Tomba pricing vs Abstract: under half the cost per verification

Deliverability, SMTP and MX checks, disposable detection and a quality score in one response. 100 free requests a month, no card. Here is how Abstract lines up against Tomba.
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Abstract vs Tomba, side by side

Every check in one response, at a third of a cent per verification, with 100 free requests every month.

Abstract
Tomba
Entry paid plan
$17 / month
$89 / month
Cost per verification
$0.0034
$0.0089
Free plan
100 requests / month, renews monthly
25 searches / month
Verification response
Deliverability, SMTP, MX, disposable, format and quality score
Not detailed on the pricing page
Other APIs on the same key
14, including phone, IP and company data
Email and company enrichment
SOC 2 Type II
Yes
Not published

Tomba figures read from tomba.io/pricing on September 4, 2026. Abstract cost per verification is $17 a month billed annually for 60,000 requests a year.

The world’s best engineering teams run on Abstract
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4.8 from 1,863 votes
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Quick start — first validation in 2 minutes

Real-time email validation worldwide
Validate email addresses globally using a single REST API. Checks syntax, MX records, SMTP deliverability, disposable domains, and catch-all emails in one request.
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Built for high-volume email validation
Validate thousands of emails via API with no infrastructure setup. No email service provider required, fully standalone and scalable.
graph
Ready for real-time signup flows
Get a full validation response, including SMTP verification and quality score, in under 300ms. Built for real-time form validation and user signup flows.
Api (1).avif
Built for reliable uptime
Production-ready API with consistent uptime and accurate deliverability checks. Used to reduce bounce rates and improve email data quality.
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Start validating emails in minutes production-ready API

Questions answered by a real person
Questions answered by a real person, usually within a few hours. Reply to any email or reach us at team@abstractapi.com.
Integrate with your stack
Abstract integrates with the tools you already use, from cloud and analytics platforms to low code tools to ERPs, CRMs, and more.
Zapier
Zapier
Splunk
Splunk
Snowflake
Snowflake
Shopify
Shopify
Salesforce
Salesforce
Pipedream
Pipedream
Pardot
Pardot
Openprice
Openprice
NetSuite
NetSuite
Marketo
Marketo
Make
Make
Mailchimp
Mailchimp
Magento
Magento
Hubspot
Hubspot
GCP
GCP
Databricks
Databricks
Azure
Azure
AWS
AWS
REST API with JSON response
Validate any email address via a simple HTTP request. Get structured JSON including deliverability, quality score, SMTP check, and MX validation.
World
Ready for the enterprise
Compliance is at our core. We’re committed to industry-standard security and privacy frameworks, like SOC 2 and GDPR.
SOC 2
Type II
AICPA SOC
GPDR
Ready
Gpdr
99.99%
uptime SLA
Sla
For more information check our

Stop paying to send emails that bounce. Keep your list clean with validations that run in real time.

Weekly updates
Disposable email detection
Daily updates
High risk, low reputation domain alerts
Extensive domain monitoring and analysis.
Daily updates
Industry-leading accuracy
Easily decision each email with a trusted quality score.
Smart learning at scale
3B+ validations processed. Proprietary ML models trained on that data — our accuracy benchmarks are available on request.
Real-time SMTP verification
The gold-standard in deliverability, returned in <50 milliseconds.
Daily updates
Real-time MX checks
Speedy verification of MX records ensures deliverability.
Daily updates
Toxic domain detection
Avoid domains with spam and abuse that hurt deliverability.
Typo detection & smart suggestions
Catch common typos and suggest changes to improve conversion.
Domain age
Understand the age of any domain from an email address with our free domain age checker tool.
Monthly updates
Free email detection
Screen users from an extensive list of free email providers.
Catch-all email detection
Know where your emails are going with catch-all detection.
DMARC record checker
Weekly updates
Spam trap filters
Protect your domain’s reputation by identifying spam traps.
Role detection
Flag role emails (sales@, info@) to identify email quality.
Weekly updates
Greylist monitoring
Minimize unknowns and maximize deliverability with proprietary anti-greylist tech.
Monthly updates
Syntax validation
Syntax validation across thousands of edge cases.
Bulk operations
Save time with powerful bulk validations via API.
Weekly updates
SPF record checker
Multiple API keys & test environments
Manage access and usage with multiple API keys.

Simple and transparent pricing

Monthly
Annually (save 10%)

Free

Assess email risk and reputation.
$0
/ month
100 requests
start for free
WHAT'S INCLUDED
  • Email deliverability
  • Email sender
  • Email domain
  • Email quality
  • Email risk
  • Email breaches
  • 100 requests
  • 3 requests / second

Starter

Validate emails & ensure deliverability.
$17
/ month
Paid annually
Choose requests / year:
start for free
WHAT'S INCLUDED
  • Email deliverability
  • 60,000
     requests / year
  • 3
    requests / second
  • Domain whitelisting
  • Bulk CSV upload

Standard

Enrich sender and domain details.
$37
/ month
Paid annually
Choose requests / year:
start for free
WHAT'S INCLUDED
  • Email deliverability
  • Email sender
  • Email domain
  • 60,000
     requests / year
  • 3
    requests / second
  • Domain whitelisting
  • Bulk CSV upload

Enterprise

Customize data for advanced needs.
Custom
Contact
WHAT'S INCLUDED
  • Email deliverability
  • Email sender
  • Email domain
  • Email quality
  • Email risk
  • Email breaches
  • Flexible requests / month
  • Flexible requests / second
  • Domain whitelisting
  • Bulk CSV upload
  • Commercial license
  • SOC 2 & GDPR
  • Enhanced SLA & support
  • Dedicated account manager

Free

Assess email risk and reputation.
$0
/ month
100 requests
start for free
WHAT'S INCLUDED
  • Email deliverability
  • Email sender
  • Email domain
  • Email quality
  • Email risk
  • Email breaches
  • 100 requests
  • 3
    requests / second

Starter

Validate emails & ensure deliverability.
$17
/ month
Choose requests / month:
start for free
WHAT'S INCLUDED
  • Email deliverability
  •  
  •  
  •  
  •  
  •  
  •  
  • 5,000
     requests / month
  • 3
    requests / second
  • Domain whitelisting
  • Bulk CSV upload

Standard

Enrich sender and domain details.
$37
/ month
Choose requests / month:
start for free
WHAT'S INCLUDED
  • Email deliverability
  • Email sender
  • Email domain
  •  
  •  
  •  
  •  
  • 5,000
     requests / month
  • 3
    requests / second
  • Domain whitelisting
  • Bulk CSV upload

Enterprise

Customize data for advanced needs.
Custom
Contact
WHAT'S INCLUDED
  • Email deliverability
  • Email sender
  • Email domain
  • Email quality
  • Email risk
  • Email breaches
  • Flexible requests / month
  • Flexible requests / second
  • Domain whitelisting
  • Bulk CSV upload
  • Commercial license
  • SOC 2 & GDPR
  • Enhanced SLA & support
  • Dedicated account manager

API Response Examples

Abstract Starter

{
  "email_address": "richard.hendricks@abstractapi.com",
  "suggested_correction": null,
  "email_deliverability": {
    "status": "deliverable",
    "status_detail": "valid_email",
    "is_format_valid": true,
    "is_smtp_valid": true,
    "is_mx_valid": true,
    "mx_records": [
      "alt2.aspmx.l.google.com",
      "aspmx.l.google.com",
      "alt3.aspmx.l.google.com",
      "alt4.aspmx.l.google.com",
      "alt1.aspmx.l.google.com"
    ]
  }
}

Abstract Standard

{
  "email_address": "richard.hendricks@abstractapi.com",
  "suggested_correction": null,
  "email_deliverability": {
    "status": "deliverable",
    "status_detail": "valid_email",
    "is_format_valid": true,
    "is_smtp_valid": true,
    "is_mx_valid": true,
    "mx_records": [
      "alt2.aspmx.l.google.com",
      "aspmx.l.google.com",
      "alt3.aspmx.l.google.com",
      "alt4.aspmx.l.google.com",
      "alt1.aspmx.l.google.com"
    ]
  },
  "email_sender": {
    "first_name": "Richard",
    "last_name": "Hendricks",
    "email_provider_name": "Google",
    "organization_name": "Abstract API",
    "organization_type": "commercial"
  },
  "email_domain": {
    "domain": "abstractapi.com",
    "domain_age": 1871,
    "is_live_site": true,
    "registrar": "NameCheap, Inc.",
    "registrar_url": "https://namecheap.com",
    "date_registered": "2020-05-13",
    "date_last_renewed": "2025-04-13",
    "date_expires": "2026-05-13",
    "is_risky_tld": false
  }
}

Abstract Professional

{
  "email_address": "richard.hendricks@abstractapi.com",
  "suggested_correction": null,
  "email_deliverability": {
    "status": "deliverable",
    "status_detail": "valid_email",
    "is_format_valid": true,
    "is_smtp_valid": true,
    "is_mx_valid": true,
    "mx_records": [
      "alt2.aspmx.l.google.com",
      "aspmx.l.google.com",
      "alt3.aspmx.l.google.com",
      "alt4.aspmx.l.google.com",
      "alt1.aspmx.l.google.com"
    ]
  },
  "email_quality": {
    "score": "0.80",
    "is_free_email": false,
    "is_username_suspicious": false,
    "is_disposable": false,
    "is_catchall": true,
    "is_subaddress": false,
    "is_role": false,
    "is_dmarc_enforced": true,
    "is_spf_strict": false,
    "minimum_age": null
  },
  "email_sender": {
    "first_name": "Richard",
    "last_name": "Hendricks",
    "email_provider_name": "Google",
    "organization_name": "Abstract API",
    "organization_type": "commercial"
  },
  "email_domain": {
    "domain": "abstractapi.com",
    "domain_age": 1871,
    "is_live_site": true,
    "registrar": "NameCheap, Inc.",
    "registrar_url": "https://namecheap.com",
    "date_registered": "2020-05-13",
    "date_last_renewed": "2025-04-13",
    "date_expires": "2026-05-13",
    "is_risky_tld": false
  },
  "email_risk": {
    "address_risk_status": "low",
    "domain_risk_status": "medium"
  },
  "email_breaches": {
    "total_breaches": 0,
    "date_first_breached": null,
    "date_last_breached": null,
    "breached_domains": []
  }
}

Validating more than email in your product? Compare Email Validation plans with Phone Validation and IP Geolocation on one page.

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Email Validation API
key now
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See why the best developers build on Abstract
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Email Validation
that works where you do

The best build
on Abstract

Spammy signs up were an issue for us for a while, and we struggled to come up with the best way to identify all the variations in bad emails we were getting. Thankfully we found and quickly integrated with Abstract's email validation API, which saved us a bunch of time and gave us peace of mind.
Chris Stanley, Scope
Enterprise ready
Abstract comes with security, compliance, and reliability built into the core. That’s why the Fortune 500, governments, and businesses in critical industries like financial services, healthcare, and airlines trust us.
SSO/SAML login
24/7 support via email, chat, and phone
Technical onboarding support
Dedicated account manager
SOC 2 Type II & GDPR compliant

Email Validation and Verification API Changelog

Improved input normalization for addresses submitted with surrounding whitespace, mixed-case domains, or unencoded display names to reduce false is_valid_format failures.

July 21, 2026

Added support for RFC 7505 "null MX" records so domains that explicitly reject all mail now return UNDELIVERABLE instead of UNKNOWN.

July 6, 2026

Improved is_valid_format handling of quoted local parts and addresses containing consecutive dots to reduce false negatives on technically valid emails.

June 10, 2026

Tomba pricing and alternatives: common questions

How much does Tomba cost?

Tomba's Growth plan is $89 a month for 10,000 credits, split 5,000 finder and 5,000 verification, which is $0.0089 per credit. One email costs one credit and one phone number costs five. The free plan is 25 searches a month. Figures read from tomba.io/pricing on September 4, 2026.

What does Abstract return for each email?

One JSON response with the deliverability status, whether the SMTP server and MX records were found, whether the address is disposable, whether the format is valid, and a quality score from 0 to 1. You choose the threshold, so a signup form and a marketing list can apply different rules to the same data.

How does Abstract's pricing compare with Tomba's?

Abstract prices verification on its own: $17 a month billed annually ($19 billed monthly) for 5,000 requests, with 100 free requests renewing every month and no card. Tomba's Growth plan is $89 a month for 10,000 credits split between finding and verifying, with 25 free searches a month. If you only need the check, you pay for the check.

Does Abstract find email addresses?

Abstract verifies addresses you already collect and enriches company records through Company Enrichment. If discovery is part of your workflow, run the results of any finder through Abstract before they reach your CRM or your sending tool.

How do I test Abstract before paying?

Create a free account and send your first request with the key from your dashboard. Most teams are live in under 5 minutes, and the 100 free requests renew every month so you can test on real addresses. To see the response without writing code, use the free email verifier.

What does Tomba's email finder do?

It searches for business email addresses you do not already have, by person or by domain, and verifies them before returning them. Abstract does not find addresses; it verifies the ones you already collect. The two do different jobs, and plenty of teams run a finder alongside a verification API.

What is the best Tomba alternative for email verification?

If you only need verification, an API priced per request costs less than a bundle that also includes finder credits. Abstract is $17 a month billed annually for 5,000 requests, which is $0.0034 each against Tomba's $0.0089 per credit, and the free plan renews 100 requests every month rather than 25 searches.

Use cases

Teams use email validation to keep bad addresses and bad actors out.

Clean an email list before you sendBlock fake account signupsStop free trial abuse
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Email Validation API
key now
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