Audience
Software developers, startups, and product teams that want a fast and scalable way to build and deploy AI agents inside their applications
About 21st
21st is a developer platform that provides the fastest way to add AI agents directly into applications. The platform offers an SDK that allows developers to define, deploy, and run AI agents with minimal infrastructure setup. Developers can integrate agents using popular frameworks such as Next.js, React, TypeScript, Python, and Node.js. 21st includes built-in features like chat interfaces, session history, tool execution, memory, and real-time streaming responses. The platform also manages backend components such as sandboxed execution environments, authentication, rate limits, and observability. With support for Claude Code and Codex runtimes, developers can build agents that interact with tools, files, and APIs securely. By handling infrastructure and deployment automatically, 21st enables teams to launch production-ready AI agents quickly.
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Pricing
Starting Price:
Free
Free Version:
Free Version available.
Integrations
Company Information
21st.dev
21st.dev/
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Product Details
Platforms Supported
Cloud
Training
Documentation
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