Choose a contact-enrichment API around the identifiers you already have, the fields you require and the permitted use. Compare successful enrichment, ambiguous results, delivery behavior and consumption separately from website visitor identification.
This is a Leadpipe-authored buying guide. Product statements are based on the linked vendor references; evaluation steps are recommendations, not reported test results.
Start with the input, not a database total
An email address, professional-profile URL and name-plus-company input offer different evidence. A provider can return a plausible record without resolving the intended person. Define acceptance and unknown cases before measuring coverage.
Documented interfaces to evaluate
| Candidate | Published capability | Buyer-specific check |
|---|---|---|
| Apollo | People enrichment using supplied identifiers; some phone results are asynchronous | Account access, required fields, callback behavior and consumption |
| LeadMagic | Contact and company enrichment functions | Input requirements, field status and the credit rules for selected operations |
| FullContact | Enrichment and identity-resolution interfaces | Identifier persistence, data rights and intended use |
| FullEnrich | Bulk contact enrichment with result delivery options | Per-contact completion, partial failures and record correlation |
| Leadpipe | Website visitor identification with API and webhook delivery | Whether your starting requirement is a website event or an existing record |
These are capability descriptions, not measured latency or accuracy rankings. Confirm current access and plan entitlements with each provider.
Evaluate the response beyond HTTP success
Check whether a response contains an accepted match, an unresolved input or a partial result. Preserve the input record identifier so asynchronous updates return to the correct CRM row. Do not overwrite trusted values solely because a response was delivered successfully.
Include missing fields, stale employers, conflicting identities and duplicate records in the sample. Compare accepted incremental data against all billable activity. If the workflow uses multiple providers, log which one supplied each field and how conflicts are resolved.
Define the production contract
Request rate and usage limits, processing terms, retention, deletion and the rights for your intended use. Internal enrichment and exposing data inside a customer-facing product can require different agreements. Establish who owns retries, partial failures and downstream suppression.
Keep secrets on the server and restrict them to the needed operations. The buying decision should include implementation and maintenance effort, not just a per-lookup amount.
Use data enrichment tools for the broader workflow comparison, Clay alternatives for orchestration choices and Apollo pricing for a plan-based example.
Where Leadpipe fits
Leadpipe supports both account-level and person-level workflows. Its IP to Company API retrieves stored company information from an IPv4 or IPv6 address; its separate Identification product supplies eligible visitor records and activity. Choose company context for account research and person-level output when the action requires a specific visitor. A company lookup returns no people or visits. Confirm API eligibility and its separate lookup allowance in the official documentation.
Person-level coverage is strongest in the US. EU/UK traffic defaults to company-level identification; person-level requires affirmative consent. Fields can be missing, so judge required output on your actual traffic. If you need research signals from outside your website, evaluate Orbit separately and check its audience allowances.
The current pricing page lists Pro 500 at $147/month for 500 identification credits. The trial is 7 days or 500 profiles, whichever comes first, no card. Confirm the delivery and data-use requirements of your chosen plan.
Use the vendor evaluation kit to record the same acceptance criteria for every candidate. Start a Leadpipe trial when website identification is the requirement you want to measure.
Related decisions
Browse the comparison directory for alternatives and head-to-head guides. Use the software buying guide to define requirements and the person-versus-company guide to interpret identification results.
Sources and review basis
Published by Leadpipe. Vendor references support product descriptions; recommendations reflect our assessment of fit. Confirm current plan and contract terms before buying.
