Head to head
Clay vs ZoomInfo
As a data enrichment API, ZoomInfo rates higher on the APIbenchmarks Index, 67.5 to 66.9, a 0.6-point gap. Here is how they compare on each criterion.
Criterion by criterion
| Criterion | Clay | ZoomInfo |
|---|---|---|
| Documentation & DX | ||
| Reliability | ||
| Ecosystem & SDKs | ||
| Accessibility | ||
| APIbenchmarks Index | 66.9 | 67.5 |
Specifications
| Clay | ZoomInfo | |
|---|---|---|
| Best for | Multi-provider enrichment orchestration | Enterprise B2B intelligence |
| Free tier | Free plan with limited credits (no card) | No |
| Pricing | Data Credits + Actions | Annual contract + bulk credits |
| Official SDKs | 1 languages | 3 languages |
Is Clay better than ZoomInfo?
On the APIbenchmarks Index, ZoomInfo rates higher (67.5 vs 66.9). It leads on the four weighted criteria, but price is reported separately, so the best choice still depends on your budget.
Verdict in one line
ZoomInfo leads by 0.6 points (67.5 vs 66.9) and wins 3 of 4 criteria; Clay wins 1.
Winner by criterion
| Criterion | Winner | ||
|---|---|---|---|
| Documentation & DX | 65 | 70 | |
| Reliability | 75 | 90 | |
| Ecosystem & SDKs | 60 | 72 | |
| Accessibility | 68 | 30 |
Choose Clay if… / choose ZoomInfo if…
- →accessibility matters most to you (68 vs 30)
- →you want a free tier to start (Free plan with limited credits (no card))
- →your use case matches its focus: multi-provider enrichment orchestration
- →documentation & dx matters most to you (70 vs 65)
- →reliability matters most to you (90 vs 75)
- →ecosystem & sdks matters most to you (72 vs 60)
- →you need broad SDK coverage (3 official SDKs vs 1)
- →your use case matches its focus: enterprise b2b intelligence
Pricing side by side
- Model
- Data Credits + Actions
- Free tier
- Free plan with limited credits (no card)
- Free$0/mo
- Launchfrom ~$167–185/mo (annual)
- Growthfrom ~$446–495/mo (annual)
- EnterpriseCustom (annual commitment, ~$30k/yr+ typical)
- Model
- Annual contract + bulk credits
- Free tier
- No
- ZoomInfo Lite$0
- Professional~$14,995/year
- Advanced~$24,995-$30,000/year
- Elite$39,995+/year
- Enrichment API (HubSpot Marketplace)from ~$5,000/year
- Full Prospecting / Enterprise APIfrom ~$50,000/year
Vendor-published pricing, verified 2026-06-27 (Clay) and 2026-06-27 (ZoomInfo).
SDK and language coverage
Both · 0
None
Only Clay · 1
No official client SDK libraries published; integration is via HTTP API node, webhooks, and native CRM connectors
Only ZoomInfo · 3
Python (official zi_api_auth_client, MIT)Java (PKI auth library)NodeJS (PKI auth library)
Strengths and weaknesses
- +Waterfall enrichment chains 150+ data providers under one subscription, materially raising email/firmographic match rates versus any single source
- +Combines enrichment, AI web research (Claygent), and signal monitoring (funding, hiring, job changes, tech installs) in one platform
- +Spreadsheet-style table UI plus Clay University make complex multi-step enrichment accessible without code
- –Dual credit/action model causes fast, hard-to-predict credit burn; auto-recharge billing reportedly fires without advance warning
- –Steep learning curve, reviewers cite hours in week one and 2–3 weeks before workflows are reliable
- –Phone/mobile number coverage is weak (~30–35% match rate)
- +Deepest enterprise B2B database among enrichment APIs: ~321M+ contacts across 104M+ companies with strong direct-dial and mobile phone coverage
- +Excellent accuracy and coverage for US/North American enterprise contacts (VP+ at 200+ employee firms)
- +Asynchronous Scaling APIs with webhook callbacks handle large batch enrichment jobs cleanly
- –Opaque, sales-gated pricing with five-figure annual minimums (~$50K/year for the full API)
- –Coverage and accuracy drop sharply outside the US/Canada
- –Data freshness is cycle-based (~90-day validation refresh), not real-time, leading to email bounces in cold outreach
Clay vs ZoomInfo: questions
- Which has better documentation, Clay or ZoomInfo?
- ZoomInfo scores higher on documentation and developer experience: 70 vs 65 out of 100.
- Which is more reliable, Clay or ZoomInfo?
- ZoomInfo scores higher on reliability: 90 vs 75 out of 100.
- Do Clay and ZoomInfo have a free tier?
- Clay: yes (Free plan with limited credits (no card)). ZoomInfo: no free tier.
- How are Clay and ZoomInfo priced?
- Clay: Data Credits + Actions. ZoomInfo: Annual contract + bulk credits.
- Which has more official SDKs?
- ZoomInfo lists 3 official SDKs, Clay lists 1.