--- title: "WhoLayer vs Wunderkind (2026): pricing, features, and where each is stronger" description: "A sourced, dated comparison of WhoLayer and Wunderkind: person-level ID, ecommerce, API, MCP, and pricing, plus where Wunderkind is the better pick." url: https://wholayer.com/compare/wunderkind --- Compare · Ecommerce shopper identification # WhoLayer vs Wunderkind Wunderkind in one line: Enterprise retail marketing platform: an identity network plus triggered email, SMS, and ads. WhoLayer identifies website visitors (person-level for US traffic, company-level free) and offers contact data through an API and MCP server, all from one credit wallet, starting with a free plan with 100 credits a month. Pick Wunderkind if you need A large identity network for enterprise retail. Checked November 4, 2026. Every Wunderkind figure links to its source. ## Side by side WhoLayer compared with Wunderkind |   | Wunderkind | WhoLayer | | --- | --- | --- | | Positioning | Enterprise retail marketing platform: an identity network plus triggered email, SMS, and ads. [\[1\], November 4, 2026](https://wholayer.com/compare/wunderkind#source-1) | Website visitor identification, ecommerce shopper ID, and contact data for teams and AI agents. | | Person-level visitor ID | Yes, through its identity network [\[2\], November 4, 2026](https://wholayer.com/compare/wunderkind#source-2) | Yes, US traffic only (1 credit per person, charged once a month); company-level worldwide (free) | | Ecommerce | Yes, including a Klaviyo Marketplace app [\[3\], November 4, 2026](https://wholayer.com/compare/wunderkind#source-3) | Yes: Shopper ID sends identified US shoppers to Klaviyo, Customer.io, Mailchimp, Omnisend, Iterable, Braze, ActiveCampaign, or Brevo, with Returning Shopper events for existing Attentive and Postscript subscribers (2 credits per new shopper, 1 credit for shoppers already on your list where the platform can be checked), Growth plan and up | | API | Developer offerings listed [\[1\], November 4, 2026](https://wholayer.com/compare/wunderkind#source-1) | Yes: REST API with an OpenAPI 3.1 spec | | MCP server | Yes: live shopper context for AI agents [\[4\], November 4, 2026](https://wholayer.com/compare/wunderkind#source-4) | Yes: a data MCP server with 13 tools, plus a public docs MCP server with 5 | | Pricing model | Sales-led contracts; advertises a guaranteed revenue lift [\[1\], November 4, 2026](https://wholayer.com/compare/wunderkind#source-1) | Monthly or annual plans with credits from one wallet for every product; overage between $0.045 and $0.060 a credit on paid plans | | Entry price | Not public [\[1\], November 4, 2026](https://wholayer.com/compare/wunderkind#source-1) | Free plan with 100 credits a month; paid plans from $49 a month | WhoLayer's column is generated from our live pricing and API limits. See [pricing](https://wholayer.com/pricing) and the [MCP docs](https://wholayer.com/docs/mcp). ## Where Wunderkind is stronger An honest list. If one of these is what you need, it may be the better pick. - A large identity network for enterprise retail - Managed, self-serve, or hybrid service - Triggered email and SMS, plus programmatic ads - SOC 2 Type 2 and ISO 27001 (vendor-stated) ## Where WhoLayer is different ### Shopper ID for Klaviyo and other email platforms Each identified US shopper arrives in Klaviyo, Customer.io, Mailchimp, Omnisend, Iterable, Braze, ActiveCampaign, or Brevo as a contact plus a "WhoLayer Shopper Identified" event you can trigger flows from. Charged once per new shopper; shoppers already on your list cost half and are never duplicated, and bounces and spam complaints within 30 days are refunded on platforms that report them. ### One wallet, published per-result prices Visitor ID, Shopper ID, the Data API, and the MCP server draw from the same credits, and every credit cost is listed on the pricing page. Misses aren't charged. ### Opt-outs honored everywhere Opted-out and suppressed people are never returned, delivered, or charged. Global Privacy Control signals are honored, and the rules we enforce are published as a machine-readable policy. ### Monthly plans, spend caps Monthly plans stop at the end of the billing period, and you can set a hard monthly spend cap so overage never surprises you. ### WhoLayer isn't the right fit if - Your store's email platform isn't one we support yet (Klaviyo, Customer.io, Mailchimp, Omnisend, Iterable, Braze, ActiveCampaign, or Brevo). Others need a signed webhook and your own integration, and some guarantees, like the holdout report, depend on what your platform's API allows. - You need person-level identification of visitors outside the US. WhoLayer identifies people for US traffic only; elsewhere it's company-level, after consent. - You want a full ABM advertising suite, an on-site AI chat agent, or a built-in sequencer and dialer. WhoLayer identifies and enriches; it doesn't run ads, chat, or send email for you. ## Pricing Wunderkind's published entry price, next to WhoLayer's plans. Wunderkind Not public [\[1\], November 4, 2026](https://wholayer.com/compare/wunderkind#source-1) Sales-led contracts; advertises a guaranteed revenue lift [\[1\], November 4, 2026](https://wholayer.com/compare/wunderkind#source-1) WhoLayer WhoLayer plans | Plan | Monthly | Credits | Overage | | --- | --- | --- | --- | | Free | Free | 100 | None | | Starter | $49 | 1,000 | $0.060 a credit | | Growth | $199 | 5,000 | $0.050 a credit | | Scale | $799 | 20,000 | $0.045 a credit | Example: identifying 1,000 US people a month uses 1,000 credits. The cheapest fit is Starter at $49 a month. Repeat visits by the same person in a month are free, and company-level ID doesn't use credits. [Price your own volume](https://wholayer.com/calculator) ## Questions ### Is WhoLayer cheaper than Wunderkind? It depends on what you need and how much. Wunderkind's entry price is: Not public (as of November 4, 2026). WhoLayer: Free plan with 100 credits a month; paid plans from $49 a month. Use the WhoLayer cost calculator to price your own volume. ### Does WhoLayer identify people outside the US? No. Person-level identification is US-only. Outside the US, WhoLayer identifies the company, and only after the visitor's consent is recorded. ### Do Wunderkind and WhoLayer have MCP servers? Wunderkind: Yes: live shopper context for AI agents. WhoLayer: Yes: a data MCP server with 13 tools, plus a public docs MCP server with 5. ### When is Wunderkind the better choice? When you need A large identity network for enterprise retail, or managed, self-serve, or hybrid service. ## Sources - \[1\] [wunderkind.co](https://www.wunderkind.co/) (vendor's own page, checked November 4, 2026) - \[2\] [Wunderkind identity](https://www.wunderkind.co/platform/identity) (vendor's own page, checked November 4, 2026) - \[3\] [Wunderkind for Klaviyo](https://www.wunderkind.co/klaviyo) (vendor's own page, checked November 4, 2026) - \[4\] [Wunderkind: live shopper context for AI agents](https://www.wunderkind.co/live-shopper-context-for-ai-agents) (vendor's own page, checked November 4, 2026) Competitor information is from public sources as of November 4, 2026 and may have changed. Trademarks belong to their owners. WhoLayer wrote this page; if something here is wrong, [tell us](https://wholayer.com/contact?topic=sales) and we'll fix it. 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