Product Managersbuild like a professional developer

Don't wait on your dev. Be one today.

Real databaseReal authReal paymentsReal permissionsStaging + LiveCode you own

Get Early Access

Tap to expand

How it works

Download. Connect your AI. Build.

Start free. Bring your AI. Ship real code.

Download

Install the YoAmigo desktop app. Free, no card required.

Connect your AI

ChatGPTClaudeCursor

Build

Describe what you want. Ship a real app with auth, payments, and a database. Keep the code.

An AI subscription with one of the providers above is required.

The tools developers gatekeep. Unlocked.

Other AI Builders stop where it gets hard. YoAmigo doesn't. Real migrations, auth, payments, deploys.

Other AI Builders

AI +

Database migrations

$ db push --force

Applying schema...

column "role" dropped

AI changes the database directly. Customer data can disappear.

migrations / 0014_add_role

expandadd new fields

deployed to live

changemove live data over

contractremove old fields

zero-downtime

Phased migrations. Live users never hit broken state.

Permissions

NoteCard.tsx

userId === u.id

api/notes.ts

userId === u.id

share.tsx

// missed check

1 leak

Scattered checks. One miss leaks data.

app / notes / page.tsx

const notes = app.notes.findMany()

defined permissions

Defined permissions. The unsafe path won't compile.

Payments

.env.local

STRIPE_SECRET_KEY=sk_live_51N3...8x9z

×no signature check

×no idempotency

Keys exposed. Webhooks unverified. Charges double-fire.

webhook

signed

idempotent

charged

every charge, every time

Signed, idempotent, refundable. First try.

Deployment

local

live

no test, no rollback

Local to prod. No staging. No rollback.

local

test

live

push, preview, promote

Staging by default. Push, preview, promote.

Permissions

Don't leak your user's data!

Tests pass. Data leaks anyway. YoAmigo enforces permissions on every query, so a check the AI forgot can't expose your user's data.

Your permission policy

Enforced

// app/policy.ts

definePolicy({ note: { create: 'authenticated', // any signed-in user read: ownerOf('authorId'), // only the note's author update: ownerOf('authorId'), delete: ownerOf('authorId'), }, })

PermissionsStudio

note

createAny signed-in user.

readThe author of this note.

updateThe author of this note.

deleteThe author of this note.

Defined once. Yoamigo runs it on every query, mutation, and relation. If the AI writes code that violates it, results get filtered or the call is blocked.

Other AI Builders

Risky

// app/api/notes/route.ts

notes.findAll()

// AI wrote this. It works. It returns every user's notes.

My notes

6 items

Trip ideas

Lisbon in October, hike on day three

Sara: medication schedule

Atorvastatin 20mg nightly, refill May 18

leaked

Eve: bank reset codes

8821 4490 1763 (do not share)

leaked

Bob: resignation draft

After six years, I've decided to step away…

leaked

Book wishlist

A Pattern Language, The Soul of a New Machine

Alex: therapy notes

Working through conflict avoidance with manager

leaked

4 of 6 notes belong to other users

Protected

// app/api/notes/route.ts

app.notes.findAll()

// AI wrote this. Only the signed-in user's notes come back.

My notes

3 items

Trip ideas

Lisbon in October, hike on day three

Book wishlist

A Pattern Language, The Soul of a New Machine

Grocery list

Olive oil, sourdough starter, lemons

Only your notes, scoped automatically

A candidate opens their own application page.

Your permission policy

Enforced

// app/scorecard.policy.ts

definePolicy({ scorecard: { create: hasRole('interviewer'), // assigned interviewers only read: hasRelation('hiringTeam', { match: { userId: caller('userId') } }), // hiring team only, not the candidate update: ownerOf('interviewerId'), delete: ownerOf('interviewerId'), }, })

PermissionsStudio

scorecard

createAssigned interviewers.

readHiring team only. Not the candidate.

updateThe interviewer who wrote it.

deleteThe interviewer who wrote it.

Defined once. No feature can leak scorecards to the candidate.

Other AI Builders

Leaks anyway

The query pulls every interviewer's private feedback.

// app/api/applications/[id]/route.ts

db.candidate.get(viewerId).include({

applications: {

interviews: { scorecards: {

leaks every interviewer's private rating and feedback to the candidate

interviewer: true, rating: true, feedback: true

} }

}

})

Test passedWhat the test asserts

Candidate sees their own application stage
AI forgot to check that no private feedback came through

Your application, Senior Product Manager at Northstar

Submitted on April 12th

Interview scorecards

Tom Chen, panel interviewer

No hire

No hire. Not a culture fit, too quiet in the panel.

leaked

Sarah Park, product sense

Weak hire

Weak hire. Strong on metrics, but light on product judgment.

leaked

Anika Roy, hiring manager

Strong hire

Strong hire. A stretch role for them, but worth taking.

leaked

Every interviewer's private feedback came back too.

Stays safe

Your rules filter it, no matter how deep the relations.

// app/api/applications/[id]/route.ts

every nested layer scoped automatically

app.candidate.get(viewerId).withApplicationStatus()

Test passedWhat the test asserts

Candidate sees their own application stage
And no private interview feedback came through

Your application, Senior Product Manager at Northstar

Submitted on April 12th

Application stages

Application status

Phone screenCompleted

Product interviewCompleted

OnsiteCompleted

DecisionIn review

Same request. Only the public stage comes back.

Security

Your production keys
never touch your laptop.

Your real credentials never leave YoAmigo. A stolen laptop can't leak what isn't there.

Encrypted in our vault

Database, auth, and payment keys live encrypted in YoAmigo. AES-256-GCM.

In memory while it runs

Streamed into your dev server when you Run. Gone when you stop.

Never written to .env

No .env on your machine. Nothing for malware or a leaked commit to scrape.

Files

Buckets, Signed URLs, CORS. All of it, gone.

Public or private. Tiny or huge. Streamed or downloaded. Real folders, real permissions, no plumbing.

Public and private, by folder. Drop a file in private/ and only the people you allow can open it.
Protection is clear. One look at the folder tree shows what's locked down.
Stream video. Host huge files. Sign download links. No extra setup for any of it.
Public files load fast, everywhere. Edge-cached and optimized. Nothing to tune.
One panel. No bucket consoles, no CORS dashboards, no AWS tabs.

Assets

hero.jpg4.2 MB

logo.svg12 KB

promo.mp4180 MB

podcast-ep01.mp338 MB

client-contract.pdf2.1 MB

unreleased-cut.mov2.1 GB

draft-hero.psd96 MB

Built in

It just works.

Bring your own AI

Claude or ChatGPT. Your account, no per-token markup.

Migrations

Schema changes roll out in safe phases.

Real code, owned by you

Export anytime.

Payments

Payments, subscriptions, invoices. Stripe Integration.

Assets

Videos, 3D models, images, icons. Streamable and editable.

Publishing

One click to go live. Custom domains supported.

Data

Users, orders, content. All managed.

Auth & Permissions

Admin, editor, viewer, custom. Role-based and locked down.

Backend

Your app handles the hard stuff automatically.

Agents

Your favorite agents ready for use.

Drop in Claude, Cursor, Codex, Copilot, or Cline. YoAmigo wires every one of them to YoAmigo rules, automatically.

YoAmigo Rules

SourceIn sync

// .yoamigo/skills/protect-route/SKILL.md

---

name: protect-route

description: Lock new routes behind our auth helper.

---

Use requireSession() at the top of every route handler. Never read req.user directly.

Claude Code

Claude reads this

CLAUDE.md

synced

Cursor

Cursor reads this

.cursor/rules/

synced

Codex

Codex reads this

AGENTS.md

synced

Copilot CLI

Copilot reads this

AGENTS.md

synced

Cline

Cline reads this

.clinerules/

synced

Use the best agents you already love using!

Bring your own AI

Save 5x to 10x than other AI Builders

YoAmigo is built so you can use the most powerful models at the best price, just like senior engineers do. AI Builders mark up API key tokens which are already marked up, costing up to 10× more than just using your own AI. Save money by using your own AI subscriptions.

Same models. Same context. Without the two layers of markup.

Relative monthly cost to build

YoAmigo + Your AIyou pay

Your subscription

Subscription + hosting at cost. No markup.

Buying API access directly2-5× more

API markup

Other AI Builders5-10× more

API markup

Builder margin

Estimated. Real cost depends on your AI provider and the models you use.

What it costs

Pick a plan. Add hosting at cost. That's your whole bill.

8 months free vs monthly

Free

Build, prototype, share.

$0forever

+ Hosting at cost

Pay only what your apps use. About $1 to $5 / month per project.

•1 project
•Full builder access
•Publish apps

Start free

Best value

Builder

For builders shipping real apps.

$40$12/mo

billed annually ($144/yr)

8 months free

+ Hosting at cost

Pay only what your apps use. About $1 to $5 / month per project.

•Unlimited projects
•Custom domain per project
•Staging + production environments
•Priority support

Start building

Enterprise

Private org, SSO, dedicated support.

Customtalk to us

+ Hosting at cost

Pay only what your apps use. About $1 to $5 / month per project.

•Everything in Builder
•Private organization & SSO
•Volume seats and projects
•Dedicated support & SLA

Talk to us

Bring your own AI

You need a Claude or ChatGPT account. We'll help you set it up.

ChatGPTClaude

AI is not included. That's by design. Here's why.

Your plan. Hosting at cost. Your AI. That's it.

Get Early Access

Don't leak your user's data!

Tests pass. Data leaks anyway. YoAmigo enforces permissions on every query, so a check the AI forgot can't expose your user's data.

Your permission policy

Enforced

// app/policy.ts

definePolicy({ note: { create: 'authenticated', // any signed-in user read: ownerOf('authorId'), // only the note's author update: ownerOf('authorId'), delete: ownerOf('authorId'), }, })

PermissionsStudio

note

createAny signed-in user.

readThe author of this note.

updateThe author of this note.

deleteThe author of this note.

Defined once. Yoamigo runs it on every query, mutation, and relation. If the AI writes code that violates it, results get filtered or the call is blocked.

Other AI Builders

Risky

// app/api/notes/route.ts

notes.findAll()

// AI wrote this. It works. It returns every user's notes.

My notes

6 items

Trip ideas

Lisbon in October, hike on day three

Sara: medication schedule

Atorvastatin 20mg nightly, refill May 18

leaked

Eve: bank reset codes

8821 4490 1763 (do not share)

leaked

Bob: resignation draft

After six years, I've decided to step away…

leaked

Book wishlist

A Pattern Language, The Soul of a New Machine

Alex: therapy notes

Working through conflict avoidance with manager

leaked

4 of 6 notes belong to other users

Protected

// app/api/notes/route.ts

app.notes.findAll()

// AI wrote this. Only the signed-in user's notes come back.

My notes

3 items

Trip ideas

Lisbon in October, hike on day three

Book wishlist

A Pattern Language, The Soul of a New Machine

Grocery list

Olive oil, sourdough starter, lemons

Only your notes, scoped automatically

A candidate opens their own application page.

Your permission policy

Enforced

// app/scorecard.policy.ts

PermissionsStudio

scorecard

createAssigned interviewers.

readHiring team only. Not the candidate.

updateThe interviewer who wrote it.

deleteThe interviewer who wrote it.

Defined once. No feature can leak scorecards to the candidate.

Other AI Builders

Leaks anyway

The query pulls every interviewer's private feedback.

// app/api/applications/[id]/route.ts

db.candidate.get(viewerId).include({

applications: {

interviews: { scorecards: {

leaks every interviewer's private rating and feedback to the candidate

interviewer: true, rating: true, feedback: true

} }

}

})

Test passedWhat the test asserts

Candidate sees their own application stage
AI forgot to check that no private feedback came through

Your application, Senior Product Manager at Northstar

Submitted on April 12th

Interview scorecards

Tom Chen, panel interviewer

No hire

No hire. Not a culture fit, too quiet in the panel.

leaked

Sarah Park, product sense

Weak hire

Weak hire. Strong on metrics, but light on product judgment.

leaked

Anika Roy, hiring manager

Strong hire

Strong hire. A stretch role for them, but worth taking.

leaked

Every interviewer's private feedback came back too.

Stays safe

Your rules filter it, no matter how deep the relations.

// app/api/applications/[id]/route.ts

every nested layer scoped automatically

app.candidate.get(viewerId).withApplicationStatus()

Test passedWhat the test asserts

Candidate sees their own application stage
And no private interview feedback came through

Your application, Senior Product Manager at Northstar

Submitted on April 12th

Application stages

Application status

Phone screenCompleted

Product interviewCompleted

OnsiteCompleted

DecisionIn review

Same request. Only the public stage comes back.

Buckets, Signed URLs, CORS. All of it, gone.

Public or private. Tiny or huge. Streamed or downloaded. Real folders, real permissions, no plumbing.

Public and private, by folder. Drop a file in private/ and only the people you allow can open it.

Protection is clear. One look at the folder tree shows what's locked down.

Stream video. Host huge files. Sign download links. No extra setup for any of it.

Public files load fast, everywhere. Edge-cached and optimized. Nothing to tune.

One panel. No bucket consoles, no CORS dashboards, no AWS tabs.

Your favorite agents ready for use.

Drop in Claude, Cursor, Codex, Copilot, or Cline. YoAmigo wires every one of them to YoAmigo rules, automatically.

YoAmigo Rules

SourceIn sync

// .yoamigo/skills/protect-route/SKILL.md

---

name: protect-route

description: Lock new routes behind our auth helper.

---

Use requireSession() at the top of every route handler. Never read req.user directly.

Claude Code

Claude reads this

CLAUDE.md

synced

Cursor

Cursor reads this

.cursor/rules/

synced

Codex

Codex reads this

AGENTS.md

synced

Copilot CLI

Copilot reads this

AGENTS.md

synced

Cline

Cline reads this

.clinerules/

synced

Use the best agents you already love using!

Save 5x to 10x than other AI Builders

Same models. Same context. Without the two layers of markup.

Product Managersbuild like a professional developer

Download. Connect your AI. Build.

Download

Connect your AI

Build

The tools developers gatekeep. Unlocked.

Database migrations

Permissions

Payments

Deployment

Don't leak your user's data!

Your production keysnever touch your laptop.

Encrypted in our vault

In memory while it runs

Never written to .env

Buckets, Signed URLs, CORS. All of it, gone.

Built in

Bring your own AI

Migrations

Real code, owned by you

Payments

Assets

Publishing

Data

Auth & Permissions

Backend

Your favorite agents ready for use.

Save 5x to 10x than other AI Builders

What it costs

Product Managersbuild like a professional developer

Download. Connect your AI. Build.

Download

Connect your AI

Build

The tools developers gatekeep. Unlocked.

Database migrations

Permissions

Payments

Deployment

Don't leak your user's data!

Your production keysnever touch your laptop.

Encrypted in our vault

In memory while it runs

Never written to .env

Buckets, Signed URLs, CORS. All of it, gone.

Built in

Bring your own AI

Migrations

Real code, owned by you

Payments

Assets

Publishing

Data

Auth & Permissions

Backend

Your favorite agents ready for use.

Save 5x to 10x than other AI Builders

What it costs

Your production keys
never touch your laptop.

Your production keys
never touch your laptop.