Your app, exercised.
We launch it and run checks across your code and key workflows.
Build fast.
Ship with confidence.
Built with AI? Bring your project.
LovableReplitBoltCursorv0WindsurfVS CodeCodespaces
AnthropicOpenAIReactNext.jsPythonNode.jsPostgreSQLFastAPI
Put proof behind your next move.
Factory launches your app, checks your code and workflows, and records what happens. You get an evidence-backed HTML report with findings and clear next steps.
PAYMENT FAILURE COVERAGE
125 payment failure families.
A preserved catalog spanning checkout, access, credits, retries, webhooks and delivered output.
Factory Report
Recorded development run · Controlled provider and isolated test services
15 of 15 selected negative checks passed
Payment and ownership held under adversarial conditions.
Factory exercised replay, concurrency, authorization, provider failure, browser interruption and checkout-return cases across the repaired application.
Payment boundary
Replay handled
Owned output recovered
What this establishes
Repeated purchase events stayed idempotent across sequential, parallel, restart and alternate-event-ID replays. Credit balances did not receive a second award.
Concurrency and authorization
With one credit and two concurrent requests, one completed and the other received the payment-required response. A different purchaser could not change the original owner’s task, and a spoofed owner field did not move debit or output to another account.
Failure and interruption behavior
Provider failure left credits and outputs unchanged. A lost response or browser disconnect still left a committed result owner-readable after fresh login.
Your next product launch, customer demo, or investor meeting deserves more than “it should work.”
Know what works. Know what’s next.
What happened, recorded.
Findings connect to observed behavior and supporting evidence.
Your next steps, prioritized.
See what needs attention and what to verify next.
Real applications. Recorded results.
Document retrieved · The saved document reopened after a conversation reload.
Retrieval answer · The completed answer and its retrieved source records appear in the native application.
Seat updated · The assistant confirms seat 14C, and the itinerary and service timeline show the change.
Widget follow-up · The generated counter reaches 1, sends its value to the conversation, and receives the assistant’s response.
Supervisor result · A spoken request reaches the example account tool and returns the recorded balance response using fictional account data.
Reservation confirmed · The native browser workflow filtered a fictional hotel, completed the requested guest details and recorded the exact confirmation in a local booking lab.
Independent reference examples. Platform names do not imply affiliation or endorsement.
From your code to your next move.
01
Choose your pack
Pick one, two, or ten Snapshot runs, or choose deeper validation.
02
Receive your confirmation
Your confirmation includes your package details and submission link.
03
Submit your project
Share your code and the instructions needed to understand it.
04
Get your report
Explore the findings, recorded evidence, and recommended next steps.
Built your way. Examined by Factory.
Where did you build it?
LovableReplitBoltCursorv0WindsurfVS CodeCodespaces
Bring your exported code.
What powers your app?
AnthropicOpenAIReactNext.jsPythonNode.jsPostgreSQLFastAPISupabaseFirebaseStripeLangChain
Your code. Your stack.
What can Factory examine?
Findings backed by evidence.
Explore technical compatibility
| Languages | JavaScript · TypeScript · Python |
|---|---|
| Frontend | React · Next.js · Vite |
| Backend | Node.js · FastAPI |
| AI frameworks | Vercel AI SDK · LangChain · LangGraph · OpenAI Agents SDK · ChatKit |
| Model integrations | OpenAI Chat Completions, Responses & embeddings · Anthropic Messages & streaming · Vercel AI Gateway |
| AI workflows | Chat · Streaming · Structured output · Document workflows · Retrieval · Agents & tool calls |
| Data & retrieval | PostgreSQL · Supabase · Embeddings & vector retrieval |
| Package managers | Bun · pnpm · Yarn · uv |
| Project files | package.json · npm, pnpm, Yarn & Bun lockfiles · pyproject.toml · uv.lock |
| Container environment | Linux x86-64 · Docker/OCI images · Isolated execution through rootless Podman |
| Application sign-in | Email/password test accounts · Native guest sessions |
| Voice & realtime | OpenAI Realtime API · Agents SDK · Streaming voice · Tools · Agent handoffs |
| Computer use | OpenAI Responses API · Playwright · Browser actions · Screenshot feedback |
| Submission | Project source ZIP |
AI verification: Factory exercises native SDK integrations using controlled synthetic model responses. Each report identifies the provider configuration used.
Runtime setup: Factory configures the application environment. Custom Dockerfile and Compose setups receive configuration review.
Access setup: Test accounts and application-specific settings are configured for the selected workflow.
Each project’s verification establishes its exact supported combination.
Your runway is too valuable for guesswork.
Sound familiar?
“paying twice sometimes three times…”r/replitRead the post
“all the time you saved is gone.”r/cursorRead the post
“fix, test, fix, test, fix over and over…”r/lovableRead the post
“more time guiding and debating with Claude Code…”r/ClaudeAIRead the post
Excerpts from public community discussions.
Demand proof before you fund the next fix.
Choose your next move.
Compare packagesSingle
A great place to start.
$249
1 Snapshot run
Get SnapshotDouble
For a closer look.
$399
2 Snapshot runs
Get DoubleTen-Pack
For ongoing development.
$999
10 Snapshot runs
Get Ten PackValidation
A deeper look.
$1,999
Deeper validation + 10 Snapshots
Get Validation