Cookies on AIGROW

We use necessary cookies to run the site. With your permission, we also use cookies for analytics, session recordings and marketing attribution.

Cookie Policy

Custom AI agent development: one agent that does one whole job in your own tools, built at a fixed price from a written specification and accepted on your real data

$3,900Fixed price, paid onceSpecification within 5 working days, the agent about 3 weeks after you approve it

Order for $3,900How it works

Approve the written specification or get a full refund before any build starts. Not delivered as listed, refunded in full.

What the film says
  1. 2 a.m. A customer writes to you and to your competitor.
  2. Their AI agent has already answered. The booking is theirs.
  3. Now your agent answers first.
  4. Handled by AI agentsSupport inbox, Lead follow-up, Bookings and reminders and Invoices and collections
  5. 7 business functions AI agents can run, with a person on every exception. Anything your rules do not cover waits for a person.
  6. AI OperationsA whole business function run by AI agents in the cloud. from $990/mo. Start today.

AIGROW builds one AI agent for one whole job, such as triaging requests, updating your CRM, answering customers or processing orders, for $3,900 paid once. You approve a written specification with its acceptance tests before we build. The agent runs in your own accounts, passes those tests on your real data, and you keep the code and prompts.

What the agent does, and what it does not

Some jobs take more than one step: reading a request, working out what it is, looking up the customer, updating a record and replying. One agent can do that whole job once the job is written down and checked against tests you agree.

What it does
  • Writes a specification of the job within 5 working days of payment: what starts it, its inputs, the tools it touches, what it must never do and the acceptance tests
  • Does one whole job from start to finish, such as triaging incoming requests, updating your CRM or management software, answering customers or processing orders
  • Runs in your own accounts: the model on your provider account or on AIGROW API credit, the steps on your n8n, Make or Zapier, or as code you own
  • Asks a person to approve any action that sends money or deletes data
  • Passes the acceptance tests in the specification on your real data before it goes live
  • Hands over the code, the prompts, the test log and notes on how to pause it and what to do when a run fails
  • Includes 30 days of fixes after go-live
What it does not do
  • It does not do more than one job: a larger scope is split into more agents, each priced separately
  • It does not promise hours saved or revenue. It does the job the specification describes
  • It does not pay for model usage or your platform plans, which are billed on your account, or as AIGROW API credit, on top of our price
  • It does not start building before you approve the specification, and until then you can ask for a full refund
  • It does not need a password: you invite team@aigrow.gg as a user of each tool, or give us a key limited to what the job needs

From payment to an agent that passed its tests

Each step and when it happens. Nothing is built until you approve the specification, and you can ask for a full refund until then.

Pay at checkoutPay by card at the Stripe checkout. Stripe sends the receipt.2 minutes
Describe the jobWe email you straight after payment. Reply with the job, the tools, a few real examples and the rules a person must keep.About 30 minutes
Approve the specificationWe send the written specification: the job, its inputs, the tools it touches, what it must never do and the acceptance tests. Approve it, ask for changes, or ask for a full refund.Within 5 working daysOf payment, not counting time waiting for your answers
We build the agentWe build it in your own accounts once you invite us to each tool. Every action that sends money or deletes data waits for a person.About 3 weeksFrom your approval
Acceptance on your real dataThe agent runs the acceptance tests from the specification on your real data. It goes live when it passes every one and you say so.Before go-live
Handover and fixesWe hand over the code, the prompts, the test log and the notes, and fix anything that breaks or does not do what the specification says.30 daysAfter go-live

One agent, one job, one price

Paid once at checkout, which asks for your email and card. Right after payment we email you questions about the job. The written specification comes within 5 working days, and the build starts only when you approve it. Model usage and platform plans are billed on top, on your account.

What we need from you

Reply to our email with the job in your own words: what starts it, what a person does today step by step, the tools they open, how often it happens and what must never happen without a person. Add a few real examples, such as requests or orders, and name the model provider and automation platform you already pay for, if any.

What you receive

  • A written specification: the job, its inputs, the tools it touches, what it must never do and the acceptance tests
  • One agent that does that job, built in your own accounts
  • A person's approval on any action that sends money or deletes data
  • The acceptance tests run on your real data, with the test log
  • The code and prompts, with notes on how to pause the agent and what to do when a run fails
  • 30 days of fixes after go-live

Custom AI agent

$3,900

Paid once at checkout. No subscription, nothing renews.

If we do not deliver what this page lists, or you change your mind before work starts, you get a full refund.

Why buy it from AIGROW

What you can check before you pay, and after the work.

A fixed price
$3,900, paid once. No subscription, nothing renews. Everything included is listed on this page before you pay.
Proof you can check
The specification lists the acceptance tests before any build starts, and the agent has to pass each one on your real data before it goes live. The test log, the code and the prompts are handed over to you, so you can run every test again yourself.
A public method
The free LLM API cost calculator prices a workload on every current model at list price. Try it with the requests your agent would handle in a month: model usage is billed on top of our price. Open the LLM API cost calculator

Before you buy

What one job means, the specification, the refund, your accounts, the costs on top and what we do not promise.

One job has one start and one end, such as a request that arrives and ends sorted and answered, or an order that ends entered in your management software. If what you describe is more than one job, the specification says so and splits it into more agents, each priced separately, before anything is built.

The job in plain words, what starts it, the inputs it reads, each tool it touches and what it does there, what it must never do, what waits for a person, and the acceptance tests: real cases with the result each one must give. It also names the access we need and estimates the monthly model usage at the volume you give us.

Ask for changes, which are free until you approve it. If it still does not fit, ask for a full refund before you approve it. Nothing is built until you do.

We fix it and run the tests again before go-live. An agent that cannot pass the tests in the specification has not been delivered as listed, and you get a full refund.

In your own accounts. The model runs on your provider account, such as OpenAI, Anthropic or Google, or on AIGROW API credit, prepaid and sold separately. The steps run on your n8n, Make or Zapier, or as code in a repository you own. The code and prompts are yours either way.

Model usage and your platform plans, billed by the providers on your account, or as AIGROW API credit if you choose it. The specification estimates the monthly usage before you approve it. Our price covers the specification, the build, the acceptance tests, the handover and 30 days of fixes.

No. Any action that sends money, such as a refund or a payment, and any action that deletes data waits for a person to approve it. The specification lists those actions and who approves each one.

No, and we do not accept one. Invite team@aigrow.gg as a user of each tool, or create an API key with only the access the job needs. Remove us after the 30 days of fixes.

The agent reads it in your accounts to do the job, and the acceptance tests run on it. Our Data Processing Addendum at aigrow.gg/dpa covers our access. If your data may only go to providers you already have a contract with, run the model on your own provider account.

The AI Ops scan, at $290, ranks the 5 automations that would take the most hours a week off your team, with our price for each. If its report quotes this agent and you order within 30 days of the report, the scan price is refunded from this payment.

This build is one agent working inside the tools you already use. A software product with its own screens, sign-in and users is the MVP software build, at $9,900 paid once.

We do not promise either. The agent does the job the specification describes and passes its tests, and what that changes depends on your volume and your team.

You run the agent with the handover notes. If it runs on n8n, Make or Zapier, the automation care plan can watch it and fix it every month. Another job is another agent and another order, and smaller automation jobs can go on a board with automation on request, at $2,900 a month.

Is your job a common one?

Twelve common jobs, such as email to CRM or invoice extraction, have a fixed price each on the workflow automations page, built within 5 to 10 working days of an approved plan. When one of them covers your job, it costs less and is live sooner.

See the workflow automations

The service that fits next

$290 a month

Automation care plan

We look after up to 5 automations you already run on Zapier, Make, n8n, Power Automate or Apps Script, fix a broken one within 2 working days and report on all of them every month.

See the automation care plan

Give one whole job to an agent you can test before it goes live.

Order, describe the job and approve the written specification within 5 working days. The agent follows about 3 weeks later, once it passes the acceptance tests on your real data.

Order for $3,900See every done-for-you service

$3,900 · paid once · delivered as listed or refunded