Faireplace Public MCP Server

FairePlace — Public MCP Server 🏠🇫🇷

A public, no-auth, remote MCP server that exposes FairePlace's free French residential rental tools to AI agents (ChatGPT, Claude, Perplexity, Cursor…): create & e-sign a lease (bail), check rent control, revise rent (IRL), compute a security deposit or rental yield, get an address risk report, and generate rental documents (rent receipts, inventory, notices, and more).

Zero LLM inference server-side. The server is a thin, deterministic proxy over FairePlace's public API — the calling agent pays for its own inference; FairePlace only runs Rust/Typst logic. Marginal cost ≈ 0.

Endpoint: https://mcp.faireplace.com/mcp · Registry: com.faireplace/public-tools

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Quick start

Add the remote server to any MCP client:

No API key, no account. Ask your agent things like "Check if a 1500 €/month rent is legal at 75001 Paris for a 45 m² 2-room" or "Create a furnished lease for a flat in Paris at 850 €".

Tools (21)

Data & compliance (return JSON):

Lease creation (the conversion tool):

Document generation (return a link that renders the PDF): generate_quittance, generate_etat_des_lieux, generate_conge, generate_cautionnement, generate_avenant, generate_resiliation_amiable, generate_relance_impaye, generate_inventaire_mobilier, generate_notice_information, generate_reparations_locatives, generate_grille_vetuste, generate_charges_recuperables, generate_bordereau_restitution.

How the lease → signature flow works

agent → create_lease_draft(owner, logement, lease)
      → FairePlace stores an anonymous draft, returns draft_token
      → tool returns  https://mcp.faireplace.com/r?draft_token=…
user clicks the link
      → GET /r sets the draft_token cookie on .faireplace.com, 302 → app sign-up
      → on login, FairePlace ingests the draft and opens it on the Signature step

The server never hands back a signable document — signature stays behind FairePlace auth. Every link carries utm_source=mcp for attribution.

Architecture

Intentionally a thin adapter — not a domain application. All business logic (rent-control data, IRL indices, legal document rendering) lives in FairePlace's Rust backend; this Worker only maps MCP tool calls to the public /public/tools/* HTTP endpoints and formats results.

• Runtime: Cloudflare Worker (McpAgent, Durable Object for session state).
• Transport: Streamable HTTP on /mcp.
• Guardrail: native per-IP rate limit (100 req / 60 s).
• PDF delivery: /pdf/<slug>?p=<base64url payload> serves an HTML page that fetches the PDF browser-side (avoids a same-zone Worker→origin block; no storage — the PDF is a local blob).

Endpoints

Development

npm install
npm run typecheck
npm run dev            # wrangler dev (local)
npm run inspect        # MCP Inspector
npm run deploy         # wrangler deploy (needs Cloudflare auth)

Config lives in wrangler.jsonc (vars: API_BASE, WEB_BASE, SELF_BASE, DRAFT_REPRISE_URL, APP_SIGNUP_URL).

Discoverability

• Official MCP Registry: com.faireplace/public-tools
• Glama: connector com.faireplace/public-tools

License

MIT © 2026 FairePlace (Thinkylab SAS). Not legal advice — an aid for French rental workflows.