--- title: "AI agent development for products in production" description: "Senior engineers build AI agents that call your tools, check their own work and stay within budget, inside your product. From $4,000/month." url: https://zeroic.in/ai-agent-development --- [contra](https://contra.com/ZeroicAgency/reviews) [Clutch](https://clutch.co/profile/zeroic#reviews) [LinkedIn](https://www.linkedin.com/services/page/4a8a1330a86885374b/?viewAsBuyer=true) # AI agents that take real actions in your product, and check their work. [Talk to an AI engineer](https://zeroic.in/book?service=retainers) [See the work](https://zeroic.in/work) **Starting at** $4,000/mo **Commitment** Monthly **Products shipped** 40+ ## Where most agent projects are An agent that answers one question in a demo is easy. One that runs ten steps against real data, calls your APIs and recovers when step three fails is the hard part. Our engineers built the analysis agents in an analytics app used by 1.5M+ people: agents that wrote and ran Python in sandboxes. The agent only works in the demo → Agents tested on real tasks before launch One bad tool call ruins the whole run → A check after every step that matters Costs climb with every extra step → Cheap models first, escalate on failure Nobody can see why it did that → Every step logged and easy to inspect ## What goes into an agent that holds up ### Code execution, sandboxed Agents that write and run code do it in a sandbox such as E2B, with LangChain or LangGraph planning the steps, recovery when one fails and results streamed to your users live. ### Tools with guardrails Agents act through your APIs, so every tool gets a narrow schema, input checks and permissions. Anything that spends money or deletes data waits for a person to approve it. ### A checker ahead of the model Before anything an agent writes runs against your data, a validator checks it. A model behind a strict check is more reliable than a bigger model working on its own. ### Costs you can predict Start each task on a cheaper model and escalate to a frontier one only after failed checks. Log every escalation, and within weeks you know which tasks need the expensive tier. ## How it works 1. 01 ### Pick a tier Part-time, dedicated or embedded, from $4,000 a month. Tiers differ in hours and in how closely we work with your team. 2. 02 ### Pick the first task A senior engineer picks one task with you, gathers real examples of it and agrees what a correct run looks like first. 3. 03 ### Ship and measure Agents, tools and evals, every week. The engineer doing the work is the one on your calls. Change tier or stop any month. Starting at $4,000/mo Part-time from $4,000/month, month to month. Building a whole AI product from scratch? See our [AI development company](https://zeroic.in/ai-development-company) page. Need AI work beyond agents? [Hire AI developers](https://zeroic.in/hire-ai-developers). [Talk to an AI engineer](https://zeroic.in/book?service=retainers) Shankar Prasad and Sudhanshu Sharma have been with FormulaBot for 3+ years. We started as a simple English-to-SQL formula generator. It's now a 'chat with your data' product serving 1.5M+ users. They built it like it was theirs. David Bressler David Bressler Founder @ FormulaBot ## Work we've shipped AI · Analytics ### [Better Analyst (formerly FormulaBot)](https://zeroic.in/formulabot) An analytics app used by 1.5M+ people. We built agents that write and run Python, SQL and R in sandboxes. AI · MVP → Retainer ### [Performalise](https://zeroic.in/performalise) An engineering analytics suite. We built the pipeline and AI models that read commits, PRs and sprint data. AI · EdTech ### [QuizBot](https://zeroic.in/quizbot) AI that turns any text or URL into quizzes, with an API other products embed. 2,500+ users, then acquired. Further reading - [GPT vs Claude vs Llama in production: choose by task type](https://zeroic.in/blog/gpt-vs-claude-vs-llama-production) - [English-to-SQL at a million users: what breaks, in order](https://zeroic.in/blog/english-to-sql-at-1m-users) - [AI audit report: five things a good one delivers](https://zeroic.in/blog/ai-audit-report-deliverables) ## How we can help Four ways to work with us - pick what fits, switch when it doesn’t. From $1,000 · 1-2 weeks ### [Audits](https://zeroic.in/services/ai-audit) Find what's broken - or whether AI is worth it - before you build. Learn more From $12,000 · 5-6 weeks ### [MVP Sprint](https://zeroic.in/services/mvp-development) Zero to production in 5-6 weeks. A real product, not a prototype. Learn more From $4,000/mo · Recurring ### [Retainer](https://zeroic.in/services/senior-developers) A senior engineer embedded on your team, month to month. Learn more From $6,000 · 2-4 weeks ### [Code Rescue](https://zeroic.in/services/code-rescue) Vibe-coded app breaking under real users? We rebuild it to hold. Learn more [Compare all services](https://zeroic.in/services) FAQ ## Frequently asked questions How much does AI agent development cost? Most agent work runs on a retainer, from $4,000 a month for the part-time tier. A new product built around an agent can be an MVP Sprint, with one fixed price agreed before the build. Sprints start at $12,000. Not sure where an agent pays off? An AI audit, from $1,000, maps it first. Which frameworks do you use for agents? LangChain and LangGraph where they help, plain code where they do not, with OpenAI, Anthropic Claude or open models chosen per task by quality, cost and speed. How do you stop an agent doing something harmful? Narrow tools, permission checks on every action, and a person approving anything that spends money, sends messages or deletes data. Every run is logged, so you can see why it acted. Can you add an agent to our existing product? Yes. Most agent work goes into products that are already live. We work in your codebase and connect the agent to the APIs you already have. Do we own everything you build? Yes, 100%. You own the code, prompts, evals, docs and credentials. ## Hear from us within 24 hours. **Prashant and Khushi** Partners @ Zeroic Want an agent that does real work? Tell us the task you want it to handle. We'll tell you what it takes and which tier fits. Rather talk it through? 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