# Replit Agent

> Replit's AI agent that builds, runs, and deploys full-stack apps from a prompt inside the Replit cloud IDE.

Website: https://replit.com

Replit Agent is the AI builder inside Replit's browser-based cloud IDE. You describe an app in plain language and the agent scaffolds the project, writes the code, installs packages, runs the app, and can push it to a live URL — all without leaving the browser or configuring a local environment. The infrastructure (database, auth, hosting, monitoring) is provisioned for you, so a prompt can go from idea to deployed app in one session.

It is aimed at builders who want the whole loop — generation, execution, and hosting — in one place: founders prototyping a product, non-developers shipping internal tools, and developers who want a throwaway environment that is already wired up. The current generation ships as **Agent 4**.

## Highlights

- **Prompt to running app** — describe what you want and the agent generates a full-stack project, installs dependencies, and runs it so you can see it working immediately.
- **Built-in deployment and hosting** — publish to a live URL, attach a custom domain, and let Replit handle scaling, with auth and a PostgreSQL database available out of the box.
- **Design Canvas** — Agent 4 adds an infinite design board for tweaking layouts and UI visually while the agent builds other parts of the app concurrently; changes apply directly to the codebase.
- **Concurrent task execution** — Agent 4 splits work into independent forks that run in parallel (authentication, database, frontend), then merges the results, so complex apps build faster.
- **Checkpoints** — the agent works in reviewable steps you can roll back to, with effort-based billing per checkpoint (simple changes cost less; complex multi-step tasks are bundled into a single, proportionally priced checkpoint).
- **Integrations** — connect to external services (Stripe, OpenAI, Notion, Linear, and others) so generated apps can call real APIs through a credential-management UI rather than manual key pasting.

## In an AI-assisted workflow

Replit Agent fits the "zero to deployed" end of the spectrum, where you want infrastructure handled for you rather than editing files on your own machine. A typical loop is to prompt the agent for a first version, watch it build and run, then iterate in plain language and ship.

```text
Build a feedback board where users sign in, post ideas,
and upvote them. Use a Postgres table for ideas and votes,
then deploy it.
```

The agent scaffolds the app, provisions the database, runs it for review, and — once you confirm — publishes it to a live URL.

> [!TIP]
> Treat the first prompt like a spec: name the data model, the auth requirement, and whether you want it deployed. The more concrete the prompt, the fewer checkpoints the agent burns getting there.

## Good to know

Replit runs entirely in the browser (plus a mobile app), so there is nothing to install. Pricing is **freemium**: a free Starter tier includes limited daily Agent credits and lets you publish one project, while **Core** ($20/month billed annually, $25/month monthly) adds **$25 of monthly usage credits**, up to 5 collaborators, and two concurrent agents. **Pro** ($95/month annually, $100/month) raises credits to **$100/month**, supports up to 15 collaborators and 10 concurrent agents, and includes database rollbacks and priority support. **Enterprise** adds SSO/SAML, SCIM, VPC peering, and static outbound IPs on custom pricing.

> [!WARNING]
> Credits are a shared pool covering Agent runs, hosting, database compute, and data transfer — and on Core they expire each billing cycle rather than rolling over. Replit uses effort-based pricing per checkpoint: simple edits are cheap, but complex multi-component builds cost proportionally more, so real monthly spend depends heavily on how much you build and how ambitious your prompts are.

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_Source: https://agentscamp.com/tools/replit-agent — Tool on AgentsCamp._