Head to head
Cognism vs FullContact
As a data enrichment API, FullContact rates higher on the APIbenchmarks Index, 68.4 to 60, a 8.4-point gap. Here is how they compare on each criterion.
Criterion by criterion
| Criterion | Cognism | FullContact |
|---|---|---|
| Documentation & DX | ||
| Reliability | ||
| Ecosystem & SDKs | ||
| Accessibility | ||
| APIbenchmarks Index | 60.0 | 68.4 |
Specifications
| Cognism | FullContact | |
|---|---|---|
| Best for | GDPR-compliant EMEA contact data for sales teams | Identity resolution / Identity Graph |
| Free tier | No | 100 API calls/mo (Developer plan) |
| Pricing | Annual platform contract + search tokens/credits | Per matched API call |
| Official SDKs | 3 languages | 7 languages |
Is Cognism better than FullContact?
On the APIbenchmarks Index, FullContact rates higher (68.4 vs 60). 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
FullContact leads by 8.4 points (68.4 vs 60) and wins 2 of 4 criteria; Cognism wins 1.
Winner by criterion
| Criterion | Winner | ||
|---|---|---|---|
| Documentation & DX | 72 | 70 | |
| Reliability | 66 | 70 | |
| Ecosystem & SDKs | 62 | 62 | Tie |
| Accessibility | 32 | 72 |
Choose Cognism if… / choose FullContact if…
- →documentation & dx matters most to you (72 vs 70)
- →your use case matches its focus: gdpr-compliant emea contact data for sales teams
- →reliability matters most to you (70 vs 66)
- →accessibility matters most to you (72 vs 32)
- →you want a free tier to start (100 API calls/mo (Developer plan))
- →you need broad SDK coverage (7 official SDKs vs 3)
- →your use case matches its focus: identity resolution / identity graph
Pricing side by side
- Model
- Annual platform contract + search tokens/credits
- Free tier
- No
- FreeNone
- Platform plansCustom (third-party: about $15k-$25k/yr entry)
- Enterprise / Diamond dataCustom (third-party: $40k-$100k+/yr)
- 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)
Vendor-published pricing, verified 2026-10-07 (Cognism) and 2026-06-27 (FullContact).
SDK and language coverage
Both · 0
None
Only Cognism · 3
REST API (OAuth 2.0)MCP serverNo official SDKs found
Only FullContact · 7
Go (official V3 client)Java 8 (official V3 client)Java 11+ (official V3 client)Python (official V3 client)Ruby (archived/legacy)PHP (archived/legacy)Postman collection
Strengths and weaknesses
- +Clear OAuth 2.0 client-credentials auth with documented 20-minute tokens
- +Published rate limits (500 req/min per operation) with standard RateLimit headers
- +Separate search-token and credit metering visible in response headers
- –API requires a subscription entitlement and org-level enablement
- –No public pricing or free tier; contracts commonly $15k-$100k+/yr per third-party estimates
- –No official SDKs or changelog found
- +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
Cognism vs FullContact: questions
- Which has better documentation, Cognism or FullContact?
- Cognism scores higher on documentation and developer experience: 72 vs 70 out of 100.
- Which is more reliable, Cognism or FullContact?
- FullContact scores higher on reliability: 70 vs 66 out of 100.
- Do Cognism and FullContact have a free tier?
- Cognism: no free tier. FullContact: yes (100 API calls/mo (Developer plan)).
- How are Cognism and FullContact priced?
- Cognism: Annual platform contract + search tokens/credits. FullContact: Per matched API call.
- Which has more official SDKs?
- FullContact lists 7 official SDKs, Cognism lists 3.