Social — entry 010 of 39

Full Contact

Verified Jul 2026

FullContact's Enrichment APIs resolve a person or company record — an email, name, or social handle — into a fuller identity profile, aimed at CRM, ad-tech, and fraud-prevention use cases rather than casual lookups. Every request authenticates with a per-account API key sent as an Authorization: Bearer header, and access is sold through contact-sales enterprise contracts rather than self-serve signup.

identity-resolutionenrichmentcontact-dataapi-keyenterprise
AuthenticationAPI KeySign up with the provider to obtain credentials.
HTTPSSupportedTraffic is encrypted in transit.
CORSDisabledBrowser calls need a server-side proxy.
PricingPaidSubscription required — no meaningful free tier.
FormatsJSONResponses can be requested as JSON.

GreatAPIs Score

Score53out of 100
Authentication15/25API key required
Pricing9/20Paid API
Docs0/20No docs or spec available
Formats9/15Single response format
Freshness20/20Verified within 6 months

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Scored 53 on greatapis.com
<a href="https://greatapis.com/api/full-contact/"><img src="https://greatapis.com/badge/full-contact.svg" alt="Scored 53 on greatapis.com"></a>

Auth quickstart

  1. Sign up with the provider to get an API key.
  2. Send it on every request as a headerAuthorization: <key>
  3. The exact header isn't documented — Authorization is a common default; confirm in the provider's docs.
Stored keyNo key stored

Your key is stored only in this browser (localStorage) and sent directly to the API — never to greatapis.