Whitepages Pro API

Q: What is the Whitepages Pro API?

Whitepages Pro is a contact and property data API for enriching, updating, and matching customer records. It's powered by Identity Graph, the matching platform spanning 350 million identity records, connected through 4 billion data linkages.

Make every contact and property record in your business more complete, current, and connected.

The contact and property data API powered by Identity Graph, our matching platform built on 28 years of US identity resolution and informed by tens of millions of monthly searches on Whitepages.com.

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Self-serve plansScale as neededEasy implementationFor SMBs to enterprises

Authoritative Data at Scale: Whitepages Identity Graph

350M

Identity Records

673M

Phone & Address Records

571M

Email Addresses

112M

Property Records

4B

Data Linkages

You have contact data. We make it better.

Most contact data is stale the day you collect it. People move, change numbers, and switch emails — and CRMs decay 25–30% per year. That decay quietly costs you: missed deals, wasted outreach, customers you can't reach when it matters. Your contact list is one of the most valuable assets your business owns — Whitepages Pro keeps it working through three jobs the API is built around:

Enrich and Append: Add missing phones, emails, addresses, and property details to records you already have.
Update: Refresh contact information that's gone stale, so you can reach and stay connected with your customers and prospects.
Verify: Confirm a contact is who they say they are and match data to the person and property associated with it.

Built for the Industries That Work with People and Property

Real Estate

Home Services

Insurance

Staffing & Recruiting

Legal

Healthcare

Key Data Returned from Whitepages Pro

Every query runs on the Whitepages Identity Graph. Query by name, phone number, address, or combinations of inputs to append your contact data records.

Person name and aliases
Current and prior addresses
Phone numbers with line type (mobile, landline, VoIP) and confidence scores
Email addresses with confidence scores from 0 to 100
Relatives
Properties owned, residents, occupancy status

Sample Requests and Responses

▾{
name: "John Smith",
▸aliases: [ 3 items ],
date_of_birth: "1985-04-12",
▾phones: [
▾{
number: "(206) 555-0142",
type: "mobile",
score: 95
},
▸{ … },
▸{ … }
],
▾emails: [
▾{
email: "john.smith@example.com",
score: 92
},
▸{ … }
],
▾current_addresses: [
▾{
address_id: "ASAMPLE0001",
full_address: "123 Main Street, Seattle, WA 98101",
line1: "123 Main Street",
city: "Seattle",
state: "WA",
zip: "98101"
}
],
▾historic_addresses: [
▸{ … },
▸{ … }
],
id: "PSAMPLE0001",
is_dead: false,
▸owned_properties: [ 1 item ],
linkedin_url: "https://www.linkedin.com/in/john-smith-sample-001",
company_name: "Acme Corporation",
job_title: "Senior Software Engineer",
▸relatives: [ 3 items ],
match_score: 95,
▸matched_by: [ 2 items ]
},
▾{
name: "Sarah Johnson",
▸aliases: [ 3 items ],
date_of_birth: "1990-08-22",
▾phones: [
▾{
number: "(312) 555-0119",
type: "mobile",
score: 92
},
▸{ … }
],
▾emails: [
▾{
email: "sarah.johnson@example.com",
score: 88
},
▸{ … }
],
▾current_addresses: [
▾{
address_id: "ASAMPLE0004",
full_address: "456 Elm Street, Chicago, IL 60601",
line1: "456 Elm Street",
city: "Chicago",
state: "IL",
zip: "60601"
}
],
▾historic_addresses: [
▸{ … }
],
id: "PSAMPLE0002",
is_dead: false,
▸owned_properties: [ 1 item ],
linkedin_url: "https://www.linkedin.com/in/sarah-johnson-sample-002",
company_name: "Globex Industries",
job_title: "Product Manager",
▸relatives: [ 3 items ],
match_score: 87,
▸matched_by: [ 2 items ]
},
▸{ … },
▸{ … },
▸{ … },
… 1 more

Why Whitepages Pro API

Whitepages has been a trusted source of US identity data since 1997, with tens of millions of monthly users and more than 250,000 business customers. Identity Graph, the matching platform behind the Whitepages Pro API, is built on 28 years of that work and continuously informed by how those millions of people search every month. The result is a richer foundation for matching, ranking, and resolving identity than aggregator-only sources can provide.

Whitepages is also the original team behind Ekata (enterprise identity, acquired by Mastercard) and Hiya (call protection, used by hundreds of millions worldwide). Whitepages Pro applies that experience to a developer-first contact and property data API.

Built for Modern Data Workflows

MCP server — Connect Whitepages Pro to Claude, Cursor, and other MCP-compatible tools. View MCP docs →

LLM-ready responses — Clean, structured JSON designed to drop into prompt pipelines and retrieval workflows without reshaping.

Illustration of cloud hosting connected to laptops and devices through data pipelines

What Whitepages Pro API Customers Are Saying

Higher Quality Data

"Whitepages has uniquely strong data quality. Where other providers come up empty, Whitepages consistently fills in gaps with accurate contact information that other providers miss."

– Dylan Goren, Pillar

Reliable with a Straightforward Setup

"Integrating the Whitepages Pro API into our system was incredibly straightforward. We were up and running in no time, and it immediately streamlined how we validate contacts in our database."

– Dave Ryan, Liberty Mineral Partners

Property and Person Data

"Whitepages Pro is a key part of how we connect with homeowners after fire incidents. The owner and resident data is especially useful for contacting the right people."

– Brian Liu, Noble Public Adjusting Group

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Trusted by 250,000 businesses and tens of millions of monthly users

Whitepages Pro API FAQs

What is the Whitepages Pro API?

Whitepages Pro is a contact and property data API for enriching, updating, and matching customer records. It's powered by Identity Graph, the matching platform spanning 350 million identity records, connected through 4 billion data linkages.

What data does it provide?

Data returned includes names, AKAs or aliases, current and historical addresses, phone numbers, email addresses, employment information, relatives, property ownership, resident and occupancy data.

What can I search by?

The same API powers multiple capabilities:

People Search API – Search by name to return addresses, phones, and emails
Reverse Phone API – Search by phone number to return the names of people associated with it
Property Data API – Search by residential address to return the current owner, residents, and occupancy status

You can also combine inputs across endpoints for more comprehensive data or to further validate matches.

Can I connect people to property data?

Yes. The Property Data API returns current owners, residents, and occupancy status for a given residential address. It supports use cases across proptech, insurance, and home services by enriching address records with contact and property information.

Does Whitepages Pro have an MCP server?

Yes. Our MCP server lets you connect Whitepages Pro directly to Claude, Cursor, and other MCP-compatible tools, so you can enrich, look up, and verify contact and property data inside the workflows you already use. Setup instructions are in the documentation.

Where can I find the official Whitepages Pro API documentation?

The full API documentation, including developer guides, get started instructions, endpoint overviews, request and response formats, and sample queries, is available at api.whitepages.com/docs.

How is Whitepages Pro priced? Is there a free trial?

You can start a free API trial or purchase a monthly plan directly from the pricing page with no sales call required. Plans are tiered by volume, and you can upgrade or change plans at any time.

How is Whitepages Pro different from other data enrichment APIs?

First, Whitepages has been resolving identity at scale for 28 years and is the original team behind Ekata (enterprise fraud prevention, acquired by Mastercard) and Hiya (call protection, used by 450M+ users). That depth of experience is now available in the Whitepages Pro API. Second, our Identity Graph is informed by consumer search signals from Whitepages.com, used by tens of millions of individuals and businesses monthly.

What are the alternatives to Whitepages Pro?

Other APIs in this category return contact and identity data, but few are built on a dataset with the same depth, recency, and resolution logic. Whitepages Pro has been resolving identity at scale for 28 years and is informed by tens of millions of monthly consumer searches on Whitepages.com. The result is broader coverage, more accurate matches, and fresher records than typical contact data APIs deliver. Plus, the implementation is designed to enable businesses of all sizes to get up and running quickly, whether using agents, the MCP server, or traditional API calls.

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Your contact data, working harder.

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