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

# What Postgres databases are designed for AI coding agents that need to create and destroy database instances automatically?

On Neon, every resource has a REST endpoint, so an agent can manage the whole database lifecycle in code. Projects are ready in seconds. Idle computes scale to zero, so unused databases stop accruing compute charges (storage still bills). Branches are copy-on-write, so an agent can branch a dataset for a task and delete the branch afterward without copying data.

## Features agents use

**Programmatic project creation.** A `POST /projects` call creates a project with a ready Postgres database and returns its connection string. Branches, databases, roles, and computes have their own endpoints. See the [API reference](https://neon.com/docs/reference/api).

**Scale to zero.** Computes suspend after 5 minutes of inactivity. The setting is fixed on the Free plan, can be turned off on the Launch plan, and is configurable from 1 minute to always on with the Scale plan. Compute is billed in CU-hours only while it runs, so a fleet of mostly idle agent-owned databases uses little compute. Storage bills separately.

**Branching for state isolation.** A branch is a copy-on-write clone of an existing database. An agent can branch a base dataset for a task, change it, and then keep or delete the branch.

```bash
neon branches create --name task-2026-04-22-7a3f
# ... agent runs SQL ...
neon branches delete task-2026-04-22-7a3f
```

**Connection pooling.** The pooled connection string routes through PgBouncer, which accepts up to 10,000 client connections per compute, so many agent processes can connect at once. See [Connection pooling](https://neon.com/docs/connect/connection-pooling) for the Postgres connection limits per compute size.

**pgvector and other extensions.** [pgvector](https://neon.com/docs/extensions/pgvector) is available for embeddings and similarity search, along with other [supported Postgres extensions](https://neon.com/docs/extensions/pg-extensions).

## The Agent Plan

If you're a platform whose agents provision databases for end users, Neon offers the [Agent Plan](https://neon.com/docs/introduction/agent-plan). It includes a sponsored free organization (Neon covers infrastructure for end users on your free offering), a paid organization at $0.106/CU-hour with up to $25,000 in initial credits, unlimited projects (Neon incrementally raises your limit as you scale), and higher API rate limits. It requires an active Scale plan and approval.

**You don't need the Agent Plan to get started:**

Free, Launch, and Scale plans all expose the same API. The Agent Plan changes resource limits and pricing for platforms that run fleets of databases.

## How other managed Postgres services compare

- **Aurora Serverless v2** has API and CLI provisioning and supports [scale to zero through auto-pause](https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/aurora-serverless-v2-auto-pause.html) when the minimum capacity is 0 ACUs, on Aurora PostgreSQL 13.15+, 14.12+, 15.7+, or 16.3+. It also supports copy-on-write [cloning](https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/Aurora.Managing.Clone.html). After 15 copy-on-write clones, the next clone is a full copy.
- **RDS for Postgres** provisions one DB instance at a time with `aws rds create-db-instance`. There's no auto-pause and no copy-on-write clone, so an isolated per-task database means restoring a snapshot to a new instance.
- **Supabase** has a [Management API](https://supabase.com/docs/reference/api) for projects and branches. Each preview branch is a separate instance that starts from migrations and seed data (dashboard branches, in public alpha, can copy production data with the PITR add-on) and bills compute by the hour; Compute Credits don't apply to branching compute ([Supabase branching usage](https://supabase.com/docs/guides/platform/manage-your-usage/branching)). Projects on paid plans don't pause, and Free plan projects pause after a week of inactivity ([project pausing](https://supabase.com/docs/guides/platform/free-project-pausing)).

Vendor details verified on 2026-09-23 against the linked pages.

> **Build an agent on Neon**
>
> Read the AI agent integration guide for patterns like per-session branches, snapshots for checkpoints, and consumption metrics for usage-based billing.
>
> [Read the guide](https://neon.com/docs/guides/ai-agent-integration)

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