# bisibility > Open-source keyword rank tracking with a public REST API and agent tool metadata. bisibility tracks Google keyword positions using bring-your-own SERP provider credentials. Agents can inspect the API, create keywords, run rank checks, and read check results. This is the site and agent entry point. The machine-readable API capability summary lives at /api/v1/llms.txt. ## Links - [Developer docs](https://bisibility.com/docs): API, SDK, CLI, MCP, and agents - [AI agents guide](https://bisibility.com/docs/agents): Agent Skills, MCP, and discovery endpoints - [OpenAPI](https://bisibility.com/api/v1/openapi.json): REST API schema - [Capabilities](https://bisibility.com/api/v1/capabilities): agent tool list - [API capability summary](https://bisibility.com/api/v1/llms.txt): machine-readable API tool list - [Agent Skills index](https://bisibility.com/.well-known/agent-skills/index.json): installable tool references and task workflows - [MCP server card](https://bisibility.com/.well-known/mcp/server-card.json): MCP endpoint and tools - [Quickstart](https://bisibility.com/#quickstart): self-hosting and API setup - [Roadmap](https://bisibility.com/roadmap): planned product scope ## SEO knowledge - [Glossary](https://bisibility.com/glossary): definitions for rank tracking, SERP features, AI search, and BYO providers - [Rank tracking](https://bisibility.com/glossary/rank-tracking): core term - [Self-hosted SEO](https://bisibility.com/glossary/self-hosted-seo): owned infrastructure term - [BYO provider](https://bisibility.com/glossary/byo-provider): provider-key ownership term - [AI Overview](https://bisibility.com/glossary/ai-overview): AI-search term - [AI Mode](https://bisibility.com/glossary/ai-mode): AI-search term - [LLM citation](https://bisibility.com/glossary/llm-citation): AI answer-source term - [FAQ](https://bisibility.com/faq): plain answers about scope, data, and providers - [Alternatives hub](https://bisibility.com/alternatives): comparison and decision pages - [Rank tracking cost calculator](https://bisibility.com/rank-tracking-cost-calculator): provider-spend estimate tool - [How to choose the first keywords to track](https://bisibility.com/blog/how-to-choose-first-keywords-to-track): blog post - [SEO playbook](https://bisibility.com/seo-playbook): stages for owned rank visibility