# app.build: An Open-Source AI Agent That Builds Full-Stack Apps

DevFeed: [app.build: An Open-Source AI Agent That Builds Full-Stack Apps](<https://devfeed.tech/articles/app-build-an-open-source-ai-agent-that-builds-full-stack-apps-4981.md>)

Original publisher: [Read original article](<https://neon.com/blog/app-build-open-source-ai-agent>)

Author: David Gomes

Published: 2025-06-04T19:40:32Z

Content type: release

Language: en

Sources: [Blog -- Neon Docs](<https://devfeed.tech/sources/blog-neon-docs.md>)

Topics: [AI Agent](<https://devfeed.tech/topics/ai-agent.md>), [Open Source](<https://devfeed.tech/topics/open-source.md>), [AI-assisted coding](<https://devfeed.tech/topics/ai-assisted-coding.md>), [App](<https://devfeed.tech/topics/app.md>)

Tags: [agent](<https://devfeed.tech/tags/agent.md>), [ai](<https://devfeed.tech/tags/ai.md>), [ai-agent](<https://devfeed.tech/tags/ai-agent.md>), [code](<https://devfeed.tech/tags/code.md>), [code-generation](<https://devfeed.tech/tags/code-generation.md>), [company](<https://devfeed.tech/tags/company.md>), [full-stack](<https://devfeed.tech/tags/full-stack.md>), [github](<https://devfeed.tech/tags/github.md>), [open-source](<https://devfeed.tech/tags/open-source.md>), [product](<https://devfeed.tech/tags/product.md>)

## AI overview

Neon announces app.build, an open-source AI agent designed to build and deploy full-stack applications. The project iterates on generated code using feedback such as logs, test results, linters, and human comments, and supports end-to-end tests and automated deployments. The document also notes that the managed version was later discontinued while its source code remains available for reference.

## Source excerpt

Code generation has been one of the most interesting use cases for LLMs. While the best models can generate decent code for isolated problems, there is a big gap between these code snippets and fully functional applications. Agent-based solutions are better suited to create apps....