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VirtualSMS.io VS Deadpendency

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

VirtualSMS.io

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

Rating
0 reviews
Pricing
Freemium $0.05 (Per OTP code, pay-per-use, no contracts.)
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Alternatives Is it good?
Deadpendency

Automated software dependency project health tracking

Rating
0 reviews
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Alternatives Is it good?
Eddyter
Build and integrate a WYSIWYG editor in minutes. Eddyter offers fast setup, developer-friendly APIs, and seamless content editing for modern web apps today. sponsored
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Which is more popular?

Based on our record, Deadpendency seems to be more popular. It has been mentioned 2 times since March 2021.

social mentions
0 vs 2
Virtual Phone Number popularity
100% vs 0%

Base details

Website, pricing, platforms and company facts side by side.

VirtualSMS.io
Deadpendency
Website virtualsms.io deadpendency.com
Pricing
Freemium $0.05 (Per OTP code, pay-per-use, no contracts.) Official pricing
Official pricing
Platforms
REST API PHP
—
Company 10 - 19 employees · 2025 —
Listed in
Temporary Phone Numbers Phone Number Verification SMS Virtual Phone Number +1
Dependency Management Software Development Security

About VirtualSMS.io and Deadpendency

In their own words, as submitted to SaaSHub.

VirtualSMS.io
Deadpendency

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 — built for signup testing, account verification, 2FA flows, and autonomous AI agent workflows. Why VirtualSMS Real SIM numbers work where VoIP...

Read more about VirtualSMS.io

No description of Deadpendency yet.

Features and specs

What each product offers, as listed by its team.

VirtualSMS.io 13 features
Deadpendency 5 features
  • 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
  • Automated Dependency Monitoring
    Deadpendency automatically checks your project's dependencies for signs of being dead, unmaintained, or deprecated, saving developers from manually tracking the health of each dependency.
  • GitHub Integration
    Deadpendency integrates directly with GitHub as a GitHub App, making it easy to set up and run as part of your existing pull request and CI workflow without requiring additional infrastructure.
  • Early Warning System
    By catching dead or unmaintained dependencies early, Deadpendency helps teams avoid security risks and technical debt that come from relying on abandoned libraries.
  • Multi-Language Support
    Deadpendency supports a wide range of programming languages and package ecosystems, making it useful for polyglot projects and diverse development teams.
  • Low Configuration Overhead
    The tool is designed to work out of the box with minimal configuration, allowing teams to get value quickly without spending significant time on setup and customization.

Possible disadvantages

  • Limited to GitHub
    Deadpendency is primarily a GitHub App, which means teams using other platforms like GitLab or Bitbucket cannot easily use the service without switching or mirroring their repositories.
  • Potential False Positives
    The tool may flag dependencies as dead or unmaintained based on activity metrics, even when a library is stable and simply mature, leading to unnecessary concern or migration efforts.
  • Niche Use Case
    Dependency health checking is a relatively narrow function. Teams may prefer more comprehensive dependency management tools that also handle vulnerability scanning, license compliance, and version updates in one solution.
  • Reliance on External Signals
    Deadpendency relies on external signals like repository activity and release frequency to determine dependency health, which may not always accurately reflect the true maintenance status of a project.
  • Limited Community and Ecosystem
    As a relatively niche tool, Deadpendency has a smaller user community compared to alternatives like Dependabot or Renovate, which can mean fewer resources, community support, and third-party integrations.

Analysis

An editorial look at what each product does well and who it suits.

VirtualSMS.io
Deadpendency

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

Overall verdict

  • Deadpendency is a solid choice for teams needing automated dependency health monitoring, particularly for tracking deprecated, unmaintained, or archived packages that traditional vulnerability scanners often miss, integrating cleanly into CI workflows via GitHub Actions.

Why this product is good

  • Focuses specifically on dependency 'deadness' (deprecated, archived, unmaintained packages) rather than just security vulnerabilities, filling a gap left by tools like Dependabot
  • Simple integration as a GitHub Action, making it easy to add to existing CI/CD pipelines without heavy configuration
  • Provides clear, actionable reports that help developers proactively address technical debt before it becomes a security or maintenance liability
  • Supports multiple language ecosystems, offering broad applicability across different tech stacks
  • Lightweight and automated approach reduces manual auditing effort for dependency health

Recommended for

  • Development teams wanting to proactively manage technical debt in their dependency trees
  • Open source maintainers looking to keep their projects' dependencies healthy and current
  • Organizations using GitHub Actions for CI/CD who want an easy-to-integrate dependency health check
  • Security-conscious teams who want visibility into unmaintained packages that could pose future risks
  • Projects with many dependencies where manual tracking of deprecation status is impractical

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
VirtualSMS.io
Deadpendency
100% 100%
Virtual Phone Number
0% 0%
0% 0%
Security
100% 100%
100% 100%
Phone Number Verification
0% 0%
0% 0%
Dependency Management
100% 100%

Questions & Answers

As answered by people managing VirtualSMS.io and Deadpendency.

What makes your product unique?

VirtualSMS.io's answer

VirtualSMS uses real SIM-backed phone numbers, not VoIP — 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 — 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 — 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 — 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 — rejected by WhatsApp, banking apps, and most major services — 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 — 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

Share your experience with using VirtualSMS.io and Deadpendency. For example, how are they different and which one is better?

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Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

VirtualSMS.io 0 mentions
Deadpendency 2 mentions

Tracking VirtualSMS.io since May 2026.

  • Deadpendency Open Sourced
    I created a tiny startup in Haskell which failed RIP. I decided to open source the code though. Source: over 3 years ago
  • Twitch Streamers?
    I sometimes stream my Haskell work on deadpendency - https://www.twitch.tv/alistairbuzz. Source: over 5 years ago

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