Hertwill has a public API

We’ve built something we’re genuinely excited about. Hertwill now has a public API. You can search thousands of exclusive high quality products from real European and US brands and sync them to your Shopify or WooCommerce store without touching the browser.

If you are a developer, a power user, or using AI tools to help run your store, you can now interact with Hertwill programmatically instead of clicking around in the web interface.

And yes, this is still Hertwill, so products come with fulfillment and shipping handled too. The API is built for store owners, developers, and AI tools that want to automate product sourcing and store setup. The docs are live at hertwill.com/docs.

What you can do with the API

Discover products from your own tools

You can search Hertwill’s catalog of thousands of products using natural language.

Search for something like “eco friendly kids toys” and get relevant results even if those exact words do not appear in the product title. You can also filter by brand, category, price range, and more.

In plain English, the search is smart enough to understand what you mean, not just what you type.

Build your store without the browser

The API lets you handle the core Hertwill workflow directly through API calls:

• search products
• add products to your import list
• sync products to your Shopify or WooCommerce store
• check sync status

This is useful for bulk actions, custom tooling, and automation. Also useful if clicking through screens all day is your idea of a bad time.

Full self service onboarding

You can register, log in, and create your API key entirely from the terminal.

No browser required.

Interactive documentation

We have also published interactive API docs at https://hertwill.com/docs where you can explore endpoints, see examples, and test requests directly in the browser.

Who this is for

The Hertwill public API is built for:

• store owners who want to automate product sourcing
• developers building custom integrations on top of Hertwill
• AI agents and LLM based workflows that can now browse products, manage import lists, and sync products to stores on your behalf

If your workflow involves scripts, internal tools, or AI assistants, this API should make Hertwill much easier to plug into.

Quick start

Getting started is simple:

1. Create an account → POST /v1/auth/register
2. Log in → POST /v1/auth/login
3. Create an API key → POST /v1/api-keys
4. Search products → GET /v1/products/search?q=leather+bags
5. Add a product to your import list → POST /v1/import-list/products
6. Sync products to your store → POST /v1/sync/products

That is it. Six steps from zero to products in your store.

What is under the hood

We are starting with the core Hertwill workflow first: discover, import, and sync.

Here are some of the things powering it:

• smart search based on semantic AI embeddings, so results are based on meaning and not just keyword matching
• store scoped API keys, where each key is tied to one store and can be revoked anytime
• rate limits to keep things fair, with 60 requests per minute for public endpoints and 300 requests per minute for authenticated endpoints
• clear error messages that explain what went wrong and how to fix it
• a full OpenAPI specification, so you can generate typed clients in your preferred language

This is just the start. Right now, the public API covers the core workflow most merchants and developers need first.

We will expand it from here based on feedback and real use cases. So if you build something with it, or hit a wall, let us know at roland@hertwill.com. That will directly shape what comes next.

Try it out.

You can explore the docs and start building here: https://hertwill.com/docs

If you have ever wanted to search Hertwill products, manage your import list, and sync products to your store without touching the browser, now you can.

And frankly, it is about time.