See your app working in 5 days, before you commit.

Real software, built with AI, reviewed by senior engineers. Tell us your idea on a free call, and we turn it into a Clickable Prototype you can try before you sign anything.

nexera-agentLive
›
  • Parse requirementsqueued
  • Write specqueued
  • Generate codequeued
  • Run testsqueued
  • Deploy previewqueued
Tests
—
Lighthouse
—
Status
Idle
✓Spec-driven, test-verified
Agent building…
2–4 wks
From idea to live MVP
1–2
Senior devs per build
100%
Code & IP stays yours
24 hr
Ballpark turnaround
Who we help

Built for teams that need proof, not promises

Four kinds of teams come to us, each with a different job to get done.

Founders with an idea

See and click through your product before you raise money or commit a serious budget.

Best fitClickable Prototype

Tried building with AI and got stuck

Your Lovable, Bolt or Cursor app broke, leaks data or can't grow. We make it production-ready.

Best fitAI App Rescue

Small & mid-sized businesses

Add AI to the product or workflow you already run, without hiring an in-house team.

Best fitAI Feature Integration

Agencies & software companies

Senior capacity that works in your repo, or white-label under your brand, when projects pile up.

Best fitDedicated Developer
What we build

Full-stack delivery, accelerated by AI

Packages & pricing

Start small, see it working, then build

Every project starts with a free Scope Call. Begin with a Clickable Prototype or a Code Audit, then build in milestones, each with a fixed price agreed in writing.

~5 business days

Clickable Prototype

$100–$300By scope · credited if you continue

ForFounders who want to click through their product before paying for the build.

  • Free Scope Call with a senior developer
  • Product Requirements written with you
  • Clickable screens with realistic sample data
  • Screenshots and a PDF walkthrough to keep
Start with a prototype →Details: Clickable Prototype
Code Audit in 3 business days

AI App Rescue

$300Code Audit · credited if you continue

ForApps built with Lovable, Bolt, Cursor or Replit that broke, leak data or can't grow.

  • Written audit: security holes, what to keep, what to rebuild
  • Milestone plan with a fixed price for the first fix
  • Tests, CI and hardening on your existing code
  • Deployed and handed over in your repo
Get a Code Audit →Details: AI App Rescue
1–3 weeks

AI Feature Integration

from $1,500Fixed price per milestone

ForExisting products that need LLM chat, automation or agents.

  • LLM chat, automation or agent workflow
  • Guardrails and evals for reliable output
  • Wired into your stack and data
  • Tested and deployed
Add AI to my product →Details: AI Feature Integration
2 weeks

PoC Sprint

from $2,400Fixed price, agreed after the Scope Call

ForValidating one core idea or technical risk before a bigger build.

  • Scoping session and written success criteria
  • Working proof-of-concept in your repo
  • Findings: what works, the risks, next steps
Plan a PoC →Details: PoC Sprint
Full-time · ongoing

Dedicated Developer

from $35/hourUsually after a first project together

ForTeams that want a senior developer on their product full-time.

  • Senior full-stack developer, AI-accelerated
  • Works in your repo, tools and rituals
  • Weekly progress report
  • Cancel with 2 weeks' notice
Add a developer →Details: Dedicated Developer

Each milestone gets a fixed price in writing before it starts. Later milestones carry a ballpark until they're priced. Get a ballpark with the calculator below

Full pricing and payment

Why AI-native

Built for speed, validated before you scale

MVP in 2–4 weeks, not months

A typical agency needs 4–6 months for the same MVP. AI writes the code; a senior developer reviews every change.

PoC in 2 weeks

Validate your idea with a working proof-of-concept before committing budget.

Fast production launches

Production-grade delivery: tested, monitored and ready to scale on day one.

Try it

From a prompt to a working screen

Pick a request and watch the agent assemble the interface. In a real build, every generated screen is then specced, tested and reviewed by a developer.

Choose a prompt
›Parse prompt → intent + entities
·Choose layout pattern
·Generate components
·Apply design tokens
·Wire interactions + states
·Screen ready · sent for dev review
Tuesday, 7:12 am
Today
Move
486/620 kcal
Exercise
24/40 min
Stand
9/12 h
Steps · last 7 days8,432 today
W
T
F
S
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M
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Upper bodyStrength35 min
Yoga flowMobility20 min
Start workout
The difference

Months of work, compressed into weeks

A typical agency build vs an AI-native build with a supervised agent loop, across the phases that usually eat your timeline.

TraditionalNexera AI
Idea → first working prototype
4–6 weeks
~5 business days
Prototype → launchable MVP
4–6 months
2–4 weeks
Change request → shipped
1–2 weeks
1–2 days
Within 24 h
Ballpark + scope in writing
Tested
Every feature ships with passing tests
1–2 devs
A senior pair, not a billing pyramid

Ranges reflect typical small-to-mid product scopes. Your numbers depend on complexity. Each milestone gets a fixed price in writing before it starts.

Cost comparison

What a typical MVP costs

The same small-to-mid MVP, built three ways.

What a typical MVP costs
Compared onTypical agencyFreelancerNexera AI
Typical cost$40k–80k$10k–25k$4.5k–9k
Time to launch4–6 months2–4 months2–4 weeks
Who reviews qualityA QA team, if it's in the budgetUsually self-reviewedA senior developer reviews every merge
Tests includedOften billed separatelyRarelyYes, with every feature
Code ownershipUsually yours, check the contractYours, if agreed in writingYours, in your repo from day one
If someone leavesThe agency reassigns staffThe project can stallSpecs, tests and docs make handover simple

Agency and freelancer figures are typical market ranges for a small-to-mid MVP, not quotes. Your Nexera AI price is fixed per milestone, in writing, before each milestone starts.

Our method

Not vibe coding. Engineered AI.

Anyone can prompt an AI into a demo. We run a disciplined loop: every feature starts as written requirements, becomes a spec, ships with tests, and only passes when it meets explicit acceptance criteria.

AI builds, developers supervise

AI does the heavy lifting under the review of a small senior team — often just one or two developers steering and approving — instead of a full engineering department. You get the output of a team at a fraction of the cost and time.

Developerin the loopPlanActVerifyReview
01Step

Requirements

We capture what the system must do in plain, reviewable language — no ambiguity for the AI to invent around.

02Step

Specs

Each requirement becomes a precise technical spec the AI implements against, scoped and traceable.

03Step

Tests

Automated tests are written alongside the code so behaviour is verified, not assumed.

04Step

Acceptance criteria

Nothing ships until it meets explicit, signed-off criteria — the developer is the final gate.

How we work

AI across the lifecycle

AI on every step — a human on every gate

We apply AI from planning to deployment. A developer reviews and signs off at each handoff, so speed never costs you control.

  1. Step 1: Plan

    AI

    Drafts requirements, risks and estimates from your brief.

    Scope signed offA developer picks the slice worth building first.

  2. Step 2: Write

    AI

    Generates and refactors code against the approved spec.

    Spec matchedEach change is checked against the spec it implements.

  3. Step 3: Review

    AI

    Summarises every diff and flags risky changes.

    Merge approvedA developer reads the diff before anything merges.

  4. Step 4: Test

    AI

    Writes unit, integration and E2E tests and runs them in CI.

    Criteria metAcceptance criteria are verified, not assumed.

  5. Step 5: Ship

    AI

    Deploys through CI/CD and monitors real usage.

    Release approvedA developer signs off the release to production.

AI does the workA developer signs off every gateShip feeds learnings into the next Plan
How it works

From idea to launch in four steps

  1. 1
    Day 1

    Free Scope Call

    A senior developer goes through your idea with you and writes down what the product must do.

    You getProduct Requirements + ballpark
  2. 2
    ~5 business days

    Clickable Prototype

    We build the screens with AI and realistic sample data, so you can click through the product.

    You getPrototype you can try, from $100
  3. 3
    Weeks 2–3

    Build & harden

    We turn the prototype into tested, secure, scalable production code, one priced milestone at a time.

    You getTested build in your repo
  4. 4
    Week 4+

    Launch & scale

    Fast production launch with CI/CD, monitoring and ongoing support.

    You getLive product + handover docs

Most MVPs go live in 2–4 weeks. It starts with a free Scope Call with a senior developer. No commitment.

Book a free Scope Call →
Our own product

A product you can open and try

InvestKit is built and run by our co-founder with the same AI method we sell. It's live and open to the public, so you can judge the work for yourself.

Stylised illustration based on the public demo.
In-house build · Web app · Personal finance

InvestKit

Investment tracking for Ukrainian investors: every broker and asset in one journal, with the annual tax declaration prepared from it.

Built fully from scratch in under 2 weeks.

Visit invest-kit.com (opens in a new tab)

The challenge

Ukrainian investors declare investment income themselves every year. With accounts at several brokers, that means converting each trade, coupon and dividend at the National Bank rate for its date, matching lots FIFO and rebuilding a year of statements in a spreadsheet.

What we built

  • One journal for US stocks, government and private bonds, real-estate funds, deposits and cash.
  • Statement import for Interactive Brokers, Inzhur and generic CSV. Re-importing a file never duplicates trades.
  • A tax module that calculates every lot at historical NBU rates and fills the F1 appendix and tax-office XML in the browser.
  • Analytics: value against benchmarks, XIRR / TWR, allocation and a 12-month income forecast.
  • Security built in: Google sign-in, Postgres row-level security, EU-hosted data and an append-only audit log.

Stack

  • Next.js
  • Supabase · Postgres
  • Google sign-in
  • Vercel
  • LiqPay

Outcome

Live at invest-kit.com in Ukrainian and English, with a public demo, a free plan and a Pro tier.

Don't see your industry here? Most of our client work is under NDA, and we keep it that way. On a call, we're happy to walk you through relevant experience, anonymised.

Book a call →

Read the full InvestKit story

Concepts

From dashboards to apps to agents

Concept screens that show the kind of product we build. These are illustrations, not client projects.

ops.yourstore.com
Orders overview
Last 30 days
▲ 18.4%
Orders
12,480
Avg. time
31 min
CSAT
4.8 / 5
Web app

Operations dashboard

  • Next.js
  • Postgres
  • Stripe
Arriving in12 min
M
Marco
E-bike · 1.2 km away
  1. Order confirmed5:42 pm
  2. Picked up5:58 pm
  3. On the waynow
  4. Delivered~6:10 pm
Mobile app

Live order tracking

  • React Native
  • Maps
  • Push
AI
Support agent
Online · replies instantly
Where's my order #4821? It was due yesterday.
orders.lookup(4821) · carrier.track()
Found it: it left the depot this morning and arrives today by 6 pm. I've added a $5 credit for the delay.
✓ Resolved in 1.4sCredit within policy
AI agent

Support agent with tools

  • LLM
  • Tool calling
  • Evals
Tech stack & AI tools

Mainstream tools, picked for your product

Proven, widely supported technology — so your product is easy to maintain and easy to hire for later.

Frontend

  • React
  • Next.js
  • Angular
  • Vue
  • TypeScript
  • Tailwind CSS

Mobile

  • React Native
  • Expo
  • Swift
  • Kotlin

Backend

  • Node.js
  • Python
  • .NET
  • PostgreSQL
  • Redis
  • GraphQL
  • REST APIs

Cloud & DevOps

  • AWS
  • Google Cloud
  • Vercel
  • Docker
  • GitHub Actions
  • CI/CD

AI

  • OpenAI
  • Anthropic Claude
  • Claude Code
  • Codex
  • Open-source LLMs
  • RAG
  • Vector DBs
  • Evals

Which AI tools see your code?

Only AI services on enterprise or API plans with training opt-out, so your code and data are never used to train models. Client code never goes into consumer chat apps. On request we use your own accounts and keys, or self-hosted open-source models.

Already have a stack? We work inside your existing setup, tools and conventions.

Security & quality

Fast, without cutting corners

Speed only matters if the result is safe to run. These are standard on every engagement.

You own everything

Code, repositories, infrastructure and docs are transferred to you. No lock-in, no licensing surprises.

NDA before kickoff

We sign your NDA, or ours, before any project details change hands.

Tested by default

Unit, integration and end-to-end tests ship with every feature and run on every commit.

Human-reviewed merges

A senior developer reads and approves every change the AI writes before it reaches main.

Security scanning in CI

Dependency audits, secret scanning and OWASP checks run automatically on each build.

Private-by-default AI

We use enterprise AI plans with training opt-outs, so your code and data are never used to train models.

Every merge passesLintType checkUnit testsE2E testsSecurity scanHuman review
Less risk for you

How we reduce your risk

Trying a new studio shouldn't feel like a gamble. These commitments come with every engagement.

Fixed price per milestone

Each milestone gets a fixed price and timeline in writing before it starts. No surprise invoices.

Pay as it's delivered

You pay per milestone, as working software is delivered.

Your repo from day one

Code lives in your repository from the first commit, so progress is always visible.

30-day bug-fix warranty

Bugs found in the 30 days after launch are fixed at no extra cost.

Pause or stop anytime

Give 2 weeks' notice to pause or stop, and keep everything built and paid for so far.

The team

Two senior engineers. No layers.

You work directly with the people who write your code — no account managers, no hand-offs.

Stanislav Cheslavskyi

Co-founder & CEO
12+ years · full-stack

Runs discovery, scoping and delivery, so you always have one clear point of contact. Also writes production code.

  • Discovery
  • Scoping
  • Delivery
  • Full-stack
LinkedIn Stanislav Cheslavskyi on LinkedIn (opens in a new tab)

Oleh Leskiv

Co-founder & CTO
12+ years · full-stack

Owns the architecture, the agent loop and code review — no AI-written change merges without a senior read. Also writes production code.

  • Architecture
  • Agent loop
  • Code review
  • Full-stack
LinkedIn Oleh Leskiv on LinkedIn (opens in a new tab)

More about Nexera AI

After launch

Support Plans

Launch is the start, not the finish. Keep your product secure, up to date and improving with the same senior team that built it.

Essential

Keep it running safely.

$150/ month
~5 dev hours a month
What's included
  • Uptime & error monitoring
  • Security patches & dependency updates
  • Bug fixes
  • Hosting & backup checks
Response timeNext business day
Discuss this plan →

Plans run month to month, so you can scale up or down as your product changes. Need a developer full-time? See the Dedicated Developer package above.

Ballpark calculator

Get a ballpark in 30 seconds

Adjust the scope for a rough timeline and budget range. After a free Scope Call, you get a fixed price for the first milestone in writing.

Project type
8
Features
Timeline
3–4 wks
Ballpark budget
$3k–$4.5k
Traditional
3–4 months
Nexera AI
3–4 wks

A rough range, not a quote. After a free Scope Call, each milestone gets a fixed price in writing before it starts.

Free resource

The MVP launch checklist

The 15 checks we run before an MVP goes live — from scope to the first month after launch. Useful with us or without us.

We only use your email to follow up on this request.

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FAQ

Questions, answered

Everything you need to know about working with an AI-native studio.

Most MVPs and PoCs ship in 2–4 weeks. Before that, you can click through a Clickable Prototype about 5 business days after the Scope Call.

Get started

Book a free Scope Call

Tell us what you're building. A senior developer replies within one business day and sets up a free 30-minute Scope Call. After it, you get a ballpark for the whole project and a fixed price for the first step.

contact@nexeracode.com

What happens next

  1. 1
    We reply within one business day

    A senior developer reads your message and answers personally.

  2. 2
    Free 30-min Scope Call

    We go through goals and constraints and write down the Product Requirements with you.

  3. 3
    Your first step, priced

    You get a fixed price for a Clickable Prototype or the first milestone, invoiced after the call. Then you decide.

Project type

By sending this form, you acknowledge that we process your details to respond to your request. See our Privacy Policy.