Head to head
FullContact vs People Data Labs
As a data enrichment API, People Data Labs rates higher on the APIbenchmarks Index, 84.9 to 68.4, a 16.5-point gap. Here is how they compare on each criterion.
Criterion by criterion
| Criterion | FullContact | People Data Labs |
|---|---|---|
| Documentation & DX | ||
| Reliability | ||
| Ecosystem & SDKs | ||
| Accessibility | ||
| APIbenchmarks Index | 68.4 | 84.9 |
Specifications
| FullContact | People Data Labs | |
|---|---|---|
| Best for | Identity resolution / Identity Graph | Bulk person/company data for builders |
| Free tier | 100 API calls/mo (Developer plan) | 100 person/company lookups/mo (emails/phones obfuscated) |
| Pricing | Per matched API call | Per enrichment credit |
| Official SDKs | 7 languages | 7 languages |
Is FullContact better than People Data Labs?
On the APIbenchmarks Index, People Data Labs rates higher (84.9 vs 68.4). 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
People Data Labs leads by 16.5 points (84.9 vs 68.4) and wins 4 of 4 criteria.
Winner by criterion
| Criterion | Winner | ||
|---|---|---|---|
| Documentation & DX | 70 | 88 | |
| Reliability | 70 | 82 | |
| Ecosystem & SDKs | 62 | 80 | |
| Accessibility | 72 | 90 |
Choose FullContact if… / choose People Data Labs if…
- →your use case matches its focus: identity resolution / identity graph
- →documentation & dx matters most to you (88 vs 70)
- →reliability matters most to you (82 vs 70)
- →ecosystem & sdks matters most to you (80 vs 62)
- →accessibility matters most to you (90 vs 72)
- →your use case matches its focus: bulk person/company data for builders
Pricing side by side
- Model
- Per matched API call
- Free tier
- 100 API calls/mo (Developer plan)
- Developer (Free)$0
- Growth$99/month
- Basic~$500/month
- Premium~$2,000/month
- Enterprise$10,000+/month (custom)
- Model
- Per enrichment credit
- Free tier
- 100 person/company lookups/mo (emails/phones obfuscated)
- Free$0/mo
- ProFrom ~$98/mo
- EnterpriseCustom (commonly $20k-$100k+/yr)
Vendor-published pricing, verified 2026-06-27 (FullContact) and 2026-06-27 (People Data Labs).
SDK and language coverage
Both · 3
Go (official V3 client)Python (official V3 client)Ruby (archived/legacy)
Only FullContact · 4
Java 8 (official V3 client)Java 11+ (official V3 client)PHP (archived/legacy)Postman collection
Only People Data Labs · 4
JavaScript / TypeScript (Node + browser)RustcURL / RESTOpenAPI (Swagger) specification
Strengths and weaknesses
- +Multi-field enrichment: accepts many identifier types (email, phone, name+address, social URLs/usernames, MAIDs, plus Resolve PersonIDs) to lift match rates
- +Deep attribute coverage, 900+ appendable data attributes via Person Insights Bundles (demographics, household, employment history, affinities, shopping habits)
- +Tunable confidence: ML 'Belief Vector' lets callers set confidence thresholds per request to balance precision vs. match rate
- –Real-world match rates often far below the advertised 93%, reviewers report ~40-50%, especially outside the U.S.
- –Data-quality complaints of false positives in age, employment, and education fields, with no data-freshness timestamps on attributes
- –Rate limit (~600 queries/min) too low for large batch enrichment jobs
- +Pay only for successful matches (HTTP 200), missed lookups are not billed
- +Very large breadth: 3B+ person profiles across 200+ countries and ~70M company profiles
- +Developer-first REST API with Elasticsearch-style search queries praised as flexible and well-documented
- –Data refreshes roughly monthly, so job titles and employers can be weeks-to-months stale
- –Heavy reliance on LinkedIn means non-LinkedIn people are under-represented and some self-reported titles leak through
- –Verified emails and direct-dial phones often require extra Person Identify calls at higher per-match cost
FullContact vs People Data Labs: questions
- Which has better documentation, FullContact or People Data Labs?
- People Data Labs scores higher on documentation and developer experience: 88 vs 70 out of 100.
- Which is more reliable, FullContact or People Data Labs?
- People Data Labs scores higher on reliability: 82 vs 70 out of 100.
- Do FullContact and People Data Labs have a free tier?
- FullContact: yes (100 API calls/mo (Developer plan)). People Data Labs: yes (100 person/company lookups/mo (emails/phones obfuscated)).
- How are FullContact and People Data Labs priced?
- FullContact: Per matched API call. People Data Labs: Per enrichment credit.
- Which has more official SDKs?
- Both list 7 official SDKs.