Have an AI agent built: cost, process and when not to
Having an AI agent built is mostly integration work: the more systems it touches, the more it costs. We build it in fixed steps, and you own it.
An AI agent does a job end to end: reads the email, extracts the order, checks it against your ERP, drafts the reply. This page covers what that costs in the Dutch market, what runs monthly afterwards, and the cases where you should not commission one at all.
Last updated: 5 August 2026
In the Dutch market a custom AI agent runs roughly €1,500 to €25,000 one-off, depending on how many systems it touches: a simple FAQ or intake agent starts around €1,500, an agent integrating CRM, email and a database runs €5,000–€15,000, and multi-agent systems start around €15,000. Budget €100–€2,000 per month afterwards, of which the raw running cost (API tokens, hosting, vector database) is typically only €22–€145; the rest is maintenance. Crux Digits works in fixed steps: a €2,500 audit, a €20,000 Production-ready MVP on your own data, production from €50,000.
From question to invoice
What you are actually commissioning
An agent acts rather than answers. That difference sets the price, the timeline and whether it pays at all.
Acting, not answering
A chatbot answers. An agent takes a task, uses your systems as tools and produces a result.
What are you asking for?
Agent, chatbot or custom software. The words blur together, and they price very differently.
What it costs
From a simple intake to an agent touching three systems: integration sets the price, not the model.
The monthly figure
Tokens and hosting are usually the smallest part. Maintenance is the rest, and it keeps running.
Four cases
Sometimes the answer is not to build one. We say so before the quote, not after.
What an AI agent actually is (and is not)
A chatbot answers. An agent acts: it takes a task, uses your systems as tools, and produces a result a person would otherwise have produced by hand. The practical difference is that an agent needs access to your data and permission to do things, which is why agent projects are integration projects wearing an AI hat.
Three shapes cover most Dutch SME requests:
- Intake agents: an order, quote request or invoice arrives as email or PDF in any layout; the agent extracts it, validates it and puts structured data in your system.
- Answer agents: a customer or colleague asks something; the agent answers from your own documents rather than from the open internet, with a source it can show.
- Follow-up agents: the agent watches for something that should have happened and did not, then drafts the chase. Unglamorous and frequently the highest payback.
Chatbot, AI agent or AI software: what are you actually asking for?
These terms get used interchangeably and mean very different things in a quote. Knowing which one you want is worth an order of magnitude in price.
| You ask for | What you usually mean | What it realistically costs |
|---|---|---|
| A chatbot built | A window on your site answering questions from your own text | From ~€1,500; existing software often already does it |
| An AI agent built | Something that performs a task in your systems, not just answers | ~€5,000–€15,000 once integrations are involved |
| AI software built | An application where AI is one component, not the whole thing | Custom development; from ~€20,000 |
| An AI solution built | Usually not yet specific: this is an audit question, not a build question | Start with a €2,500 audit, not a build quote |
Which task do you want off your desk?
An agent is priced by the systems it touches, so start from the task and the system it lives in. Five tasks we are asked about most:
- Order intake from email into the ERP (Exact Online, AFAS Profit, SAP Business One): read the order, check article and customer, draft the sales order for approval.
- Purchase invoice matching: match the invoice to the purchase order and goods receipt in AFAS or Exact, and queue the exceptions.
- Stock and backorder questions from the WMS: answer a customer or sales colleague from live stock and expected receipts.
- Ticket triage in TOPdesk or Zendesk: classify, route and draft a first reply from the knowledge base.
- Work orders back into the ERP: turn a technician's work order (werkbon) into hours, materials and an invoice line.
Where each one lands in the range below depends on how many systems it has to read from and write to.
What it costs to have an AI agent built
Two figures matter and most suppliers only quote the first. Market ranges below are published Dutch 2026 figures gathered on 5 August 2026, excluding VAT; treat them as orientation, not as our quote.
| Agent type | One-off (market range) | Monthly (market range) |
|---|---|---|
| Simple FAQ or intake agent, one system | from ~€1,500 | ~€100–€400 |
| Multi-integration agent (CRM + mail + database) | ~€5,000–€15,000 | ~€300–€1,200 |
| Multi-agent system / company-wide | from ~€15,000 | ~€800–€2,000 |
| Crux Digits fixed steps | Audit €2,500 · Production-ready MVP €20,000 · Production from €50,000 | Managed support €500/month (up to 50 clients) |
The monthly number, broken down honestly
This is the part almost nobody publishes, and it is where quotes get misleading. For a typical Dutch SME agent, the actual running cost (API tokens, hosting, vector database) is usually only €22–€145 per month.
So when a monthly fee is €600, roughly €500 of that is not infrastructure. It is maintenance, monitoring and support, which is a legitimate thing to pay for: an agent that nobody watches degrades quietly as your documents, suppliers and edge cases change. But you are entitled to see the split. Ask any supplier: "what is infrastructure and what is your fee?" A supplier who will not break that out is charging you a margin they do not want to name.
What it returns, with the assumption stated
Published Dutch market figures put savings at 8–15 hours per employee per month on automated tasks, with payback typically inside 2–4 months for a well-chosen first agent.
The honest caveat: those numbers assume you picked a task that is genuinely high-volume and rule-based. The same build against a task performed twice a week pays back never. Before commissioning anything, count how many times a week the task actually happens and how long it actually takes, if that number is small, no agent will fix it, and any supplier who does not ask you for it is not scoping, they are selling.
Four cases where you should not have one built
Written against our own interest, because a failed first project poisons AI internally for years.
- An off-the-shelf tool already does it. If your helpdesk software ships an AI reply feature, use it for a quarter before commissioning a bespoke one.
- The process is not written down anywhere. You cannot automate a process that lives in one person's head. You will pay to discover it, then pay again to build it.
- The underlying data is a mess. An agent on unreliable data produces confident wrong answers faster than a human produces uncertain right ones.
- Nobody owns it internally. Agents need a person who notices when output drifts. No owner, no project.
How we build one
Three fixed steps, each priced before it starts, and you keep what each one delivers.
| Step | What happens | Price |
|---|---|---|
| 1. AI audit & strategy | We map the candidate processes, count real volume and time, and rank by payback. Ends in a written recommendation, including "do not build this" where that is the answer. | €2,500 |
| 2. Production-ready MVP | A working agent on your data, not a demo dataset. You see it succeed and fail on real cases before committing to production. | €20,000 |
| 3. Production | Integration, guardrails, error handling, monitoring and handover. Code and hosting are yours. | from €50,000 |
What to ask any supplier before signing
Ask us these too:
- "What is the monthly infrastructure cost versus your fee?". See above; the split should be stated.
- "Who owns the code and can we host it ourselves?". Get it in writing before, not after.
- "What happens when the agent is unsure?". The right answer is a human review queue, not a confident guess.
- "Show me one you built that still runs a year later.". Surviving production is the only real credential.
- "What would make you tell us not to build this?". No answer means no scoping.
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Frequently asked questions
What does it cost to have an AI agent built?
What are the monthly running costs of an AI agent?
How long does it take to build an AI agent?
What is the difference between an AI agent and a chatbot?
How much time does an AI agent save?
Do we own the agent you build?
Want to know if your process is worth automating?
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