Tool profile
Clerk.io: cost, fit and limits
Clerk.io is a commerce personalization service made by Clerk.io, Inc. that sells search, product recommendations, chat and email modules to webshops, with each module billed on its own monthly usage tier rather than a flat plan.
What to know first
Clerk.io is modular: a shop buys one to five of Search, Recommendations, Chat and Email and pays per usage tier, such as 100,000 to 10,000,000 monthly recommendations. The pricing page does not show tier prices, so a quote is needed. There is no one-off implementation fee, but extra work costs EUR 99 per hour. Chat and email content is sent to OpenAI.
Clerk.io at a glance
| Maker | Clerk.io, Denmark |
|---|---|
| Free plan | Free trial only |
| Entry price | Quote only |
| API access | No |
| Category | Best AI Product Recommendation Engines in 2026, rank 3 of 10 |
| Website | clerk.io |
Who Clerk.io is best for
Shops that mail product picks
The Email module chooses products automatically for campaigns, so the same engine feeds both onsite suggestions and the inbox, which saves a separate email personalization tool.
Multi-platform merchants
Named connectors cover Shopify, WooCommerce, Magento, BigCommerce, Shopware, PrestaShop, Lightspeed and VTEX, and an open API serves custom builds that fit none of them.
Teams that want modular buying
Starting with Recommendations alone and adding Search or Chat later keeps the first bill tied to one module, with usage tiers that can be adjusted as traffic grows.
Clerk.io plans and pricing
| Plan | Price | What it includes |
|---|---|---|
| Search | Not shown (10,000 to 2,500,000 monthly searches) | Search module billed by usage tier; the page also offers a No Search option and a quote option. |
| Recommendations | Not shown (100,000 to 10,000,000 monthly recommendations) | Recommendation module billed by usage tier, with usage measured on a three-month average rather than on a single month. |
| Chat | Not shown (100 to 25,000 monthly conversations) | Chat module that gives product-aware answers on the shop, billed by conversation tier; the pages show no price for any tier. |
| Not shown (10,000 to 2,500,000 monthly opened emails) | Email module that sends personalized product emails with products chosen automatically, billed by the number of opened emails each month. | |
| Enterprise and B2B | Custom quote | Custom service levels and terms for large or business-to-business shops, requested through a demo instead of the pricing page. |
Checked October 2026.
What Clerk.io does
- Basket-aware recommendations
- Suggestions cover complements, alternatives and next products and use the shopper's current basket as context, so a cart with a camera can be offered cards and bags instead of more cameras.
- Audience segments
- Segments built from behavior and purchase intent can be activated in the Email module and in Meta and Google Ads, which lets one audience definition drive several channels at once.
- Personalized email
- The Email module sends personalized product emails where the products are picked automatically for each recipient, with connectors named for Klaviyo, Mailchimp, Brevo and ActiveCampaign.
- Chat
- A chatbot the homepage calls generative and predictive gives product-aware answers on the shop, billed by conversations per month from 100 up to 25,000 in the listed tiers.
- Module combination
- One to five modules can be combined, so search, suggestions, chat and email can share the same shopper data instead of living in separate tools with separate integrations.
How Clerk.io handles your data
Clerk.io's privacy policy says data is kept as long as needed for the contract purpose or while marketing emails are wanted; after consent is withdrawn, the name, email and consent record are kept for two years. Chat transcripts and email content are sent to OpenAI, L.L.C. solely to provide the requested AI functions; training is not mentioned either way. Hosting is by third-party providers that are not named, and no region is stated. The footer links ISO 27001 and SOC 2 pages that were not opened, so no certification is confirmed here.
Where Clerk.io falls short in practice
- Tier prices are hidden. The pricing calculator shows placeholder values, so a budget needs a sales conversation. Plans are also billed per module, which multiplies the number of quotes.
- Three-month averaging. Usage is measured on a three-month average, and overage can raise the tier or be invoiced under the Terms of Service, which makes seasonal peaks costly.
- Paid extra work. Work outside the standard packages is billed at EUR 99 per hour as a Clerk.io Workday, so custom front-end changes or unusual integrations add to the invoice on top of module tiers.
Works with
Alternatives to Clerk.io
Clerk.io: common questions
Does Clerk.io publish its prices?
Not tier by tier. The pricing page lists usage tiers for each module, for example 100,000 to 10,000,000 monthly recommendations, but the calculator shows placeholder EUR 0. Currencies offered are GBP, DKK, EUR and USD, and extra work is EUR 99 per hour.
Is there a free trial for Clerk.io?
A Free trial button links to sign-up, but the pages read give no trial length or terms, and no free plan is listed anywhere. Ask sales how long the trial runs, which modules it includes and whether it needs payment details.
How does Clerk.io measure usage?
Usage is measured on a three-month average. Adjustments take effect the following month, and overage can raise your tier or be invoiced under section F of the Terms of Service. A seasonal shop should ask how peaks are treated. Ask for it in writing.
Does Clerk.io send my data to OpenAI?
The privacy policy says chat transcripts and email content go to OpenAI, L.L.C. solely to provide the requested AI functions. It does not mention model training either way, so ask for written confirmation if your policy bans third-party model use.
Can Clerk.io recommend products in email?
Yes. The Email module sends personalized product emails in which the products are chosen automatically, and it is billed by opened emails. Connectors to Klaviyo, Mailchimp, Brevo and ActiveCampaign are named for teams that prefer to keep their own sender.