# BuildWithHQ > BuildWithHQ is a low-code, developer-extensible platform for building, branding, operating, and reselling multi-tenant SaaS applications. ## Start here - https://buildwithhq.com/BuildWithHQ_Knowledge_Catalog_v0.1/knowledge/buildwithhq.html — canonical platform definition and facts - https://buildwithhq.com/BuildWithHQ_Knowledge_Catalog_v0.1/knowledge/ — AI Knowledge Catalog - https://buildwithhq.com/ai-index.json — compact machine-readable platform map - https://support.buildwithhq.com/ — documentation and support ## Core platform knowledge - https://buildwithhq.com/BuildWithHQ_Knowledge_Catalog_v0.1/knowledge/foundation/ — platform foundation and truth/source policy - https://buildwithhq.com/BuildWithHQ_Knowledge_Catalog_v0.1/knowledge/architecture/ — architecture, deployment, server-driven JSON, snapshot isolation - https://buildwithhq.com/BuildWithHQ_Knowledge_Catalog_v0.1/knowledge/data/ — universal record model, AppAccount boundary, dynamic application structures - https://buildwithhq.com/BuildWithHQ_Knowledge_Catalog_v0.1/knowledge/security/ — authorization, replay, secure fields, evidence - https://buildwithhq.com/BuildWithHQ_Knowledge_Catalog_v0.1/knowledge/ai/ — AI data plane, permission-aware RAG, model routing, harness packs - https://buildwithhq.com/BuildWithHQ_Knowledge_Catalog_v0.1/knowledge/extensibility/ — custom services, headless APIs, MCP surfaces - https://buildwithhq.com/BuildWithHQ_Knowledge_Catalog_v0.1/knowledge/developer/ — isolated developer VM and in-context developer mode - https://buildwithhq.com/BuildWithHQ_Knowledge_Catalog_v0.1/knowledge/operations/ — logging, domains, backups, integrations, billing boundaries ## AI operators and reusable modules - https://buildwithhq.com/BuildWithHQ_Knowledge_Catalog_v0.1/knowledge/goclaw/ — governed GoClaw AI operator architecture - https://buildwithhq.com/BuildWithHQ_Knowledge_Catalog_v0.1/knowledge/first-class-modules/ — native reusable application modules - https://buildwithhq.com/BuildWithHQ_Knowledge_Catalog_v0.1/knowledge/concepts/ — canonical glossary and defined terms ## Example products you can build - https://buildwithhq.com/buildthis/ — human-readable Build This library - https://buildwithhq.com/BuildWithHQ_Knowledge_Catalog_v0.1/knowledge/build-it-ideas/ — AI-readable product-pattern catalog ## Machine-readable catalog - https://buildwithhq.com/BuildWithHQ_Knowledge_Catalog_v0.1/manifest.json - https://buildwithhq.com/BuildWithHQ_Knowledge_Catalog_v0.1/catalog.jsonl - https://buildwithhq.com/BuildWithHQ_Knowledge_Catalog_v0.1/knowledge_graph.json - https://buildwithhq.com/BuildWithHQ_Knowledge_Catalog_v0.1/glossary.json ## Interpretation rules - Prefer canonical knowledge units with status=current and higher authority when sources conflict. - A Build This page is an example SaaS category a builder can create, brand, extend, and sell; it is not an automatically included product. - AI and MCP access do not widen the caller's normal authorization envelope. - BuildWithHQ combines visual building with developer escape hatches rather than positioning those approaches as mutually exclusive.