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AI Engineering Agent · from $299

Hire an AI agent developer without the freelancer hunt

Describe the task you want an AI agent to take off your plate. Our agent quotes a fixed price in about a minute, then builds one that uses your tools, logs every step and asks before risky actions.

  • Fixed-price proposal in about a minute
  • Pay only if you accept
  • Engineer-reviewed delivery
  • 2 revisions · refund if we can't deliver

Post your AI agent job

0/5000 · more detail = a sharper price

Free to post · no account · you only pay if you accept · from $99

Typical jobs & prices

What clients hire an AI agent developer for

Indicative fixed prices. Your proposal is priced for your exact brief.

Agent that reads inbound email and drafts replies for approval

from $299 ~3 days
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Lead-research agent that enriches a list and writes opening lines

from $399 ~3 days
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Support-triage agent that tags, prioritizes and routes help desk tickets

from $599 ~4 days
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Invoice agent that extracts fields and posts them to accounting software

from $699 ~5 days
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Research agent that compiles a weekly market report from set sources

from $999 ~7 days
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Operations agent with CRM, database and Slack tools plus an eval suite

from $2,499 ~15 days
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Agents that do real work, with guardrails

An AI agent differs from a chatbot in one important way: instead of only answering, it takes actions. It might read incoming invoices and enter them into your accounting system, research a list of leads and draft personalized outreach, triage support tickets and update their status, or watch a competitor's pricing page and file a weekly report. The useful ones are narrow. They do one job end to end and know exactly which tools they may call.

Our agent turns your description into a written plan first: the trigger, the tools your agent may use, the decisions it makes on its own and the ones that need your approval. Then it builds the tool layer — functions that call your CRM, inbox, database or internal API — along with an evaluation set of realistic cases. Anything that sends money, emails a customer or deletes records gets a human approval step by default.

Delivery is code you own, running where you choose: a small server, a serverless function, a scheduled job, or inside a workflow tool like n8n. Every run is logged with its inputs, tool calls and outcome, so you can audit exactly what the agent did yesterday. A GrahAI engineer reviews the plan, the permissions and a batch of test runs before handover, and you pay your chosen model provider directly for usage.

What you receive

  • Written agent spec: trigger, allowed tools, approval rules and stop conditions
  • Agent code with a separate tool layer for each system it touches
  • Evaluation set of realistic cases with pass and fail results
  • Run log recording inputs, tool calls and outcomes for every execution
  • Deployment on infrastructure you control, with two revision rounds

When to hire a person instead

An agent is a poor fit for fully autonomous decisions with legal, medical or large financial consequences, or for processes nobody has written down yet. If your team can't describe what a correct outcome looks like, bring in a consultant to map the process first.

Larger build? See custom projects

How it works

Hire an AI agent developer in four steps

Step 1

Post your job

Describe what you need in plain words. No account, no bidding war, no profile to set up.

Step 2

Get a proposal in about a minute

An AI agent replies with deliverables, a plan, a fixed price and a delivery date. Ask it anything.

Step 3

Accept and pay securely

One fixed price, paid by card through secure checkout. International cards welcome; UPI in India.

Step 4

Receive reviewed work

Agents build it, an engineer reviews it, and it lands in your job room. Two revision rounds included.

Agent vs. hiring an AI agent developer on a marketplace

Typical freelance marketplaceGrahAI agents
Time to first replyHours to days of waiting for bidsAbout a minute
Who you deal withAn individual you vet and manageOne accountable company
PriceVaries by freelancer; fees added at checkoutOne fixed price in the proposal
VettingYou read profiles and interviewNothing to vet — quality is our job
Quality checkDepends on the freelancerEngineer review on every delivery
If it goes wrongDispute processRevisions, then a full refund
Account needed to postYesNo

Weighing your options? Read our Upwork and Fiverr comparisons.

Hire an AI agent developer: common questions

What does it cost to build an AI agent?
Single-purpose agents, like one that drafts email replies for your approval, start around $299. Agents that connect two or three systems and make routine decisions typically cost $599 to $999. Larger operations agents with several tools, an evaluation suite and approval flows run $1,999 to $2,999. Model usage after launch is a running cost you pay your provider directly.
What's the difference between an AI agent and an automation workflow?
A workflow follows fixed rules: when X happens, do Y. An agent handles the steps that need judgment, like reading a messy email and deciding which of five actions applies. Many good builds combine both, with a predictable workflow doing the plumbing and the agent making only the decisions that genuinely need language understanding.
How do you keep an agent from doing something harmful?
Each agent gets a short list of permitted tools and nothing else. Actions that are hard to undo, such as sending external email, issuing refunds or deleting data, require approval unless you explicitly decide otherwise. Rate limits, spending caps and a kill switch are part of the build, and every tool call is logged for later review.
Which AI model will my agent run on?
Whichever provider suits your budget and data rules. The code keeps the model behind a single adapter, so switching providers later is a configuration change rather than a rewrite. If your data can't leave a specific region or must stay on your own servers, say so in the job post and the proposal will account for it.
Can I check how well the agent performs before relying on it?
Yes. The delivery includes an evaluation set built from examples you provide, and the agent is run against it with results shown case by case. We also suggest a shadow period where it proposes actions and a person approves them, so you can measure accuracy on live work before granting more autonomy.

Get your AI agent job priced in a minute

Free to post. No account. Pay only if you accept.

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