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Average Ratings 0 Ratings

Total
ease
features
design
support

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Write a Review

Description

21st is a development platform designed to help engineers quickly build and deploy AI agents inside their applications. The platform provides a specialized SDK that simplifies the process of defining agent behavior, integrating tools, and connecting AI models. Developers can create agents using familiar technologies such as Next.js, React, TypeScript, Python, and Node.js, making integration straightforward for modern applications. Once an agent is defined, the platform allows it to be deployed with a single command while automatically handling infrastructure requirements. 21st provides sandboxed execution environments through E2B sessions, ensuring that agent operations run securely and independently. The platform includes a ready-to-use chat interface component that can be embedded directly into an app for user interaction. Additional features include token streaming, conversation history, tool execution, and built-in observability for debugging and monitoring. Developers can replay sessions and trace tool calls to better understand how agents behave during execution. The system also supports spend limits, authentication controls, and rate limiting to manage AI usage across users. By combining development tools with managed infrastructure, 21st helps teams launch scalable AI agents without building complex backend systems.

Description

CreateOS Sandbox serves as a cloud-based computing solution designed specifically for developers focused on creating AI agents, code-execution environments, and various developer utilities. The service utilizes isolated Firecracker micro-virtual machines that each operate under their own Linux kernel, allowing teams to securely execute untrusted code or code generated by models. Developers have the flexibility to set up environments via a TypeScript SDK, command-line interface, MCP tools, or REST API, enabling them to run commands and establish connections between sandboxes within private networks. These sandboxes can easily be paused and resumed while maintaining the guest state, are customizable using reusable templates, and can be integrated with customer-owned storage solutions such as Amazon S3, MinIO, or Cloudflare R2. It's important to note that usage is charged per second based on compute, memory, and disk space, with paused environments still accruing costs for memory and storage. The service is available in both EU and US regions, and there is an enterprise option that allows for deployment on the customer's own infrastructure, enhancing flexibility and control for businesses. Overall, CreateOS Sandbox presents a robust platform that caters to the needs of modern developers.

API Access

Has API No 

API Access

Has API Yes 

Screenshots View All

Screenshots View All

No images available

Integrations

Amazon S3 No 
Cloudflare R2 No 
Grok Bot Yes 
MinIO No 
Model Context Protocol (MCP) No 
React Yes 
Tailwind CSS Yes 
shadcn/ui Yes 

Integrations

Amazon S3 Yes 
Cloudflare R2 Yes 
Grok Bot No 
MinIO Yes 
Model Context Protocol (MCP) Yes 
React No 
Tailwind CSS No 
shadcn/ui No 

Pricing Details

Free
Free Trial No 
Free Version Yes 

Pricing Details

$0.03616363/vCPU/hour
Usage is billed per second: $0.03616363 per vCPU-hour, $0.01159025 per GiB-RAM-hour, and $0.0001584 per GB-hour of storage. There are no egress fees or minimums. Paused sandboxes incur memory and storage charges, but no vCPU charge. New accounts receive 500 free credits.
Free Trial No 
Free Version Yes 

Deployment

Web-Based Yes 
On-Premises No 
iPhone App No 
iPad App No 
Android App No 
Windows No 
Mac No 
Linux No 
Chromebook No 

Deployment

Web-Based Yes 
On-Premises Yes 
iPhone App No 
iPad App No 
Android App No 
Windows No 
Mac No 
Linux No 
Chromebook No 

Customer Support

Business Hours No 
Live Rep (24/7) No 
Online Support Yes 

Customer Support

Business Hours No 
Live Rep (24/7) No 
Online Support Yes 

Types of Training

Training Docs Yes 
Webinars No 
Live Training (Online) No 
In Person No 

Types of Training

Training Docs Yes 
Webinars No 
Live Training (Online) No 
In Person No 

Vendor Details

Company Name

21st.dev

Website

21st.dev/

Vendor Details

Company Name

NodeOps

Founded

2023

Country

United States

Website

createos.sh/products/sandbox

Product Features

Product Features

Alternatives

Alternatives