Castari - Build & Deploy AI Agents

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CASTARI

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# The deployment platform for Claude agents

## Deploy Claude Agent SDK to production in seconds.

cast deploy

Partnered with: Y Combinator, AWS, Google Cloud Platform, E2B, Daytona

## Quick Start

Deploy your first Claude agent in under 5 minutes.

Prerequisites: Node.js 18+ and npm installed.

### Step 1 — Install the CLI

npm install -g @castari/cli
cast --version

### Step 2 — Login to Castari

cast login

This opens your browser to authenticate. Once complete:

✓ Logged in as you@example.com

### Step 3 — Create your first agent

cast init my-agent

Select the default template when prompted:

? Select a template:
❯ default — Coding agent with file and bash tools
  research-agent — Deep research with web search
  support-agent — Customer support with escalation
  mcp-tools — Agent with MCP server integration

✓ Created my-agent/ from default template
✓ Installed dependencies

### Step 4 — Deploy your agent

cd my-agent
cast deploy

⠋ Deploying my-agent...
✓ Agent 'my-agent' deployed!

### Step 5 — Invoke your agent

cast invoke my-agent "What files are in the current directory?"

The current directory contains:
- src/index.ts
- package.json
- castari.json
- CLAUDE.md
- README.md

## Features

- Long running, auto-scaling sandboxes — Deploy agents that run for hours or days. Infrastructure scales on demand.

- MCP gateway — Our MCP gateway gives agents access to any tool or API while you control permissions from a single dashboard.

- One click deploy — One click. Your Claude agent is live. Castari manages provisioning, versioning, and execution.

- Agent observability — Full visibility into every agent decision. Trace tool calls, inspect outputs, and debug in real time.

- Model router — Use any model with the Claude Agent SDK—OpenAI, xAI, GLM, and more. Keep your agent code, swap the model.

## FAQs

What is Castari?

Castari is a deployment platform for Claude Agent SDK agents. Import your project, run cast deploy, and your agent is live with auto-scaling, logging, and observability built in.

Do I need to modify my code?

No. Castari works with standard Claude Agent SDK code without modification. Zero vendor lock-in.

How do you handle security?

Every agent runs in an isolated sandbox environment with dedicated compute.

How much does it cost?

Free during public beta. Usage-based pricing after launch.

Which models are supported?

Any model with the Claude Agent SDK—Claude, OpenAI, xAI, open source, or any provider.

## llms.txt

- [API Reference](https://docs.castari.com/api-reference/introduction.md): Castari REST API documentation

- [cast agents](https://docs.castari.com/cli/agents.md): List and manage agents

- [cast apikey](https://docs.castari.com/cli/apikey.md): Manage API keys for authentication

- [cast buckets](https://docs.castari.com/cli/buckets.md): Manage cloud storage buckets

- [cast deploy](https://docs.castari.com/cli/deploy.md): Deploy an agent to Castari

- [cast files](https://docs.castari.com/cli/files.md): Manage files in Castari storage

- [cast init](https://docs.castari.com/cli/init.md): Create a new agent from a template

- [cast invoke](https://docs.castari.com/cli/invoke.md): Invoke a deployed agent

- [cast login](https://docs.castari.com/cli/login.md): Authenticate with Castari

- [cast mounts](https://docs.castari.com/cli/mounts.md): Mount storage buckets to agents

- [CLI Overview](https://docs.castari.com/cli/overview.md): The cast command-line interface

- [cast secrets](https://docs.castari.com/cli/secrets.md): Manage agent secrets and environment variables

- [cast sessions](https://docs.castari.com/cli/sessions.md): Manage agent sessions

- [cast stop](https://docs.castari.com/cli/stop.md): Stop a running agent

- [cast usage](https://docs.castari.com/cli/usage.md): View usage statistics

- [cast whoami](https://docs.castari.com/cli/whoami.md): Show current authenticated user

- [Agents](https://docs.castari.com/concepts/agents.md): What agents are and how they work

- [Managed Files](https://docs.castari.com/concepts/files.md): Simple file storage for agent data

- [How Castari Works](https://docs.castari.com/concepts/how-it-works.md): Architecture and key concepts

- [Invocations](https://docs.castari.com/concepts/invocations.md): How agent requests and responses work

- [Sandboxes](https://docs.castari.com/concepts/sandboxes.md): Isolated execution environments for agents

- [Secrets](https://docs.castari.com/concepts/secrets.md): Managing environment variables for agents

- [Your First Agent](https://docs.castari.com/first-agent.md): Understand agent structure and customize your first deployment

- [Best Practices](https://docs.castari.com/guides/best-practices.md): Guidelines for building production-ready agents

- [Claude Code Plugin](https://docs.castari.com/guides/claude-code.md): Deploy agents to Castari directly from Claude Code

- [Building Custom Agents](https://docs.castari.com/guides/custom-agents.md): Build agents from scratch with the Claude Agent SDK

- [Debugging Agents](https://docs.castari.com/guides/debugging.md): Troubleshooting tips and common issues

- [Working with Files](https://docs.castari.com/guides/files.md): Upload and attach files to agents

- [MCP Integration](https://docs.castari.com/guides/mcp.md): Using Model Context Protocol tools with agents

- [Using Templates](https://docs.castari.com/guides/templates.md): Start with pre-built agent templates

- [Introduction](https://docs.castari.com/index.md): Deploy Claude agents with one command

- [Installation](https://docs.castari.com/installation.md): Install the Castari CLI and SDK

- [Quick Start](https://docs.castari.com/quickstart.md): Deploy your first agent in under 5 minutes

- [Agents API](https://docs.castari.com/sdk/agents.md): Manage agents programmatically

- [Auth API](https://docs.castari.com/sdk/auth.md): Authentication and API key management

- [CastariClient](https://docs.castari.com/sdk/client.md): SDK client configuration and setup

- [Files API](https://docs.castari.com/sdk/files.md): Managed file storage for agents

- [Mounts API](https://docs.castari.com/sdk/mounts.md): Mount storage buckets to agent sandboxes

- [SDK Overview](https://docs.castari.com/sdk/overview.md): Use Castari programmatically with TypeScript

- [Secrets API](https://docs.castari.com/sdk/secrets.md): Manage agent secrets programmatically

- [Storage API](https://docs.castari.com/sdk/storage.md): Manage cloud storage buckets

- [Types](https://docs.castari.com/sdk/types.md): TypeScript interfaces and types

- [Usage API](https://docs.castari.com/sdk/usage.md): Query usage statistics and costs

- [GitHub](https://github.com/castari/cli)

[Get Started](https://app.castari.com)

[X](https://x.com/castari_dev) [LinkedIn](https://linkedin.com/company/castari) [GitHub](https://github.com/castari/cli) [Discord](https://discord.gg/JCBDGcn3kU) [Docs](https://docs.castari.com)

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