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One platform for Visitor ID, Shopper ID, Data API, and Identity Cloud
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Start free

Products

Every WhoLayer product runs on the same identity graph and draws from the same credit wallet. Start with the one you need and add the others whenever you like, without a new contract.

For B2B sales, marketing, and RevOpsVisitor IDInstall one tag and get the name, title, LinkedIn, and verified work email of US visitors, plus the company for everyone else. Then send hot leads to Slack, HubSpot, or any tool that takes a webhook, automatically.1 credit per identified person per month. Company-level ID is free.For DTC and ecommerce brandsShopper IDShopper ID recognizes anonymous US shoppers on your store and sends verified emails to your Klaviyo flows, so abandoned carts and browse sessions turn into revenue.1 credit per identified shopper per month.For developers, Clay users, and AI agentsData API and MCPVerified work and personal emails, carrier-checked mobiles, people and company search, and reverse email lookup, through a REST API and an MCP server that work with Clay, n8n, Zapier, and any AI agent. No seats, no UI required.1 credit per email found, 5 per mobile, 0.1 per verification. Nothing when there's no result.For retailers, publishers, ad tech, data companies, and platformsIdentity CloudResolve anonymous traffic to people, add hashed emails, mobile ad IDs, and IPs, and layer on 600+ demographic, professional, intent, and behavioral attributes. Delivered by real-time API, flat file, warehouse share, or managed audience.Volume pricing from $0.012 a credit, with annual contracts. Free match test before you sign.

Each layer does one job, and every product uses all of them.

  1. 05Your toolsSlack, CRM, Klaviyo, Meta, Clay, warehouses, and AI agents
  2. 04ProductsVisitor ID, Shopper ID, Data API and MCP, Identity Cloud
  3. 03WalletOne credit balance, one bill, one set of spend caps
  4. 02ComplianceSuppression, opt-outs, DROP deletions, consent, US-only person matching
  5. 01Identity graphConsent-aware publisher signals, licensed partners, verification

Ready when you are

Install one tag. Your first 100 identified people are free, no card needed.

Start freeTalk to sales