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VirtualSMS.io VS OpenSCAP

Compare VirtualSMS.io VS OpenSCAP and see what are their differences

Status.io
Status.io is a hosted status page platform for incident communication and uptime monitoring. Keep your customers informed with real-time status updates, maintenance alerts, and transparent system notifications. featured
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Contents:
  1. ยป Base Details
  2. ยป Videos
  3. ยป Reviews
  4. ยป Alternatives

VirtualSMS.io logo VirtualSMS.io

Real SIM cards for OTP verification โ€” 145+ countries, 2500+ services (WhatsApp, Telegram, Discord). From $0.05/code. API + MCP server for developers and AI agents.

OpenSCAP logo OpenSCAP

SCAP is a line of standards managed by NIST.
  • VirtualSMS.io Homepage โ€” SMS verification with real SIM cards
    Homepage โ€” SMS verification with real SIM cards //
    2026-05-16
  • VirtualSMS.io Real-SIM SMS verification for AI agents
    Real-SIM SMS verification for AI agents //
    2026-05-16
  • VirtualSMS.io Dashboard โ€” buy a number, receive OTP in seconds
    Dashboard โ€” buy a number, receive OTP in seconds //
    2026-05-16
  • VirtualSMS.io MCP server โ€” for Claude, Cursor, ChatGPT
    MCP server โ€” for Claude, Cursor, ChatGPT //
    2026-05-16
  • VirtualSMS.io Pricing โ€” pay-per-use from $0.05/code
    Pricing โ€” pay-per-use from $0.05/code //
    2026-05-16
  • VirtualSMS.io Developer docs โ€” REST API + quickstart
    Developer docs โ€” REST API + quickstart //
    2026-05-16

VirtualSMS is a developer-first SMS verification API that uses real SIM-backed phone numbers, not VoIP. Receive OTP codes for any service that sends SMS โ€” built for signup testing, account verification, 2FA flows, and autonomous AI agent workflows.

Why VirtualSMS

  • Real SIM numbers work where VoIP fails. Most providers (5SIM, SMS-Activate, SMSPVA, Veritel, SMSPool) lean heavily on VoIP. Our numbers don't get rejected by WhatsApp Business, Telegram bot at scale, banking apps, or dating platforms.
  • Built-in MCP server for AI agents. Claude, Cursor, ChatGPT, and any Model Context Protocol-compatible AI agent can handle phone verification autonomously. We're the only SMS verification API that ships with an MCP server out of the box.
  • x402 stablecoin payments. Auto-topup from any crypto wallet โ€” Base, Polygon, Arbitrum, Optimism. No KYC friction for international developers.
  • Free public price endpoint. Query pricing for any service/country combo without an API key โ€” verify the API works before signing up.

Core capabilities

  • 145+ countries and 2,500+ services (WhatsApp, Telegram, Discord, Gmail, Snapchat, Tinder, banking apps, e-commerce, gig platforms)
  • REST API with OpenAPI 3.1 spec, webhooks, WebSocket for real-time SMS delivery
  • Drop-in sms-activate-style compatibility at /stubs/handler_api.php โ€” migrate by changing only the base URL
  • Pay-per-use from $0.05/code, no contracts, no minimum deposit, auto-refund on failed delivery
  • CORS enabled for browser-based AI agents and dev playgrounds
  • PHP SDK via composer require virtualsms/sdk; npm via npx -y virtualsms-mcp

Quick links

Free API key, instant, no credit card. Sign up at virtualsms.io.

  • OpenSCAP Landing page
    Landing page //
    2021-09-20

VirtualSMS.io

Website
virtualsms.io
Pricing URL
Official VirtualSMS.io Pricing
$ Details
freemium $0.05 (Per OTP code, pay-per-use, no contracts.)
Platforms
REST API PHP
Release Date
2025 January
Edit details

OpenSCAP

Website
open-scap.org
Pricing URL
-
$ Details
-
Platforms
-
Release Date
-
Edit details

VirtualSMS.io features and specs

  • Countries Supported
    145+
  • Services Supported
    2,500+ (WhatsApp, Telegram, Discord, Gmail, social apps)
  • Number Type
    Real SIM cards (not VoIP)
  • MCP Server
    Yes (Model Context Protocol)
  • x402 Stablecoin Payments
    Yes (Base / Polygon / Arbitrum / Optimism)
  • Webhooks
    Yes (async event notifications)
  • OpenAPI Spec
    Yes (v1.1.0, machine-readable)
  • Auto-Refund
    Yes (on failed delivery)
  • Authentication
    API Key (X-API-Key header)
  • Public Price Endpoint
    Yes (no auth required)
  • CORS Enabled
    Yes (browser + AI agents)
  • Legacy Compatibility
    sms-activate-style at /stubs/handler_api.php
  • Response Format
    JSON

OpenSCAP features and specs

  • Automation of Security Compliance
    OpenSCAP provides tools to automate the evaluation and validation of security policies, making it easier to maintain compliance and reduce manual effort.
  • Supports Multiple Frameworks and Standards
    OpenSCAP supports various compliance frameworks like NIST, CIS, and vendor-specific profiles, providing flexibility and comprehensiveness in regulatory compliance.
  • Open Source and Community Driven
    Being an open-source project, OpenSCAP benefits from community contributions which make it continually updated and improve over time without hefty licensing costs.
  • Integration with Other Tools
    OpenSCAP can be integrated with other security management and auditing tools, helping organizations build a robust security ecosystem.
  • Detailed Reporting
    It offers comprehensive reports that provide insights and documentation necessary for auditing and decision-making.

Possible disadvantages of OpenSCAP

  • Steep Learning Curve
    OpenSCAP can be complex and difficult for new users to understand, requiring time and practice to become proficient.
  • Limited to Supported Systems
    The tool is primarily effective on systems it explicitly supports, which may limit its utility in heterogeneous environments.
  • Resource Intensive
    Running scans and assessments with OpenSCAP can be resource-intensive, potentially impacting system performance, especially on legacy hardware.
  • Complex Setup
    Initial setup and configuration can be cumbersome, sometimes necessitating expert knowledge to effectively implement a security policy.
  • Dependency on Up-to-Date Content
    For optimal security checks, OpenSCAP relies on regularly updated and accurate SCAP content, which needs constant maintenance.

Analysis of VirtualSMS.io

Overall verdict

  • VirtualSMS.io appears to be a functional virtual phone number and SMS verification service that offers a convenient way to receive text messages online, though as with many services in this category, users should verify its current reliability and reputation before committing.

Why this product is good

  • Provides temporary or virtual phone numbers for receiving SMS without using your personal number
  • Useful for protecting privacy when signing up for online services and apps
  • Typically supports one-time password (OTP) and verification code reception
  • Often offers numbers from multiple countries for regional flexibility
  • Can be a cost-effective alternative to buying physical SIM cards for verification

Recommended for

  • Users who want to protect their personal phone number when registering for online accounts
  • Businesses needing bulk SMS verification for testing or account creation
  • Developers testing SMS-based features and integrations
  • People who need a temporary number for one-time verifications
  • Privacy-conscious individuals avoiding spam on their primary number

VirtualSMS.io videos

No VirtualSMS.io videos yet. You could help us improve this page by suggesting one.

Add video

OpenSCAP videos

+ Add

End-to-end OpenSCAP for automated compliance

More videos:

  • Review - Security Compliance by OpenSCAP - Integration with Satellite

Category Popularity

0-100% (relative to VirtualSMS.io and OpenSCAP)

VirtualSMS.io

OpenSCAP

Phone Number Verification
100 100%
Phone Number Verification
0% 0
Monitoring Tools
0 0%
Monitoring Tools
100% 100
Temporary Phone Numbers
100 100%
Temporary Phone Numbers
0% 0
Security
0 0%
Security
100% 100

Questions & Answers

As answered by people managing VirtualSMS.io and OpenSCAP.

What makes your product unique?

VirtualSMS.io's answer

VirtualSMS uses real SIM-backed phone numbers, not VoIP โ€” so it works with services that reject VoIP (WhatsApp Business, Telegram bot at scale, banking apps, dating platforms). It's also the only SMS verification API that ships with an MCP server for AI agents and x402 stablecoin payment support โ€” making it the first SMS API designed for both developers and autonomous AI agents.

Why should a person choose your product over its competitors?

VirtualSMS.io's answer

Three reasons:

  1. Real SIM numbers work where VoIP fails. Most competitors (5SIM, SMS-Activate, SMSPVA) lean heavily on VoIP. That gets blocked by services that matter โ€” WhatsApp Business, banking apps, dating platforms. Our numbers don't.

  2. Built-in MCP server for AI agents. Claude, Cursor, ChatGPT, and any MCP-compatible AI agent can handle phone verification autonomously through our MCP server. No other SMS API in this category ships with this.

  3. Pay-per-use, no contracts, no minimum deposit. From $0.05/code. Free API key. Public price endpoint lets you check pricing before signing up. Auto-refund on failed deliveries. x402 stablecoin payments for international developers who want to skip KYC.

How would you describe the primary audience of your product?

VirtualSMS.io's answer

Developers building OTP-dependent workflows: signup testing, QA automation, account verification at scale, and onboarding flows.

Growing segment: AI agent builders using MCP-compatible tools (Claude Code, Cursor, ChatGPT) that need autonomous phone verification capability.

Also: teams migrating from legacy SMS verification providers that no longer meet their needs โ€” either because their suppliers shut down or because their numbers are now blocked as VoIP.

What's the story behind your product?

VirtualSMS.io's answer

VirtualSMS launched because every SMS verification API on the market was either VoIP-only โ€” rejected by WhatsApp, banking apps, and most major services โ€” or built around legacy plain-text protocols that modern AI agents couldn't use natively.

We started with a modern REST API and real-SIM-backed numbers. We added an MCP server from day one, making us the first SMS verification service designed for both developers and autonomous AI agents. x402 stablecoin payment support followed โ€” removing KYC friction for international developers who'd been priced out of legacy providers.

Which are the primary technologies used for building your product?

VirtualSMS.io's answer

REST API over HTTPS with OpenAPI 3.1 specification

TypeScript MCP server (Model Context Protocol)

Mintlify-hosted developer documentation

x402 stablecoin payment protocol on Base / Polygon / Arbitrum / Optimism

WebSocket for real-time SMS delivery notifications

Webhook event notifications for async integration

sms-activate-style legacy compatibility endpoint (/stubs/handler_api.php) for drop-in migration

Who are some of the biggest customers of your product?

VirtualSMS.io's answer

-AI agent platforms integrating our MCP server for autonomous phone verification

-E-commerce QA automation teams testing signup and checkout flows

-Crypto-native developer projects using x402 stablecoin payments

-Developers migrating from sms-activate-style legacy providers

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare VirtualSMS.io and OpenSCAP

VirtualSMS.io Reviews

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OpenSCAP Reviews

10 Best Tenable Nessus Alternatives For 2021 [Updated List]
Verdict: If you seek a tool that can crawl through your entire system infrastructure and perform continuous, automated security assessments, then OpenSCAP is the tool for you. It classifies threats according to their threats and generates certified reports that explain the vulnerabilityโ€™s nature. OpenSCAPโ€™s prompt ability to fix vulnerabilities is what makes it one of the...
Source: www.softwaretestinghelp.com

What are some alternatives?

When comparing VirtualSMS.io and OpenSCAP, you can also consider the following products

SMSCode.gg - Buy virtual numbers to receive SMS online for OTP verification. Temporary phone numbers with real SIM, fast activation, 100+ countries. A reliable sms-activate alternative.

Nessus - Nessus Professional is a security platform designed for businesses who want to protect the security of themselves, their clients, and their customers.

Grizzly SMS - Grizzly SMS offers to get temporary phone numbers for OTP from any popular service. Here you can get a virtual mobile number for SMS verification of any country in the world. โœ… Legal service. โœ… Best price

OpenVAS - The Open Vulnerability Assessment System (OpenVAS) is a framework of several services and tools...

SMS-Activate.guru - SMS-Activate is a service for sale and rent of virtual numbers of more than 180 countries. We provide virtual numbers in most countries of the world so that you can use them to receive an SMS with a confirmation code online.

Burp Suite - Burp Suite is an integrated platform for performing security testing of web applications.

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