Head to head
FullEnrich vs ZoomInfo
As a data enrichment API, FullEnrich rates higher on the APIbenchmarks Index, 72.5 to 67.5, a 5-point gap. Here is how they compare on each criterion.
Criterion by criterion
| Criterion | FullEnrich | ZoomInfo |
|---|---|---|
| Documentation & DX | ||
| Reliability | ||
| Ecosystem & SDKs | ||
| Accessibility | ||
| APIbenchmarks Index | 72.5 | 67.5 |
Specifications
| FullEnrich | ZoomInfo | |
|---|---|---|
| Best for | Waterfall email and mobile enrichment | Enterprise B2B intelligence |
| Free tier | 50 free trial credits, no card | No |
| Pricing | Per successful result (email 1, mobile 10) | Annual contract + bulk credits |
| Official SDKs | 5 languages | 3 languages |
Is FullEnrich better than ZoomInfo?
On the APIbenchmarks Index, FullEnrich rates higher (72.5 vs 67.5). 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
FullEnrich leads by 5 points (72.5 vs 67.5) and wins 2 of 4 criteria; ZoomInfo wins 2.
Winner by criterion
| Criterion | Winner | ||
|---|---|---|---|
| Documentation & DX | 80 | 70 | |
| Reliability | 66 | 90 | |
| Ecosystem & SDKs | 64 | 72 | |
| Accessibility | 80 | 30 |
Choose FullEnrich if… / choose ZoomInfo if…
- →documentation & dx matters most to you (80 vs 70)
- →accessibility matters most to you (80 vs 30)
- →you want a free tier to start (50 free trial credits, no card)
- →you need broad SDK coverage (5 official SDKs vs 3)
- →your use case matches its focus: waterfall email and mobile enrichment
- →reliability matters most to you (90 vs 66)
- →ecosystem & sdks matters most to you (72 vs 64)
- →your use case matches its focus: enterprise b2b intelligence
Pricing side by side
- Model
- Per successful result (email 1, mobile 10)
- Free tier
- 50 free trial credits, no card
- Free trial$0
- Starter / ProAbout $29-$55/mo (third-party figures)
- EnterpriseCustom
- 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 2026-10-07 (FullEnrich) and 2026-06-27 (ZoomInfo).
SDK and language coverage
Both · 0
None
Only FullEnrich · 5
REST API (v1, v2)OpenAPI specsMCP serverZapier, Make, n8n, Clay, HubSpot integrationsNo official SDKs found
Only ZoomInfo · 3
Python (official zi_api_auth_client, MIT)Java (PKI auth library)NodeJS (PKI auth library)
Strengths and weaknesses
- +Waterfall across 20+ providers with success-based billing
- +Webhook delivery recommended, plus polling for results
- +v1 and v2 OpenAPI specs and an llms.txt docs index
- –No official SDKs found
- –Mobile reveals cost 10 credits and personal emails 3
- –Enrichment-only: no signals, outreach or native CRM breadth
- +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
FullEnrich vs ZoomInfo: questions
- Which has better documentation, FullEnrich or ZoomInfo?
- FullEnrich scores higher on documentation and developer experience: 80 vs 70 out of 100.
- Which is more reliable, FullEnrich or ZoomInfo?
- ZoomInfo scores higher on reliability: 90 vs 66 out of 100.
- Do FullEnrich and ZoomInfo have a free tier?
- FullEnrich: yes (50 free trial credits, no card). ZoomInfo: no free tier.
- How are FullEnrich and ZoomInfo priced?
- FullEnrich: Per successful result (email 1, mobile 10). ZoomInfo: Annual contract + bulk credits.
- Which has more official SDKs?
- FullEnrich lists 5 official SDKs, ZoomInfo lists 3.