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UserAlertX vs AI2Web

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

UserAlertX compared with AI2Web
Detail UserAlertXAI2Web logo AI2Web
What it doesSMS and email alerts from AI agents, bots and scripts to your own verified phone or email The interoperability layer for AI-enabled websites
StageStartup Not given
Founded2026 Not given
Based inUS Not given
Pricing modelFreemium Open source
PricingFree trial: 50 alerts or 30 days, whichever comes first, no card required. Monthly plan: $5/month for 50 tokens per month (text = 1 token, email = 0.1 token). Annual plan: $60 for 13 months (one month free), includes 50 tokens per month. Extra tokens: $5 for 150 tokens, $10 for 300, $25 for 850, $50 Free and open source
Key features
  • HTTP POST API for sending alerts
  • Email and SMS dual opt-in verification
  • Reply keywords for opt-in/opt-out control
  • Delivery status tracking
  • Carrier-restricted content auto-routing to email
  • 10DLC registration and carrier compliance
  • One verified phone number per account
  • Held-message queue with auto-release after opt-in
  • Token-based billing system
  • Multi-protocol support - projects to MCP, ACP, AP2, NLWeb, REST, GraphQL, OpenAPI and feeds
  • AI Readiness Validator - scores site readiness from 0 to 100 with per-capability checks
  • Discovery network - agents can discover AI-ready sites by capability or type
  • OAuth2 with PKCE support for secure authentication
  • SDKs in 8 languages - TypeScript, JavaScript, React, Python, PHP, Go, .NET and Ruby
  • WordPress plugin for auto-generating AI2Web manifests
  • Chrome extension for checking any site's AI readiness instantly
  • SSRF protection for all outbound requests
  • Supports llms.txt and agent.json formats for backwards compatibility
What makes it different
  • Only texts the verified account owner—no way to message anyone else
  • 10DLC registered with full carrier compliance from day one
  • Automatic routing of restricted topics to email instead of SMS
  • Free tier included with no card required upfront
  • Describe your website once in a single manifest, projects automatically to all major AI protocols
  • No vendor lock-in and no per-vendor rebuilds required
  • Built-in safety by construction - high-risk actions always preview before running
  • Free and open source with CC-BY 4.0 spec and MIT licensed SDKs
  • Works across Claude, ChatGPT and any MCP client without per-vendor work
Community votes00
DR (Domain Rating by Ahrefs)31 +3 (up) since last check12 +1 (up) since last check
Trust Flow (Majestic)39
Citation Flow (Majestic)2419
Referring domains (Majestic)2961

5 details filled in for both companies.

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