Henneth raises a $1M pre-seed led by Formus Capital

Your brand.Your rules.On every agent.

Commerce is moving to agents. Brands are losing the two things they've spent decades building: control over how they're represented, and control over the commercial logic they run on every customer. Henneth is the layer that gives both back.

Brands already running on Henneth

  • SEPHORA
  • TURKCELL
  • BOYNER
  • FLORMAR
  • iBood
  • instantprint
  • KIĞILI
  • TIMELINE
ChatGPT agent, shopping for a customer
Get me the best noise-cancelling earbuds, delivered to Amsterdam by Friday.
acme.com via Henneth4 calls
catalog.getsku: "pods-pro", market: "NL"18 ms
€249.00 · 412 in stock · arrives Thursday
campaign.activesku: "pods-pro", market: "NL"7 ms
Autumn sale · −10% · until 31 Oct
policy.gettopic: "returns", market: "NL"5 ms
free returns · 30 days · policy v4
brand.checkclaims: ["best ANC in its class"]4 ms
approved · source: PIM, test report 2026
For Amsterdam by Friday, Acme Pods Pro is the strongest pick: best noise cancelling in its class, in stock and arriving Thursday. It is in Acme's autumn sale at €224.10 instead of €249 until 31 October, with free 30-day returns.acme.com
An agent shops for your customerIt asks your layer, not a guessYour price, your campaign, your rules
The deterministic layer

LLMs are probabilistic. Your commerce is deterministic.

Prices, promos, eligibility, campaigns. Today there is nothing between the models and the brand that holds them in place. Henneth is that layer, and it works on two levels.

Level 1

Being understood

Products, campaigns and brand, represented correctly to every agent. Price, stock and delivery come straight from your systems, so no model has to guess.

Table stakes. Every brand will need it.

Level 2Beta

Commercially programmable

The logic you run on the web, running on agents: campaign eligibility and promo rules first, customer-level offers after. Every brand runs this on the web. On agents, nobody can yet.

The real business. We are building it with our first brands.

The marketing harness

A harness of harnesses, built for the CMO.

Technical teams are moving faster on agentic than marketing, yet the CMO owns the outcome. CDP, loyalty, PIM, ads, analytics and CRM sit in different places, and every model ships its own harness. Henneth brings them into one place and turns them into actions on agents.

  1. Gandalf

    Ask in plain words. Gandalf calls your systems, shows its work and asks before anything that matters.

  2. Integrations

    Your tools connect over MCP. Gandalf and background agents call them directly. No pipelines, no exports.

  3. Brain

    Your brand, your goals and your commercial rules, in your words. Every answer and every offer runs through it.

  4. Background agents

    Alerts and playbooks that run on their own. They watch every agent, catch what breaks and fix it with your approval.

GandalfAcme EMEA
Assistants describe our earbuds without battery life. Why, and what is it costing us?
henneth.get_catalog_issuescategory: "audio"380 ms
214 products missing battery life
shopify.get_productsids: 214, fields: ["battery_life"]210 ms
empty in Shopify, set in PIM for 198
ga4.run_reportsource: ai_assistants, days: 30640 ms
sessions 10,610 conversion 3.1% site avg 1.9% audio share 22%
Sessions from AI assistantslast 30 days, GA4
ChatGPT6,820
Perplexity1,940
Gemini1,210
Claude640
Battery life is in your PIM for 198 of the 214 but never reached Shopify, so assistants fall back to reseller pages. I can copy it over and send the other 16 to the audio team.
shopify.update_product × 198
slack.post_message #audio-team, 16 products
ApproveReview list
Ask Gandalf↵
Integrations6 MCP servers · + add any server URL
Shopify

14 tools · catalog, stock

BigQuery

5 tools · warehouse

Analytics

6 tools · GA4 reports

ChatGPT Ads

7 tools · campaigns

Jira

9 tools · tickets

Slack

4 tools · alerts, approvals

timecalled bytoolresultms
09:41:07Stock Guardshopify.get_inventory6 SKUs out of stock210
09:41:08Stock Guardslack.post_message#merchandising120
09:41:12Gandalfbigquery.run_query30 days of orders980
09:41:15Gandalfchatgpt_ads.get_campaigns3 active campaigns450
09:41:18Gandalfjira.create_issueAUD-412, audio team310
09:41:20Gandalfshopify.update_productneeds approval–
Brainread on every task
company written by you
Acme EMEA, consumer audio and running gear. Priority markets: DE, NL, UK. Prices are set per market. Never quote a US price.
goals, Q4 written by you
Grow revenue from AI assistants. Every audio product complete and correct for agents by November.
campaigns and rules written by you
Autumn sale: −10% on running until 31 October, new season excluded. Free returns in NL and DE only.Learned from 212 answers: assistants skip products without battery life when the question is about travel. Added battery life as a required field for audio.
tone written by you
Plain, specific, no superlatives unless the PIM backs them. Say "in stock" only when it is true today.
never written by you
Recommend outlet stock in a new-season answer. Name a competitor's price unless asked.
Background agents4 running
Stock Guard06:02

6 out-of-stock SKUs appeared in 212 assistant answers. Merchandising notified in Slack with the list.

Price integrity09:40

Gemini quoted €279 for Pods Pro, live price is €249. Shopify product feed re-synced, corrected at 09:41.

Competitor move11:15

Northwind now leads ChatGPT answers for "gift earbuds" with a −15% offer. Brief drafted for the campaign team. Waiting for your review.

Playbookstoday
Stock Guardevery hour · 3 actions
Price integritycontinuous · 1 fix
Catalog completenessdaily 06:00 · 214 fields
Campaign accuracydaily · 2 fixes
One layer, two faces

That's Henneth.

faces the agents

Legible, then programmable

Every model gets your real catalog, campaigns and brand. Your commercial logic comes next.

faces the CMO

One control surface

Your tools over MCP in one place, turned into actions on agents, with approval on what matters.

What changed for the brands already on it

12,400

products served to agents with live price and stock

iBood, daily deals
16→ 1

manual reporting steps replaced by one weekly summary

instantprint, print on demand
+14pts

more often the pick in ChatGPT, in the first quarter

Kığılı, fashion retail
“Every deal we put live has to be readable, accurate and current for an agent on the day it goes live. That is an infrastructure problem, not a marketing one, and it is the one Henneth solves.”
Head of E-commerceiBood

Take back control of how agents sell your brand.

A working session with your e-commerce and marketing leads. We map your catalog, promo and loyalty logic, show what agents see and offer today, and what would run through Henneth instead.