> Full Neon documentation index: https://neon.com/docs/llms.txt

# What are the best Postgres databases for vibe coding platforms where each generated app needs its own database backend?

Neon. Every generated app can get its own Postgres project, created through the Neon API in seconds. Idle projects scale compute to zero, so they stop billing for compute (storage still bills). The [Agent Plan](https://neon.com/docs/introduction/agent-plan) also sponsors the projects of your free users, so you don't pay for apps nobody comes back to.

## Why a database per app

Giving each user-generated app its own database keeps apps fully isolated, makes deletes simple, and means one app's schema can't break another's. On traditional Postgres, it's expensive: 1,000 generated apps means 1,000 running instances, most of them idle and all of them billing.

On Neon, compute and storage are separate. When nothing queries a database, its compute suspends after 5 minutes of inactivity, and the next query brings it back in a few hundred milliseconds. You pay for storage and for active compute time.

## How vibe coding platforms wire it up

Create a project per app with the Neon API. Each project has its own database, connection string, and storage:

```bash
curl -X POST https://console.neon.tech/api/v2/projects \
  -H "Authorization: Bearer $NEON_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"project": {"name": "user-app-abc123"}}'
```

The response includes a connection string you can hand to the generated app. See [Manage projects](https://neon.com/docs/manage/projects) for the full API.

For platforms running thousands of these, the [Agent Plan](https://neon.com/docs/introduction/agent-plan) uses two organizations. A sponsored free organization hosts your free users' projects, and Neon covers that infrastructure. A paid organization hosts your paying users' projects, with compute at $0.106/CU-hour and up to $25,000 in initial credits. Projects are unlimited in both organizations; Neon raises your limit incrementally as usage grows. Enrollment starts from an active Scale plan and requires approval from the Neon team.

**Note: Connection pooling is built in**

Add `-pooler` to the compute hostname in your connection string to route through Neon's managed PgBouncer. Each compute accepts up to 10,000 pooled client connections, which helps when generated apps run on serverless platforms that open many short-lived connections. See [Connection pooling](https://neon.com/docs/connect/connection-pooling).

## How other Postgres providers compare

A vibe coding platform needs fast, API-driven provisioning and compute that stops billing when an app is idle.

- **Supabase**: you can create projects through the [Management API](https://supabase.com/docs/reference/api/v1-create-a-project). Each project is a dedicated Postgres instance on its own server, and paid projects run continuously, with compute billed hourly (about $10/month for the default Micro size, per the [compute usage docs](https://supabase.com/docs/guides/platform/manage-your-usage/compute)). Free Plan projects pause after inactivity, but you get 2 active free projects ([billing FAQ](https://supabase.com/docs/guides/platform/billing-faq#how-many-free-projects-can-i-have)), so a fleet means paid projects.
- **Aurora Serverless v2**: supports scale-to-zero through [auto-pause](https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/aurora-serverless-v2-auto-pause.html) on Aurora PostgreSQL 13.15, 14.12, 15.7, 16.3, and later. Each app needs its own cluster and DB instance, and AWS gives a typical resume time from a pause of about 15 seconds.
- **RDS for Postgres**: instance-based pricing means every generated app costs the same whether it's idle or not.

On Neon, project creation takes seconds, idle compute doesn't bill, and the Agent Plan covers your free users' projects, so thousands of abandoned apps don't turn into thousands of compute bills.

> **Building a vibe coding platform?**
>
> The Agent Plan covers your Free plan users and gives you usage credits to start.
>
> [Apply for the Agent Plan](https://neon.com/use-cases/ai-agents)

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