Abstract API vs ZeroBounce

Detailed comparison across 10 dimensions

Winner: Abstract API

Abstract API clearly comes out ahead of ZeroBounce on Staquest's weighted six-dimension score. Both offer a free tier. ZeroBounce's paid plans start at $99/mo.

Quick Overview

Overview	Abstract APIDeveloper-focused email verification API for real-time validation.	ZeroBounceEmail validation and deliverability testing service.
Type	saas tool	saas tool
Company	Abstract API	ZeroBounce
Free Tier
Has API
Open Source
Trending	Stable	Stable
Industries	Marketing	Marketing
Categories	email-marketing	email-marketing
Website	Visit	Visit

Dimension Scores

Winners by Dimension

Overall Winner

Abstract API

Abstract API: 7.3ZeroBounce: 5.5(+1.7 pts)

Pricing Value

Abstract API15% weight

Abstract API

8.0

ZeroBounce

1.0

Free Tier

ZeroBounce10% weight

Abstract API

7.5

ZeroBounce

8.5

Scalability

Tie10% weight

Abstract API

10.0

ZeroBounce

10.0

Integrations

Tie10% weight

Abstract API

8.0

ZeroBounce

8.0

Community

Tie5% weight

Abstract API

3.1

ZeroBounce

3.0

Open Source

Tie5% weight

Abstract API

2.0

ZeroBounce

2.0

Pricing Comparison

Abstract API

Starter–

freemium

Increased request limits
Higher rate limits
Standard email support

Standard–

freemium

Higher usage tiers
Increased rate limits
Domain whitelisting

Professional–

freemium

Higher usage volume
Multiple API keys
Priority support

Enterprise

Contact sales

custom

Flexible request limits
Dedicated account manager
Enhanced SLA
Commercial licensing
Advanced security/compliance features (SOC 2, GDPR)

Free

freemium

Limited number of requests (1,000 to 5,000)
Limited requests per second
Core data features

ZeroBounce

Free

View pricing

freemium

100 free monthly email validations
Email validation
Email scoring
Blacklist monitoring
API access

Pay-As-You-Go

View pricing

usage based

No subscription commitment
Credits never expire
Bulk validation
Real-time API

ZeroBounce ONE

~$99/mo

View pricing

flat

25,000 validation credits monthly
Credits rollover
Email Finder
Inbox placement tests
Email server tests
Blacklist monitoring
+2 more

Enterprise

Contact sales

View pricing

custom

1,000,000+ validation credits
Personalized onboarding
Email verification training
24/7 dedicated support

Feature Comparison

Feature	abstract-api	zerobounce
Advanced Security/Compliance Features (Soc 2, Gdpr)
1,000,000+ Validation Credits
Commercial Licensing
100 Free Monthly Email Validations
Core Data Features
15% Discount On Additional Credits
Dedicated Account Manager
24/7 Dedicated Support
Domain Whitelisting
25,000 Validation Credits Monthly
Enhanced Sla
Api Access
Flexible Request Limits
Blacklist Monitoring
Higher Rate Limits
Bulk Validation
Higher Usage Tiers
Credits Never Expire
Higher Usage Volume
Credits Rollover
Increased Rate Limits
Dmarc Monitoring
Increased Request Limits
Email Finder
Limited Number Of Requests (1,000 To 5,000)
Email Scoring
Limited Requests Per Second
Email Server Tests
Multiple Api Keys
Email Validation

Showing 30 of 30 features

Dashes mean the feature isn't listed in our data. The tool may still support it.

Frequently asked questions

Is Abstract API or ZeroBounce better?

On Staquest's weighted six-dimension scoring, Abstract API comes out ahead overall, though ZeroBounce can be the better fit depending on your priorities — see the dimension-by-dimension breakdown above.

Does Abstract API or ZeroBounce have a free tier?

Both Abstract API and ZeroBounce offer a free tier.

Which is better for pricing value, Abstract API or ZeroBounce?

Abstract API scores higher on pricing value in Staquest's analysis. It is the highest-weighted dimension in this comparison.

View Abstract API View ZeroBounce