# Next Level Builders > A builder community and directory of human-reviewed software. Listings and rankings use published content and organic votes. ## Documentation - [Build with Us](https://nextlevelbuilder.io/build-with-us.md): Published directory and builder workflow. - [Builder instructions](https://nextlevelbuilder.io/build-with-us/instructions.md): Product documents, submission and agent integrations. - [REST API reference](https://nextlevelbuilder.io/api-docs.md): Endpoints, authentication and schemas. - [Policies](https://nextlevelbuilder.io/policies.md): Community and publication rules. - [Full content](https://nextlevelbuilder.io/llms-full.txt): Full public pages and approved product documents, including every block. ## Languages and access Vietnamese is unprefixed; English pages use /en. Append .md to any page URL (/.md for the home page). Private Markdown pages preserve sign-in and organization permissions and are never publicly cached. ## Published products - [AgentKit](https://nextlevelbuilder.io/products/agentkit.md): Build your AI engineering system on a battle-tested foundation of agents, skills, and workflows. (Trust Score: 62/100)