Clay vs MailerCheck: Data Enrichment Tool Comparison
Compare Clay and MailerCheck side by side. See pricing, features, and integrations to choose the right data enrichment tool for your needs.
Clay and MailerCheck serve different needs in B2B data enrichment. Clay is a data enrichment and workflow automation platform with 150+ integrations and AI-powered enrichment starting at $185/mo, suited to mid-market and enterprise teams. MailerCheck is an email list verification and deliverability tool starting free, better for budget-conscious teams focused on list validation rather than broad enrichment.
Key takeaways
- Clay's entry plan, Launch, costs $185/mo and includes 15,000 actions per month.
- MailerCheck offers 10 free credits on a new account and then charges $0.01 per credit on its pay as you go plan.
- Clay lists 14 integrations including Salesforce, HubSpot, Apollo.io, and ZoomInfo, compared to MailerCheck's 7 integrations such as Mailchimp, ActiveCampaign, and Zapier.
- Clay offers 3 pricing tiers, Launch, Growth, and Enterprise, while MailerCheck offers 2, Free credits and Pay as you go.
- Clay lists 9 total features including AI-powered enrichment via Claygent, while MailerCheck lists 8 including Email Insights and Inbox Placement.
Reviewed and updated September 5, 2026
Clay vs MailerCheck: Data Enrichment Tool Comparison
Clay and MailerCheck compete head-to-head in the B2B lead data and contact enrichment space. This guide compares their pricing tiers, feature sets, and integration ecosystems to help you make a confident decision.
The Quick Answer
By each vendor's own wording, Clay lists 150+ data provider integrations and ai-powered enrichment (claygent), while MailerCheck lists email list verification and email insights. A capability both offer can appear under different names, so read both feature lists below.
MailerCheck offers a lower entry point at $0/mo compared to Clay at $185/mo.
If your priority is finding accurate contact data for target accounts, both tools target it. The right choice depends on your budget, team size, and the specific capabilities you need most.
Understanding the Core Difference
Clay is Data enrichment and workflow automation platform with 150+ integrations and AI-powered enrichment (Claygent).
MailerCheck is Email list verification and deliverability testing tool that validates single addresses, bulk lists or new signups through an API, and tests email content and inbox placement before a send.
The two platforms take different approaches to solving the same core challenge.
Pricing Comparison
Launch
Free credits
Clay Pricing (as of September 2026)
| Plan | Price | Contacts |
|---|---|---|
| Launch | $185/mo | From 15,000 actions/month |
| Growth | $495/mo | From 40,000 actions/month |
| Enterprise | Contact Sales | Custom |
Source: Clay Pricing
MailerCheck Pricing (as of September 2026)
| Plan | Price | Emails |
|---|---|---|
| Free credits | Free | 10 free credits on a new account, for Email List Verification only |
| Pay as you go | Usage-based | 1,000 credits at the entry step, at $0.01 per credit; 1 credit = 1 email verification |
Source: MailerCheck Pricing
Pricing Analysis
MailerCheck offers the lower entry point ($0/mo vs $185/mo). Teams watching their budget will appreciate the savings, especially when starting out.
Clay offers 3 pricing tiers compared to MailerCheck's 2, giving you more granularity as you scale.
MailerCheck includes a free tier, which is helpful for evaluating the platform without upfront cost.
Features Breakdown
- 150+ data provider integrations
- AI-powered enrichment (Claygent)
- Unlimited users on all plans
- Credit rollover
- Workflow automation
- Data waterfall enrichment
- and 3 more listed below
- Email list verification
- Email Insights
- Inbox Placement
- Real-time API verification
- Usage report
- Single address verification
- and 2 more listed below
Clay Key Features
- 150+ data provider integrations
- AI-powered enrichment (Claygent)
- Unlimited users on all plans
- Credit rollover
- Workflow automation
- Data waterfall enrichment
- Custom API key support
- HTTP API integration
- Webhooks
MailerCheck Key Features
- Email list verification
- Email Insights
- Inbox Placement
- Real-time API verification
- Usage report
- Single address verification
- Credits and autopay
- Statuses
The two lists below are a diff of each vendor's own feature list by exact wording, so a capability both tools offer can appear on either side under a different name.
Listed only by Clay
- 150+ data provider integrations
- AI-powered enrichment (Claygent)
- Unlimited users on all plans
- Credit rollover
- Workflow automation
- Data waterfall enrichment
- Custom API key support
- HTTP API integration
- Webhooks
Listed only by MailerCheck
- Email list verification
- Email Insights
- Inbox Placement
- Real-time API verification
- Usage report
- Single address verification
- Credits and autopay
- Statuses
Integration Ecosystem
Clay Integrations
Clay connects with: Salesforce, HubSpot, Pipedrive, Close, Apollo.io, Clearbit, ZoomInfo, Lemlist, Instantly, Smartlead, OpenAI, Google Sheets, Airtable, Notion.
MailerCheck Integrations
MailerCheck connects with: MailerLite, Mailchimp, ActiveCampaign, GetResponse, ConvertKit, Zapier, Make.
Integrations listed only by Clay: Salesforce, HubSpot, Pipedrive, Close, Apollo.io, Clearbit, ZoomInfo, Lemlist, Instantly, Smartlead, OpenAI, Google Sheets, Airtable, Notion.
Integrations listed only by MailerCheck: MailerLite, Mailchimp, ActiveCampaign, GetResponse, ConvertKit, Zapier, Make.
Use Case Recommendations
Best Fit for Clay
- Mid-market to enterprise teams with established B2B lead data and contact enrichment budgets
- Teams that need a wide feature set (9 capabilities listed)
- Organizations with complex tech stacks needing broad integration support (14 integrations)
- Enterprise buyers who prefer custom pricing and dedicated support
Best Fit for MailerCheck
- Budget-conscious teams looking for an affordable data enrichment tool
- Teams that want to start free and scale up as needs grow
- Revenue operations teams building targeted prospect lists
- Marketing teams enriching CRM data for segmentation
Feature Comparison Summary
| Feature | Clay | MailerCheck |
|---|---|---|
| Starting Price | $185/mo | Free |
| Top Tier Price | Contact Sales | Usage-based |
| Total Features Listed | 9 | 8 |
| Integrations | 14 | 7 |
Getting Started Checklist
- Define your B2B lead data and contact enrichment requirements and monthly budget
- Estimate your expected data credits or contact lookups to find the right tier
- List the integrations your team currently relies on
- Sign up for free trials or demos of both platforms
- Run a small test with each tool before making a commitment
- Evaluate the onboarding experience and support quality
Final Thoughts
Clay and MailerCheck both serve the B2B lead data and contact enrichment market. MailerCheck offers a more accessible entry point, while Clay starts at $185/mo. Your decision should weigh pricing against the specific features that matter most for your workflow.
Start with a trial of each to see which platform fits your team's daily process. The best tool is the one your team actually uses consistently.
Pricing and features verified as of September 2026. Visit Clay and MailerCheck for current information.
Frequently asked questions.
Frequently asked questions- What is the main difference between Clay and MailerCheck?
- Clay is a data enrichment and workflow automation platform with over 150 data provider integrations and AI-powered enrichment called Claygent. MailerCheck is an email list verification and deliverability testing tool that validates single addresses, bulk lists, or new signups through an API and tests inbox placement before sending.
- Which tool is cheaper, Clay or MailerCheck?
- MailerCheck has the lower entry point, starting free with 10 free credits on a new account, compared to Clay's Launch plan at $185/mo. MailerCheck then moves to a usage-based pay as you go model at $0.01 per credit, while Clay's paid tiers go up to $495/mo for Growth or custom Enterprise pricing.
- How many integrations do Clay and MailerCheck offer?
- Clay lists 14 integrations including Salesforce, HubSpot, Pipedrive, Apollo.io, Clearbit, ZoomInfo, and OpenAI. MailerCheck lists 7 integrations including MailerLite, Mailchimp, ActiveCampaign, GetResponse, ConvertKit, Zapier, and Make.
- Is Clay or MailerCheck better for enterprise teams?
- Clay is positioned as the better fit for mid-market to enterprise teams with established data enrichment budgets, given its wider feature set of 9 capabilities and 14 integrations, plus custom Enterprise pricing and dedicated support. MailerCheck is aimed more at budget-conscious teams and revenue operations teams building targeted prospect lists.
- How many pricing tiers do Clay and MailerCheck each have?
- Clay has 3 pricing tiers: Launch at $185/mo, Growth at $495/mo, and a custom-priced Enterprise tier. MailerCheck has 2: a Free credits tier for new accounts and a usage-based Pay as you go tier charging $0.01 per credit.
About the author.
Tim Carden is CMO / CTO at RevenueFlow, which builds and operates outbound revenue engines for B2B companies. Studied at McGill University.
Tim Carden · CMO / CTO
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