Is Bucky Plugin free?

Yes, Bucky Plugin is free to use.

How do I install Bucky Plugin?

Bucky Plugin is a remote plugin. You do not need to install anything locally. Add the server URL to your AI app's MCP configuration and you are ready to go.

Is Bucky Plugin safe to use?

Yes. Bucky Plugin passed MCP Marketplace's automated security scan with a score of 10/10 (low risk). Every server on MCP Marketplace is security-scanned before it's listed; see the full security report on this page for the findings and permissions.

What AI apps work with Bucky Plugin?

Bucky Plugin uses the Model Context Protocol (MCP) and works with any MCP-compatible AI app, including Claude, ChatGPT / Codex, Gemini, Copilot, Cursor, and more.

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Bucky Plugin MCP Server

by Markbucky

Developer ToolsLow Risk10.0MCP RegistryRemote

Free

Server data from the Official MCP Registry

Zoning, parcel, and development feasibility for a street address in Canada and the US.

About

Zoning, parcel, and development feasibility for a street address in Canada and the US.

Remote endpoints: streamable-http: https://buckybuild.com/api/mcp

Security Report

10.0

Low Risk10.0Low Risk

Valid MCP server (1 strong, 1 medium validity signals). No known CVEs in dependencies. Imported from the Official MCP Registry.

11 tools verified · Open access · No issues found

Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.

Permissions Found in Source Code

Found by scanning the linked source code. This listing connects to a hosted endpoint, so none of this runs on your machine: it describes what the server software does where it is hosted.

HTTP Network Access

Connects to external APIs or services over the internet.

How to Connect

Remote Plugin

No local installation needed. Your AI client connects to the remote endpoint directly.

Add this to your MCP configuration to connect:

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

Documentation

View on GitHub

From the project's GitHub README.

Bucky

Cited site feasibility and pre-development project workflows for Canada and the United States, as a plugin and a hosted MCP server.

Give it a street address and it returns the lot, the zone, the permitted uses, and the material envelope — setbacks, height, coverage, density — with each value carrying its own provenance. A setback the bylaw does not limit and a setback Bucky could not extract are different answers, and they stay different.

https://buckybuild.com/api/mcp

Docs: https://docs.buckybuild.com/docs/mcp

Install

Claude Code

/plugin marketplace add markbucky/bucky-plugin
/plugin install bucky@bucky

Or the connector alone, without the skills:

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

Claude (web and desktop)

Settings → Connectors → Add custom connector, and paste the URL above. Needs a paid plan.

Cursor

Add Bucky to Cursor

VS Code

Add Bucky to VS Code

Codex

~/.codex/config.toml:

[mcp_servers.bucky]
url = "https://buckybuild.com/api/mcp"

Then codex mcp login bucky.

ChatGPT and Grok

Add as a custom connector in ChatGPT's developer-mode Connectors settings, or at grok.com/connectors → New Connector → Custom.

Anything else

Any Streamable HTTP client takes the same object:

{ "type": "http", "url": "https://buckybuild.com/api/mcp" }

What is in the plugin

Four skills, and one MCP connector:

Skill	For
`site-feasibility`	Zoning, lot, setback, and height lookup for one address
`save-and-analyze-project`	Save a site, attach its parcel, run analysis
`project-report`	Prepare and export a cited report
`explain-feasibility-status`	Interpret a coverage or provenance status

Authentication

Two tools work with no account, so you can confirm the connection before signing in: getBuckyMcpGuide and explainFeasibilityStatus.

Everything else uses Bucky's OAuth browser flow. You never paste a token. Connected apps are listed at Settings → Connected apps, with what each can do and when it was last used; disconnecting takes effect on the next request rather than whenever a token expires.

Account-scoped tools need a Professional plan or prepaid developer credit.

Limits

Coverage varies by jurisdiction. Results are preliminary decision support — not a permit, an appraisal, a guarantee, or a legal, engineering, or architectural opinion.

Contributing

This repo is a mirror. The source of truth is Bucky's monorepo, and changes made here are overwritten on the next sync. Open an issue rather than a pull request, or send feedback through the submitBuckyFeedback tool — it goes to a human.

License

Apache-2.0. See LICENSE.

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