Biel.ai

Biel.ai is an AI tool for technical documentation, aimed at products whose customers rely on docs that need to be accurate. It is built for teams that want documentation search, an internal AI assistant, and a RAG platform rather than a generic chatbot.

Its core functions are described as AI-powered documentation search and an AI chatbot for internal knowledge. Biel parses OpenAPI specifications, code blocks, configuration examples, and error messages as structured information, then answers in the user’s words rather than returning only the page. It also surfaces unanswered questions as content gaps, showing what users tried to find and which pages may need work.

The product is described as fitting teams whose docs are the product, especially where customers read documentation to do their job, support teams see the same questions repeatedly, docs live in more than one place, and hallucinated answers are not acceptable. Delivery includes an embeddable widget for docs sites, native Slack, Discord, and Microsoft Teams apps, and access from Claude, Cursor, Copilot, Windsurf, and any MCP-compatible tool. It also offers a production REST API with an OpenAPI 3.0 spec, real auth, and rate limits, and it can be dropped into Docusaurus, MkDocs, Sphinx, or any HTML site.

Biel.ai offers a 14-day free trial with no credit card required, self-serve setup, and plans that scale as docs grow. The site also states that it is an AI for technical documentation, a RAG platform, and a tool with APIs and MCPs for enterprise RAG.