Sms Otp Authentication

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.

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.

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.

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.

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.

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.

Nametag verifies workforce and high‑risk customer identities, blocking deepfake and AI impersonation. It automates onboarding, MFA, password resets, and helpdesk checks in under 30 seconds, integrating with IAM, SIEM, ITSM, and HRIS to lower support tickets and costs.

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.

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

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.

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.

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.

Adcaptcha offers a user-friendly verification solution that protects against bot attacks while enhancing user experience. Its single-swipe challenge and gamification principles ensure security and engagement, allowing brands to maintain safety without sacrificing accessibility.

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.

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.

Sohar automates insurance verification, performing real‑time eligibility checks and cost estimates during patient intake. It integrates with EHR and billing systems, delivering over 90% of verifications within 30 seconds to reduce claim denials, lower costs, and improve patient experience.

ShareID is a modular identity platform enabling eIDAS 2.0 compliant verification with photo, video, NFC, and liveness detection, EUDI Wallet attestations, password‑less MFA, configurable SDKs, fraud analytics, and single‑console management for scalable, compliant identity workflows.

Phishr automates phishing simulations and awareness training for MSPs, identifying high‑risk employees, delivering interactive lessons, and running email and SMS campaigns automatically with directory integration, freeing security teams to focus on broader risks.

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.

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.

TxtCart is an AI-native SMS marketing platform for Shopify that automates conversational campaigns, cart recovery, segmentation, and popups; it generates campaign copy, manages conversational responses, schedules targeted flows, and provides analytics and ecommerce integrations.

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.

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.

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.

ScamAlert detects suspicious activity in real time, instantly alerting individuals and businesses. Its zero‑knowledge design keeps data private, while encrypted messaging and identity verification reduce phishing. A constantly updated threat database lets users block scams and take preventive action

TempMail.ai is a disposable email generator that instantly creates temporary addresses and displays an auto-refreshing inbox for receiving verification codes and messages. It offers customizable local-parts, multi-domain switching, and one-click code copying to keep your primary inbox spam-free.

TempMail.bot is a tool that instantly creates disposable email addresses with a temporary inbox for anonymous sign-ups and one-time message receipt, helping users avoid spam and protect their personal inbox during verification workflows.

chatQR.ai replaces traditional POS hardware with an AI‑driven QR ordering system that handles live orders, payments, and refunds across locations, works as a kiosk or integrates with existing POS/commerce, deployable via a mobile portal.

Sendblue (iMessage for Business) provides an iMessage API and messaging platform for conversational marketing, sales outreach, and customer support, with multimedia support, automatic SMS/RCS fallback, automation tools, CRM integrations, compliance controls, and analytics.