language learning.

Flowtext.io automatically extracts two‑factor authentication codes from iMessage SMS on macOS, copies them to the clipboard, and notifies the user. It supports many 2FA services, keeps data local, and eliminates manual copy‑paste during logins.

Speakspots is an AI‑powered WhatsApp platform for hotel chains that interprets guest intent and context to deliver real‑time, personalized, multilingual responses. It automates housekeeping, maintenance, F&B, and spa requests, integrates with PMS, keeps content updated, and is GDPR‑compliant.

Sendwo is a free WhatsApp marketing software for bulk messaging and automation, enabling users to create message templates, integrate with e-commerce platforms, and utilize AI chatbots for customer support while managing leads and workflows efficiently.

SpeakPal AI offers real‑time conversation practice in 30+ languages with adaptive tutoring, instant grammar correction, and pronunciation coaching. Users can download lessons, earn QR‑coded certificates, and educators access teen‑safety mode, all syncing across web, iOS, and Android.

GPT‑trainer creates voice and text AI agents for phone, email, SMS, web chat, and social media. No‑code builder, optional API, multi‑LLM support, document training, automated workflows, real‑time escalation, CRM sync, unified inbox, EU‑hosted, SOC II/ISO 27001/GDPR compliant.

Sweepr unifies app, web, chat, and IVR into a single interface for telecom and ISP operators. It blends large‑language‑model flexibility with telco heuristics for real‑time support, compliance, and efficient human‑in‑the‑loop escalation.

Teloz consolidates calls, chat, video, and fax into an omnichannel interface, automating routing with an ACD engine and tools like sentiment analysis. It integrates with CRM, offers real‑time analytics, and supports multi‑device sync for efficient customer service.

Online voice‑synthesis tool that converts text into spoken audio in multiple languages. It offers standard, Gen2, prompted, and voice‑cloned voices with emotional tones, adjustable gender, accent, speed, background levels, and MP3 export for creators and educators.

Viqal automates guest messaging across WhatsApp, Messenger, and web widgets, linking to a PMS for real‑time, personalized responses. It handles routine inquiries, upsells, digital keys, and post‑stay reviews, freeing staff for complex tasks.

TapTalk unifies WhatsApp, Instagram, Facebook Messenger, Twitter DM, LINE, Telegram, and email into a single dashboard for sales, marketing, and support. It offers an in‑app chat SDK, automated OTP/notifications, GenAI chatbots, broadcast messaging, and detailed performance analytics.

ChatShitGPT is a GPT‑based chatbot offering interchangeable personalities—from sarcastic pirate to motivational coach—allowing users to switch tones for casual entertainment or quick encouragement. It delivers instant, varied responses tailored to mood or task.

Botsplash is an AI engagement platform that automates chat, voice and text across web, SMS and RCS, centralizes omnichannel conversations, qualifies leads, schedules appointments and integrates with Salesforce/CRM to improve response times, follow-ups and retention.

Zipchat AI automates pre‑ and post‑sales chat for eCommerce, recommending products, generating discount codes, recovering abandoned carts, and providing instant order status from Shopify, WooCommerce, Magento, and other platforms. Multilingual, plug‑and‑play integration, no coding required.

CartBoss automates abandoned‑cart recovery for Shopify stores by sending targeted SMS and other notifications. It tracks delivery, opens, clicks, and delivers real‑time analytics, freeing marketers and ensuring recovered orders process instantly.

Quo is a business phone system that centralizes calls, SMS, voicemails, recordings, and contact history into shared inboxes. Sona AI handles 24/7 call answering, qualification and routing, with automated tagging, summaries, CRM integrations and analytics.

Enso Connect centralizes guest communication across email, SMS, WhatsApp, and OTA channels, automating check‑in/out messages, guidebooks, smart‑lock access, and identity verification. It inserts upsell offers, tracks tasks with a CRM, and delivers real‑time analytics across 30+ integrations.

ChatGPT for WhatsApp brings GPT‑4 chat into the messaging app, enabling quick document drafting, legal research, proofreading, image generation, quizzes, translation, and document summarization via prompts and shortcut commands for writers.

SMS Assist is a new feature within the Klaviyo platform that generates compliant SMS copy using AI and provides three message options to pre-established target audiences.

PrankGPT lets users generate voice‑based prank calls by entering a phone number, selecting a voice (Marv, Zephyr, or Google Cloud), and providing a prompt. The client‑side app uses Vocode and produces high‑quality audio for hobbyists and developers.

Speechelo is an AI-powered text-to-speech tool with 30+ male and female voices, inflection in 3 tones, and supports English and 23 other languages, designed for video creation software to generate voiceovers without professional artists.

TextGPT is an AI-powered question and answer app that can generate realistic images from simple text inputs, and provides quick and accurate responses to various queries on a wide range of topics.

Texts AI Tool unifies messaging across platforms, prioritizing privacy. Features include AI-driven chat summaries, message translation, stealth mode, scheduling, and customizable UI for optimized and personalized communication. (tool_description from startwithtexts.com)

Evant automates event RSVPs, check‑ins, and fundraising via SMS and online links, with keyword‑triggered replies and scheduled messaging. It integrates with CRMs and payment processors, providing real‑time attendance analytics and streamlined donor outreach.

SecureGPT is a free platform for security testing OpenAI ChatGPT plugins.

Tictuk unifies restaurant and retail ordering across WhatsApp, Messenger, QR kiosks, apps, and web, centralizing orders, coupons, loyalty, and checkout in one dashboard. Its loyalty engine gathers data, automates upsells, and integrates POS for seamless operations.

Markopolo tracks anonymous visitors, analyzes 384 signals, and predicts purchase intent. It delivers real‑time 1:1 outreach via email, SMS, WhatsApp, voice, and push, plus instant cart recovery. Supports 50+ languages, cultural intelligence, and integrates with existing systems for unified journeys.

Omnichannel AI agents trained on FAQs, transcripts, CRM notes and SOPs automate voice, email, chat and SMS support, sales and scheduling for SMBs, preserving brand tone, integrating with CRM/websites and improving response times and lead capture.

Dewey is an AI accountability assistant that manages to‑do lists and habits via SMS reminders and conversational prompts. Users schedule custom nudges, track tasks by text, and get quick info, recipes, and facts, all without a separate app.

Kodie adds a secure widget to merchants’ order confirmations, letting customers send text, photo or video messages that are delivered after shipment to a brand page with product carousels and analytics, reducing paper waste and saving time.

ai2006 is an SMS‑only AI assistant powered by GPT‑3.5 that delivers instant, personalized answers and reminders worldwide. It works on basic phones without internet, making it accessible for elderly users and those without smartphones.