ZelNum vs JobPostings API

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 JobPostings API
Detail	ZelNum	JobPostings API
What it does	Phone number, carrier, and messaging app verification platform for contact list cleaning and fraud review	Unified job postings API for every ATS and corporate career site
Stage	Not given	Not given
Founded	Not given	Not given
Based in	EE	US
Pricing model	Paid	Freemium
Pricing	Pay-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 trial: 500 credits (no card required). Starter: $19/month (25,000 credits, $0.76 per 1,000 jobs). Growth: $49/month (100,000 credits, $0.49 per 1,000 jobs). Pro: $99/month (300,000 credits, $0.33 per 1,000 jobs). Scale: $199/month (1,000,000 credits, $0.199 per 1,000 jobs). Pay-as-you-go packs:
Key features	Bulk CSV/TXT file upload and processing VoIP and disposable number detection Real-time single lookups and batch API jobs	19.8M active job postings across 434 ATS platforms 26-field canonical JSON schema Multi-ATS boolean and salary search Real-time job lifecycle feeds Live ETag polling for company boards REST API, delta streams, and MCP server Webhook support for job events Sub-50ms latency queries
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	434 unified ATS connectors vs. maintaining separate integrations for Greenhouse, Lever, Ashby, Workday, and others Pay only for returned records; no charge for empty searches 9.9M redistributable jobs safe for public job boards and commercial use Real-time closed job detection to prevent dead links
Community votes	0	0
DR (Domain Rating by Ahrefs)	18 +1 (up) since last check	Not checked yet no change since last check
Trust Flow (Majestic)	15	0
Citation Flow (Majestic)	29	0
Referring domains (Majestic)	19	0

6 details filled in for both companies.

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