MCP Servers

lease-qa-mcp

MCP server exposing lease Q&A via the lease_qa tool, querying a LeaseClear API to return grounded answers about specific lease documents.

README

lease-qa-mcp

A standalone MCP server that exposes lease Q&A as one tool: lease_qa. It asks LeaseClear a question about a specific lease document and returns a grounded answer.

Runs where your data lives

This server is a thin stdio process. Point LEASECLEAR_BASE_URL at a LeaseClear instance on your machine or private network — documents stay in that environment. Nothing here hosts or uploads leases.

Install

Requires Python 3.12+ and uv.

git clone https://github.com/amadeuserras/lease-qa-mcp.git
cd lease-qa-mcp
uv sync

Configure

cp .env.example .env

Variable	Required	Meaning
`LEASECLEAR_BASE_URL`	yes	Base URL of a running LeaseClear API (e.g. `http://localhost:8001`)

LeaseClear must be up and demo-auth seeded — this server uses /auth/demo, then streams /query.

Run

uv run lease-qa-mcp

That starts the MCP server on stdio (how Cursor, Claude Desktop, and other MCP hosts talk to it).

Cursor / Claude Desktop example

{
  "mcpServers": {
    "lease-qa": {
      "command": "uv",
      "args": ["run", "--directory", "/absolute/path/to/lease-qa-mcp", "lease-qa-mcp"],
      "env": {
        "LEASECLEAR_BASE_URL": "http://localhost:8001"
      }
    }
  }
}

Tool: `lease_qa`


Arguments	`question` (string) — one neutral question about lease terms
Metadata	`document_id` (UUID) — which lease to query; not an LLM-visible argument
Returns	`{ "answer": "..." }` — LeaseClear’s grounded answer (or that the lease is silent)

document_id is passed in request metadata on purpose. The model only chooses the question; the host chooses which document is in scope. That keeps untrusted text from picking another tenant’s lease.

Errors

Failures surface as MCP tool errors, including:

missing / invalid document_id in metadata
empty question
LeaseClear auth or query failures
LeaseClear unreachable

Development

uv run ruff check .
uv run pyright

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