Verifalia

Italian email verification API operating since 2005

Email Verification APIs
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What is Verifalia?

Verifalia is an email verification service from Cobisi Research offering bulk list cleaning, a real-time API, embeddable widgets, and 6,000+ integrations. It is known for quality tiers (Standard, High, Extreme), daily free credits on paid plans, and pay-as-you-go packs that never expire.

Key features

Real-Time Verification

Fresh, uncached SMTP checks directly from target mail exchangers on every request.

Bulk List Import

Supports TXT, TSV, CSV, XLS, and XLSX uploads up to 100MB (~72 million addresses per file).

Quality Levels

Standard (1 credit), High (2 credits), and Extreme (4 credits) validation passes with increasing anti-greylisting time; Ultimate can request custom logic.

Typos & ML Detection

Machine-learning typo suggestions plus disposable, free, and role detection.

Classification Overrides

Wildcard rules to force custom classifications before the default scheme (5–100 rules by plan).

Developer Platform

REST API with open-source SDKs for .NET, Go, Java, JavaScript, PHP, and Ruby plus Google Sheets add-on.

Embeddable Widget

JavaScript widget blocks invalid, disposable, and unreachable addresses on HTML forms.

CAPTCHA / Bot Protection

Optional Turnstile, reCAPTCHA, or hCaptcha gating to prevent credit abuse.

Verifalia pricing

Free plan: 25 credits/day (expire daily at midnight GMT). Pay-as-you-go packs never expire (e.g., $7.90 for 1,000, $49.90 for 10,000, $4,890 for 10M at standard quality). Paid plans add daily free credits before pack usage: Starter ~$9/mo (250/day), Professional ~$49/mo (1,250/day), Enterprise ~$199/mo (6,250/day), Ultimate with 25,000/day—confirm exact USD on verifalia.com/pricing. Unused daily plan credits expire each day; pack credits do not.

PlanPriceWhat's included
Free$025 verification credits per day; standard/high/extreme quality available; best-effort speed
StarterFrom ~$9/month (or ~$108/year)250 daily free credits; 5 classification override rules; faster processing than free
ProfessionalFrom ~$49/month1,250 daily credits; 10 override rules; SLA on higher tiers
Pay-as-you-go 10,000$49.9010,000 standard-quality credits; never expire
Pay-as-you-go 100,000$389100,000 standard-quality credits
Enterprise / UltimateCustom / from ~$199/monthUp to 25,000 daily credits on Ultimate; custom quality logic; premium support

Pros & cons

Pros

  • + Mature API docs and multi-language SDKs
  • + Extreme quality mode for difficult mail servers
  • + Pack credits never expire
  • + Massive integration catalog (6,000+)
  • + Free deduplication and smart duplicate algorithms
  • + Very large published packs up to 10M addresses
  • + Daily free credits useful for steady low-volume API use

Cons

  • − Daily plan credits expire each day if unused
  • − Higher per-email cost at small volumes than budget verifiers
  • − Multi-credit pricing for High/Extreme quality increases cost unpredictably
  • − Paid plan dollar amounts require live pricing page (JS-rendered)
  • − Processing speed tiers favor expensive plans
  • − Steeper learning curve for classification schemes and overrides

Who is Verifalia best for?

  • • Developers integrating email verification into apps with official SDKs
  • • Teams verifying difficult domains needing High or Extreme quality
  • • Enterprises wanting CAPTCHA protection and custom classification
  • • Google Sheets users cleaning lists without code
  • • Very large one-time list cleans buying million-credit packs

Frequently asked questions

Do Verifalia pay-as-you-go credits expire?

No—credits purchased in packs never expire. Daily free credits included with subscription plans expire at the end of each day.

How many credits does High quality use?

High quality uses 2 credits per email; Extreme uses 4 credits at standard billing.

Can I use Verifalia for free?

Yes—the free account includes 25 verifications per day.

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