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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
Butterbase serves as a backend solution tailored specifically for vibe coders. By integrating it with Claude Code, Cursor, or Windsurf through MCP, users can effortlessly set up their database, authentication, storage, and APIs simply by using a natural language prompt—eliminating the need for SQL, complex configurations, or any prior backend expertise. This innovative approach streamlines the development process, making it accessible to a broader audience.
API Access
Has API
No
API Access
Has API
No
Integrations
Claude Code
No
Claude Desktop
No
Cline
No
Codex CLI
No
Cursor
No
Devin Desktop
No
GitHub Copilot
No
Kiro
No
Model Context Protocol (MCP)
No
React
Yes
Integrations
Claude Code
Yes
Claude Desktop
Yes
Cline
Yes
Codex CLI
Yes
Cursor
Yes
Devin Desktop
Yes
GitHub Copilot
Yes
Kiro
Yes
Model Context Protocol (MCP)
Yes
React
No
Pricing Details
Free
Free Trial
No
Free Version
Yes
Pricing Details
$0/month
Butterbase offers a free tier to get started with no credit card required. Scale to production with usage-based pricing as your app grows.
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
No
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
Yes
Live Training (Online)
No
In Person
No
Vendor Details
Company Name
21st.dev
Website
21st.dev/
Vendor Details
Company Name
Butterbase
Founded
2026
Country
United States
Website
butterbase.ai/