# HOA Power Tools > Practical tools for the people who administer community associations: dues > increases, special assessments, meeting quorum, maintenance calendars, resident > letters, and questions answered from an association's own governing documents. > Every tool is usable by a person in a browser and by an agent over HTTP or MCP. Figures are exact arithmetic in decimal, never a model's estimate. Anything a model drafts is a starting point for a person to review — this is not legal advice, and nothing is ever sent to a resident on anyone's behalf. 4 operations run with no credential at all: `dues_increase.calculate`, `special_assessment.calculate`, `maintenance_calendar.build`, `meeting_quorum.calculate`. The rest need an API key from https://tools.rodri.ai/account and spend that account's allowance. Every page is available as markdown by appending `.md` to its path. ## Tools - [Difficult Resident Reply Builder](https://tools.rodri.ai/tools/resident-reply.md): Turn a difficult message into a clear, respectful reply with a real next step, ready for you to review. - [Conversation to Action List](https://tools.rodri.ai/tools/conversation-actions.md): Paste a long email chain or group thread and get back the issues, who owns what, and what is still unanswered. - [Dues Increase Calculator and Explainer](https://tools.rodri.ai/tools/dues-increase.md): Work out how a proposed budget changes monthly dues, and explain it in language residents understand. - [Ask Your HOA Documents](https://tools.rodri.ai/tools/hoa-documents.md): Find the answer in your community's documents, and see exactly where it comes from. - [Board Meeting Minutes Builder](https://tools.rodri.ai/tools/board-minutes.md): Turn meeting notes into a clear draft your board can review, with the gaps marked. - [Vendor Bid Comparison](https://tools.rodri.ai/tools/vendor-bids.md): See what each quote includes, what it leaves out, and what you still need to ask. - [Special Assessment Calculator](https://tools.rodri.ai/tools/special-assessment.md): Turn a project cost into a clear funding gap and payment options per home. - [Resident Notice Generator](https://tools.rodri.ai/tools/resident-notice.md): Enter the facts once. Get a clear notice for email, messaging, and the notice board. - [HOA Maintenance Calendar Builder](https://tools.rodri.ai/tools/maintenance-calendar.md): Build a practical year of maintenance planning, then adjust it to your community. - [Meeting Quorum & Participation Calculator](https://tools.rodri.ai/tools/meeting-quorum.md): See whether the participation you entered reaches your rule, and how much more is needed. - [Resale Certificate Builder](https://tools.rodri.ai/tools/resale-certificate.md): Prepare and check a resale certificate package, and see exactly what is missing, stale or contradictory before anyone signs it. ## Agent interface - [Agent guide](https://tools.rodri.ai/agents.md): how to authenticate, run an operation, and read an error - [Tool catalogue as JSON](https://tools.rodri.ai/api/agent/catalogue): every operation with its JSON Schema - [MCP endpoint](https://tools.rodri.ai/api/mcp): Streamable HTTP, stateless, same credentials - [Agent skills](https://tools.rodri.ai/.well-known/skills/index.json): one skill per tool, in the Agent Skills format ## About These are the authoritative pages rather than markdown copies of them: a second rendering of a privacy notice is a second thing to keep true. - [How it works](https://tools.rodri.ai/how-it-works): what the tools do and do not do - [Privacy](https://tools.rodri.ai/privacy): what is stored, for how long, and what never reaches analytics - [Terms](https://tools.rodri.ai/terms) ## Optional - [Suggest a tool](https://tools.rodri.ai/ideas): what to do when no tool here fits