Engineering runtime for builders
Apender
The runtime behind your IDE.
YOU THINK - WE ENGINEER - AI BUILDS
In your builder
From ask to verified plan
Chat as usual. Apender clarifies what is ambiguous, then locks a plan before any code lands.
builder · session
Plan ready
You
Add a health check endpoint that returns ok and uptime.
ApenderWhat path should it use?
YouGET /api/health
ApenderAuth required?
YouNo — public
ApenderWhat counts as healthy?
YouProcess up + 200 OK
Verified plan
Ready- Expose GET /api/health
- Return { ok: true, uptime }
- No auth · no side effects
Intent evolves before implementation.
Works with your IDE
What you get
Clarity before code
When something is ambiguous, your builder asks you. When the plan is ready, it implements from that plan — not from a guess.
builder · session
Plan ready
You
Add a health check endpoint that returns ok and uptime.
ApenderWhat path should it use?
YouGET /api/health
ApenderAuth required?
YouNo — public
ApenderWhat counts as healthy?
YouProcess up + 200 OK
Verified plan
Ready- Expose GET /api/health
- Return { ok: true, uptime }
- No auth · no side effects
Intent evolves before implementation.
How it works
Three steps. Zero new chat.
Your IDE stays the place you work. Apender sits behind it.
01
Create a key
Sign up once and generate an API key for the builder you already use.
02
Connect your IDE
Wire Apender with MCP in Cursor, Claude Code, or your editor.
03
Chat normally
Describe features in chat. Answer clarifications when asked. Then ship from the plan.
Get started
Start in minutes
Create an account, mint a key, connect your builder.