People Search API

Reverse lookup.
Real identity data.
Per call.

Pass an email, phone, or domain — get back name, DOB, address, and phone numbers as structured JSON. Instant results, no subscription.

● No subscription ● $0.003 / lookup ● Balance never expires

kestrel api · live

Request

GET https://kestrelapi.com/lookup/email
  ?api_key=kst_your_api_key
  &q=someone@example.com
  &deep=1

Response

{
  "name":    "John Doe",
  "dob":     "1985-03-14",
  "numbers": ["+12125550199"],
  "address": "42 W 34th St, New York NY",
  "_cost":   0.0058
}

Features

Four endpoints. Everything you need.

No bloat. Just the lookups that matter, priced by what gets used.

/lookup/email

Email lookup

Name, DOB, addresses, and phone numbers tied to any email. Works on personal and business addresses.

/lookup/phone

Phone lookup

Reverse search any number — US or international. Carrier and line type available as an add-on.

/lookup/domain

Domain search

Find all contacts associated with a domain. Ideal for lead enrichment and business intelligence.

deep=1

Deep enrichment

Criminal records, related persons, verified numbers, and historical addresses. Only charged on match.

Pricing

^$0.003

per lookup — email, phone, or domain

Base lookup

email, phone, or domain

$0.00275

Carrier info

line type + carrier name

+$0.0006

Deep enrichment

only charged if match found

+$0.0033

Why Kestrel

⚡

No subscription Buy credit when you need it. No monthly lock-in, ever.

🛡

Failed lookups are free No data found? You're not charged.

∞

Balance never expires Prepaid credit rolls forward indefinitely.

⚙

20 req/s per key Built for bulk. Simple REST — works with any HTTP client.

Ready to send your first lookup?