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Reference edition 2026.46

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ZelNum vs KeyAPI

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

ZelNum compared with KeyAPI
DetailZelNum logo ZelNumKeyAPI logo KeyAPI
What it doesPhone number, carrier, and messaging app verification platform for contact list cleaning and fraud review One API Key. Unlimited Social Intelligence.
StageNot given Not given
FoundedNot given Not given
Based inEE Not given
Pricing modelPaid Not given
PricingPay-as-you-go prepaid credits. WhatsApp: $0.5 per 10,000 lookups (bulk) or $0.008 per lookup (realtime). Telegram: $1.5 per 10,000 lookups (bulk) or $0.012 per lookup (realtime). HLR Lookup: $4 per 10,000 lookups. Carrier Lookup: $4 per 10,000 lookups. No subscription, minimum order 500–2,000 depend Free plan with 50 credits (expires in 3 days). Basic: $59/month for 10,000 credits. Pro: $189/month for 50,000 credits. Ultra: $439/month for 180,000 credits. Enterprise: Custom pricing available.
Key features
  • Bulk CSV/TXT file upload and processing
  • VoIP and disposable number detection
  • Real-time single lookups and batch API jobs
  • Access to 20+ social platforms including TikTok, Instagram, YouTube, LinkedIn, and more
  • Native support for CLI, Agent Skills, and MCP for AI agents
  • Real-time and historical data access up to 1,000 days
  • 99.9% uptime SLA and average latency under 500ms
  • Single API key for all platforms without multiple authentication systems
  • REST API, CLI, Agent Skills, and MCP integration methods
What makes it different
  • 45 verification tools in one workflow covering phone, carrier, messaging apps, and social platforms
  • Global coverage across international phone datasets and carrier networks
  • Pay-as-you-go credits with no subscription, minimum commitment, or recurring fees
  • Scalable from free single lookups to bulk API workflows and high-volume batch jobs
  • One API key for 20+ platforms instead of fragmented integrations and multiple authentication systems
  • Historical data archives up to 1,000 days for deeper trend analysis
  • Simple integration requiring only an authorization header without SDKs
Community votes00
DR (Domain Rating by Ahrefs)18 +1 (up) since last check27 +1 (up) since last check
Trust Flow (Majestic)157
Citation Flow (Majestic)2933
Referring domains (Majestic)19208

4 details filled in for both companies.

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