Person-level identity · resolved in real time
WhoLayer tells you who's on your website, gives you a verified way to reach them, and sends them to the tools you already use. One tag, one API, and one credit wallet.
100 free credits a month · no card required · US person-level only
Move the lens
Most visitors leave without a name. Point the lens at them. These are fictional people; on your site, it's your traffic.
The same graph powers sales alerts, ecommerce flows, agent workflows, and enterprise data feeds, so you buy it once and use it everywhere.
CH-01 · B2B sales and marketing
Visitor IDToday
A VP of Revenue reads your pricing page twice and leaves without filling in the form.
With WhoLayer
Her name, title, LinkedIn, and verified work email land in Slack and HubSpot within a minute, tagged as a hot lead.
CH-02 · Ecommerce brands
Shopper IDToday
A returning shopper adds a $148 shirt to the cart and closes the tab. You've never had their email.
With WhoLayer
A verified email drops into your Klaviyo abandoned-cart flow, or anywhere else through a signed webhook.
CH-03 · Developers, data teams, and AI agents
Data API and MCPToday
Your agent has a list of 2,000 names and companies and no way to reach them.
With WhoLayer
One MCP call returns verified emails, carrier-checked mobiles, and company data, within a spend cap you set.
CH-04 · Retailers, publishers, ad tech, and platforms
Identity CloudToday
Most of your audience is anonymous, so your CDP, bidstream, and attribution run on guesses.
With WhoLayer
Person-level resolution, hashed emails, MAIDs, and hundreds of attributes, delivered by API or flat file.
How resolution works
anonymous_visitor · /pricing · Austin, TX · 2nd visit
Dana Okafor
VP Revenue · Fieldline · 210 staff
Illustration with a fictional person.
Slack · #hot-leads
Dana Okafor (VP Revenue, Fieldline) viewed /pricing twice. Work email verified.
HubSpot · contact upserted
email=dana@fieldline.io · lifecycle=lead · source=WhoLayer
MCP · enrich_person
{ "name": "Dana Okafor", "email": "dana@fieldline.io",
"risk": "A", "credits_used": 1 }Paste one script into your site header, or into your Shopify theme. Setup takes about five minutes.
Each visit is matched against our consent-aware identity network, checked against our suppression list, and enriched.
Route people by page, title, or company size to Slack, HubSpot, Klaviyo, a signed webhook, or your AI agent.
One credit buys one identified person or one verified email, across every product. Company-level visitor ID is free and unlimited. If we don't find someone, you don't pay.
Compare plansLive sandbox · no key needed
This is the real request shape for POST /v1/people/enrich, answered by our sandbox. Every result is fictional, nothing is stored, and it costs nothing.
curl https://api.wholayer.com/v1/people/enrich \
-H "Authorization: Bearer wl_test_..." \
-H "Content-Type: application/json" \
-d '{"name":"Avery Sample","company_domain":"samplefieldworks.example.com","reveal":["work_email","mobile"]}'// Press Run request. Results are fictional sandbox data on example.com, and nothing is stored or charged.
Identity data only works long-term if the people in it are treated fairly. These are the rules we run on.
Every lookup checks our suppression list. Anyone can opt out in two minutes on our privacy page, and we process California's deletion platform every 45 days.
Our data comes from consent-aware publisher networks and licensed partners, not from scraping profiles.
We'll publish measured match and accuracy rates every quarter, against a holdout set of known visitors.
Person-level ID runs on US traffic only. Outside the US we identify companies, and only after your consent banner records consent.
Ready when you are
Install one tag. Your first 100 identified people are free, no card needed.