Head to head
Fiber vs ZoomInfo
As a data enrichment API, Fiber rates higher on the APIbenchmarks Index, 69.9 to 67.5, a 2.4-point gap. Here is how they compare on each criterion.
Criterion by criterion
| Criterion | Fiber | ZoomInfo |
|---|---|---|
| Documentation & DX | ||
| Reliability | ||
| Ecosystem & SDKs | ||
| Accessibility | ||
| APIbenchmarks Index | 69.9 | 67.5 |
Specifications
| Fiber | ZoomInfo | |
|---|---|---|
| Best for | Agent-native sales and recruiting data pipelines | Enterprise B2B intelligence |
| Free tier | No | No |
| Pricing | Credit-based ($0.02/credit) on monthly plans | Annual contract + bulk credits |
| Official SDKs | 5 languages | 3 languages |
Is Fiber better than ZoomInfo?
On the APIbenchmarks Index, Fiber rates higher (69.9 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
Fiber leads by 2.4 points (69.9 vs 67.5) and wins 3 of 4 criteria; ZoomInfo wins 1.
Winner by criterion
| Criterion | Winner | ||
|---|---|---|---|
| Documentation & DX | 80 | 70 | |
| Reliability | 60 | 90 | |
| Ecosystem & SDKs | 74 | 72 | |
| Accessibility | 62 | 30 |
Choose Fiber if… / choose ZoomInfo if…
- →documentation & dx matters most to you (80 vs 70)
- →ecosystem & sdks matters most to you (74 vs 72)
- →accessibility matters most to you (62 vs 30)
- →you need broad SDK coverage (5 official SDKs vs 3)
- →your use case matches its focus: agent-native sales and recruiting data pipelines
- →reliability matters most to you (90 vs 60)
- →your use case matches its focus: enterprise b2b intelligence
Pricing side by side
- Model
- Credit-based ($0.02/credit) on monthly plans
- Free tier
- No
- Prospector$300/mo
- Growth$900/mo
- Enterprise$2,400/mo
- Bulk / datasetsFrom $1,000/mo (datasets)
- Trial$0 for 7 days
- 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 (Fiber) and 2026-06-27 (ZoomInfo).
SDK and language coverage
Both · 1
Python (fiberai)
Only Fiber · 4
Node.js / TypeScript (@fiberai/sdk)REST API and OpenAPIMCP servers (v3 OAuth, v2, lite)First-party coding-agent plugin
Only ZoomInfo · 2
Java (PKI auth library)NodeJS (PKI auth library)
Strengths and weaknesses
- +Official Node (@fiberai/sdk) and Python (fiberai) SDKs
- +Three MCP servers (v3 OAuth, v2 API key, lite) and a first-party plugin
- +Agent-native docs: per-operation markdown, llms.txt and openapi.json
- –No free tier; entry plan $300/month
- –Trial requirements conflict between homepage and pricing page
- –No confirmed official status page or SLA
- +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
Fiber vs ZoomInfo: questions
- Which has better documentation, Fiber or ZoomInfo?
- Fiber scores higher on documentation and developer experience: 80 vs 70 out of 100.
- Which is more reliable, Fiber or ZoomInfo?
- ZoomInfo scores higher on reliability: 90 vs 60 out of 100.
- Do Fiber and ZoomInfo have a free tier?
- Fiber: no free tier. ZoomInfo: no free tier.
- How are Fiber and ZoomInfo priced?
- Fiber: Credit-based ($0.02/credit) on monthly plans. ZoomInfo: Annual contract + bulk credits.
- Which has more official SDKs?
- Fiber lists 5 official SDKs, ZoomInfo lists 3.