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Abstract API vs. Starnus

Built from each tool’s researched, reviewed record. Figures are checked against public pricing pages at research time — always confirm current pricing with the vendor before buying.

The short version

Abstract API starts at Free per seat, versus Starnus at $50.

Full comparison

Abstract APIfrom Free
Starnusfrom $50 EUR per month (Pro)
Audyense Score38AS*Low44AS*Low
PositioningAbstract API AbstractAPI is a developer API platform for B2B teams and software builders needing data validation and automation.AI SDR platform that runs outbound prospecting, enrichment, outreach, and follow-ups on autopilot.
Free tierYesNo
DeploymentCloud / SaaSCloud / SaaS
Best fitStartup, SMB, Mid-market, EnterpriseStartup, SMB, Mid-market
Pricing plans
  • FreeFree
  • BusinessCustom pricing
  • EnterpriseCustom pricing
  • ScaleCustom pricing
  • Pro$50
  • Pro+$125
  • Ultra$250
  • Managed Service$900
Email validation with deliverability and disposable address checksYesDocumented in the sourced profile.—
Phone number validation with carrier and format lookupYesDocumented in the sourced profile.—
IP geolocation API with city region latitude dataYesDocumented in the sourced profile.—
IP intelligence for proxy VPN and risk detectionYesDocumented in the sourced profile.—
Company enrichment from domain or email inputsYesDocumented in the sourced profile.—
Exchange rates currencies and timezone data APIsYesDocumented in the sourced profile.—
Web scraping screenshots image processing and avatar APIsYesDocumented in the sourced profile.—
CRM warehouse and automation integrations with SDKs Abstract APIYesDocumented in the sourced profile.—
Data enrichmentYesDocumented in the sourced profile.—
Lead generationYesDocumented in the sourced profile.—
Integrations verified6+—
Aggregate rating— · No reviews yet5.0 · 2 reviews
Integrations
SalesforceHubSpotZapierMakeLinkedInAPI
SmartleadUnipileHubSpotPerplexity
Security & compliance
SOC 2GDPR
—
Pros
  • Documented capability: Email validation with deliverability and disposable address checks
  • Documented capability: Phone number validation with carrier and format lookup
  • Explicit audience guidance: AbstractAPI fits developers, product teams, and RevOps operators at B2B SaaS startups, mid-market software firms, and enterprises. It serves teams val
  • Names workflow connections including Salesforce, HubSpot, Zapier
  • Fast automated ICP and prospect-list generation
  • Combines email and LinkedIn outreach in one flow
  • Cheaper than enterprise AI-SDR alternatives
Cons
  • Some pricing or higher-tier terms are not publicly itemized
  • Fit is strongest for the stated Startups, SMBs, Mid-market, Enterprise audience
  • Named integrations should be checked against the exact plan
  • Reported outcomes and vendor claims should be validated with the buyer's own data
  • No independent review-platform rating found to verify real-world satisfaction
  • Credit-based limits on leads/messages per tier
Visit Abstract API ↗Visit Starnus ↗