Bucky

Connect it to your AI

Claude Code

claude mcp add --transport http bucky https://buckybuild.com/api/mcp

Claude, ChatGPT, Cursor and other apps

Add it as a custom connector with this URL (Streamable HTTP):

https://buckybuild.com/api/mcp

Cursor, VS Code and other apps (mcp.json)

{
  "mcpServers": {
    "bucky": {
      "url": "https://buckybuild.com/api/mcp"
    }
  }
}

Tools it offers

26 tools, as the server itself reported during our check on Oct 31, 2026.

• getBuckyMcpGuideCall with no arguments on first contact. Optional `role`, `market`, and `scale` answer the first-call questions on a second call. Returns what this session should do next.
• explainFeasibilityStatusExplain one Bucky coverage or per-fact provenance status and the safe next action. This is a pure static lookup: it does not inspect an address, retrieve property data, or call a database, geocoder, AI model, or third-pa
• getFeasibilitySnapshotLook up lot, zone, and building envelope for one street address in Canada or the US. Pass `address`. One address per call; cannot search or compare. A live answer uses one site lookup from the monthly plan allowance; `us
• getBylawSectionReturn the stored bylaw section text behind a snapshot citation. Pass `sectionIds` copied from `citations.*.knowledgeSectionId` on getFeasibilitySnapshot. Or pass `geoDivisionId` from `coverage.geoDivisionId`, `zoneCode`
• screenLotsFind the lots in one live Bucky city that match a list. Pass `city` or `geoDivisionId` with `thesis` (plain words), `criteria` (square feet, dollars), or both; or pass a saved `profileId`. Returns countOutcome (exact, pa
• findPlacesByMarketFind which places to look at by their rental market: filter and rank the places Bucky sells (reviewed catalogue places) on market facts and signals. Signed-in only; read scope. Pass `country` (CA has data today) and a `p
• listSavedList the signed-in user’s saved lots and projects. Returns at most limit rows (default 50, maximum 200), with folder ids and project stages. Use folderId to read one private folder. Copy a lot entry’s id as savedLotId wh
• saveLotSave one parcel by lotId without creating a project or running analysis. Copy lotId from a screenLots lot or assembly lot. Saving it again keeps the same save. Use preview=true first to inspect the request without writin
• unsaveLotUnsave one parcel by lotId. This also removes that saved lot from every folder. Projects are kept. Use preview=true first; this MCP tool does not provide Undo.
• listSavedFoldersList the signed-in user’s private folders, most recently used first, with item counts. Returns at most limit rows (default 50, maximum 200). Folders can contain saved lots and projects from different places.
• createSavedFolderCreate a named private folder. A repeated create makes another folder. Use preview=true first and listSavedFolders to check an uncertain outcome before retrying.
• renameSavedFolderRename a private folder by folderId. Pass name and use preview=true first to inspect the request without writing.
• deleteSavedFolderDelete a private folder by folderId and remove its memberships. Its lots stay saved and its projects are kept. Use preview=true first; this MCP tool does not restore deleted folders.
• addSavedFolderItemAdd exactly one saved lot or project to a private folder. Pass folderId and target with savedLotId (a save id from listSaved) or projectId. Repeating the same membership is safe. Use preview=true first.
• removeSavedFolderItemRemove exactly one saved lot or project from a private folder. Pass folderId and target with savedLotId or projectId. The lot stays saved and the project is kept. Use preview=true first.
• proposeResultFlagsSuggest that results of one saved search are not a fit, for the user to confirm or reject on the result row. Signed-in only; write scope. Pass `profileId` and 1–25 `proposals` { lotId, reasonCode, evidence }. `lotId` com
• runFeasibilityAnalysisEnqueue a fresh deterministic analysis run for a saved project. Pass `projectId`, or `project` with the name the user said; with neither, the result lists their projects and nothing is queued. Returns immediately with `a
• getProjectContextLoad one project with analysis envelope, compact agentStatus, document summaries, evidence summaries, the project memory digest, and external_ref when the project was imported from another system. Pass `include` for opti
• saveToProjectCreate a project (`create`), attach lots (`attach_parcels`), or attach a knowledge reference (`attach_reference`). Pass `projectId` or `project`; with neither, the result lists projects and writes nothing. For attach_par
• updateProjectPatch project metadata (name, lifecycle status, externalRef). Pass `projectId`, or `project` with the name the user said; with neither, the result lists their projects and nothing is written. preview=true returns the fie
• setProjectMapListingPut a project on the public Bucky map, or take it off. Pass `projectId`, or `project` with the name the user said; with neither, the result lists their projects and nothing is published. Listing publishes the build-lot c
• produceProjectReportCompose a project report PDF. Pass `projectId` or `project`; with neither, the result lists projects and no meter is spent. preview=true composes without spending. confirm=true exports, spends records.exports, and is irr
• submitBuckyFeedbackOpen a human-reviewed feedback form and submit it to the Bucky product team. Call only when the user explicitly asks to send feedback, report a problem, suggest an improvement, or praise something. The server asks the MC
• previewSiteCoverageFree preview, no sign-in needed. For one street address in Canada or the US, it says whether Bucky covers the place and which zoning facts it holds for the lot (lot boundary, zone, height, density, setbacks, permitted us
• cityInventoryPublic city catalogue inventory. Pass exactly one of: cityName, lat and lng together, or geoDivisionId. A city name with multiple matches returns choices; after the user chooses, call again with that candidate geoDivisio
• uiGetAnalysisStatusReturn only the analysis `agentStatus` for a project. Cheap enough to poll. Used by the Bucky app view; the model should call getProjectContext instead.

Questions