tenantcloud-client-ts

TypeScript client library and MCP server for TenantCloud, a rental property management platform. A port of yllibed/TenantCloudClient (C#/.NET), extended well beyond parity.

This is not an official TenantCloud product. TenantCloud does not provide a public API; this library works against their internal endpoints and can break whenever TenantCloud changes their frontend. Use at your own risk.

Packages

Related MCP server: Buildium MCP Server

Quick start

Client library

npm install tenantcloud-client

import { TcClient, SecureTokenStore } from "tenantcloud-client";
import { CdpTokenProvider } from "tenantcloud-client/cdp";

const provider = new CdpTokenProvider({
  tokenStore: new SecureTokenStore(),
  allowInteractiveLogin: true,
});
const tc = new TcClient(provider);

// Reads with fluent filters
const user = await tc.getUserInfo();
const tenants = await tc.contacts.onlyTenants().getAll();
const overdue = await tc.transactions.forCategory("income").forStatus("with_balance").getAll();

// Typed sub-clients
const threads = await tc.messaging.threads("tenant");
await tc.messaging.sendMessage(threads.items[0].id, "Hi!");
const request = await tc.maintenance.create({ title: "Leaky faucet", property_id: 123 });

// First contact with a lead (creates their message thread)
const thread = await tc.leasing.openLeadThread(leadId);
await tc.messaging.sendMessage(thread.id, "Thanks for your interest!");

// Any other endpoint via generic JSON:API CRUD
const tasks = tc.resource("/tasks", "task");
await tasks.create({ title: "Call plumber" });

MCP server

One command (needs Node 20+):

npx tc-mcp install claude-code   # or: claude-desktop

Restart Claude Code and ask things like "who owes rent?", "message the lead who inquired yesterday", or "create a maintenance request for unit 3B". The first time, the agent notices you are not signed in and offers to open a TenantCloud sign-in window (normal password + 2FA); tokens go to your OS credential store. To sign in ahead of time instead: npx tc-mcp login.

Hosted server (Claude on web, teams)

For teammates on claude.ai, tc-mcp serve runs a multi-user remote server: OAuth 2.1 in front (claude.ai custom connector flow, email + invite code), an encrypted per-user TenantCloud token vault in Postgres, and per-person pairing via tc-mcp login --remote. Each teammate's tool calls run under their own TenantCloud account and permissions.

Each company hosts its own instance (fork or clone this repo - there is no shared multi-company server by design). Step-by-step Railway guide, including CLI commands and troubleshooting: docs/DEPLOY_RAILWAY.md.

MCP tools

68 tools across seven areas, plus resources tc://guide, tc://catalog, tc://property/{id}, tc://unit/{id}, tc://contact/{id}:

• Core reads: get_user_info, list_contacts, list_properties, list_units, list_transactions, list_leases

• Messaging: list_message_channels, list_threads, find_threads, list_messages, send_message, message_lead (first contact with a lead: creates their thread and sends in one step), mark_thread_read

• Maintenance: list_maintenance_requests, get_maintenance_request, create_maintenance_request, update_maintenance_request, resolve_maintenance_request, list_inspections

• Financials: get_transaction_statistics, create_transaction, update_transaction, delete_transaction, list_recurring_transactions, list_payments, list_reconciliation_accounts, owner_balances

• Leasing: get_lease, update_lease, list_lease_notices, list_applications, list_screenings, list_leads, create_lead

• Portfolio: list_property_keys, create_property_key, update_property_key, delete_property_key (Keys & Locks - door/lockbox codes); list_equipment, create_equipment, update_equipment, delete_equipment

• Escape hatch: tc_request (any of the ~1100 cataloged endpoints; see tc://catalog)

Tool responses resolve foreign-key IDs to human-readable names via an entity cache, and messenger payloads are slimmed so they fit agent context windows.

How authentication works

TenantCloud has no OAuth or API keys. The CDP token provider:

1. Returns the in-memory token if its JWT is still valid

2. Loads from the token store, refreshing via POST /auth/token if expired

3. Connects to a running Chromium browser (debug port 9222) and extracts access_token/fingerprint from localStorage and the tc_refresh_token cookie of an app.tenantcloud.com tab

4. If allowed, launches a temporary browser window for interactive login and polls until you finish signing in

Development

npm install
npm run build      # tsc --build for both packages
npm test           # vitest (unit + MCP in-memory transport tests)
TC_AUTH_TOKEN=<jwt> npm test   # also runs live API integration tests

See SPEC.md for design decisions and the documented internal API surface (~1100 endpoints, discovered from the SPA bundle; full list in docs/api-catalog.txt).

License

MIT. Portions derived from yllibed/TenantCloudClient, copyright Carl de Billy, MIT.