Read properties, leases, payments, invoices, expenses and maintenance requests in Delfi PMS. Hosted by usefulapi: connect it to Claude, ChatGPT, Cursor or any MCP client.
Turn on the Delfi PMS connector, then ask in plain words. The AI picks the tools.
For landlords, owners and property managers who run rentals in Delfi PMS.
List the properties, then list the leases with their rent, dates and payment frequency. Open one lease to read its unit.
List payments by property, unit or tenant, with amounts, dates and status. List invoices with their line items.
List the expenses of one unit, with amounts, tax, due and payment dates and the supplier. Use the property expenses for the whole property.
List maintenance requests with their status, priority, property and unit. Open one request to read its description and images.
List the tenants and owners with the properties and units they rent or own. Open one record for its contact details. The records hold personal contact details.
The login page asks for your Workspace domain and Delfi API token.
The workspace domain is the address you open in the browser, for example yourcompany.delfipms.com. Create the token in your workspace under Settings → API Tokens. It acts with the permissions of the user who creates it. Your token is used only to call the Delfi API on your behalf.
Team and Enterprise: an Owner adds the connector for the organization first.
No Add custom MCP server option? It depends on your account or workspace settings: see OpenAI's guide.
Run this command, then run /mcp in Claude Code to log in:
Add to Cursor or add this to ~/.cursor/mcp.json:
{
"mcpServers": {
"delfi-pms": {
"url": "https://delfi-pms.usefulapi.io/mcp"
}
}
} Add to VS Code or add this to .vscode/mcp.json:
{
"servers": {
"delfi-pms": {
"type": "http",
"url": "https://delfi-pms.usefulapi.io/mcp"
}
}
} Run these commands. The second one opens the login page:
Windsurf, Cline, Zed and other MCP clients: add this URL as a remote MCP server (Streamable HTTP). The client then opens the login page in your browser.
Add only the URL. Do not add an Authorization header or an API key to the client config. The server signs you in with OAuth: the login page asks for your Workspace domain and Delfi API token. If the config has such a header, remove it: some clients then send that header instead of the login token, and every call fails with 401.
| Plan | Price | Limit |
|---|---|---|
| Free | $0 | 50 tool calls / month |
| Proper user | $9/mo · $90/yr | Unlimited* |
*Pro fair use limit: 10,000 tool calls a month on this server. For more, write to [email protected].
Pro covers this Delfi PMS server only. Subscribe with delfipms_upgrade (it returns a Stripe Checkout link). Cancel any time with delfipms_cancel_subscription: Pro continues to the end of the paid period, with no refund for the current period, and running delfipms_upgrade before then undoes the cancel. Or write to [email protected].
delfipms_list_propertiesdelfipms_list_unitsdelfipms_list_leasesdelfipms_get_leasedelfipms_list_paymentsdelfipms_get_paymentdelfipms_list_invoicesdelfipms_list_ownersdelfipms_get_ownerdelfipms_list_tenantsdelfipms_get_tenantdelfipms_list_property_expensesdelfipms_list_unit_expensesdelfipms_list_maintenancedelfipms_get_maintenancedelfipms_list_suppliersdelfipms_get_supplierdelfipms_usage_statusdelfipms_request_featuredelfipms_upgradedelfipms_cancel_subscriptionFind leases that end soon. Review payments and invoices. Check the expenses of a unit. Track maintenance requests. Find the tenant or owner of a unit. See what you can do for the details.
No. usefulapi is an independent service. It is not affiliated with or endorsed by Delfi PMS. The server calls the Delfi PMS API with your own Delfi PMS access, so it sees only the data that your account can see.
Yes. In Claude, add this server's URL as a custom connector. In ChatGPT, add it as a custom MCP server in Plugins. Then log in once. Cursor, VS Code, Claude Code and Codex work too. See the setup steps.
The login page asks for your Workspace domain and Delfi API token. See Before you connect for where to find them.
No. Add only the URL. Do not add an Authorization header or an API key to the client config. The server signs you in with OAuth: the login page asks for your Workspace domain and Delfi API token. If the config has such a header, remove it: some clients then send that header instead of the login token, and every call fails with 401.
The login stores them encrypted in the authorization grant of your connection. The server uses them to call the Delfi PMS API for you and to derive a private account id for usage metering. usefulapi does not show them on any page or in any reply. To stop all access, remove the connector and change or delete these credentials in Delfi PMS.
All 17 Delfi PMS tools are marked read-only.
The Free plan gives 50 tool calls / month. Pro costs $9/mo or $90/yr, with unlimited tool calls (fair use limit: 10,000 tool calls a month), for this Delfi PMS server only. Cancel any time: Pro then runs to the end of the paid period. Run delfipms_usage_status to see how many calls you used.
Ask the AI to run delfipms_upgrade: it returns a Stripe Checkout link. To cancel, run delfipms_cancel_subscription. Pro continues to the end of the paid period.
Tell the AI what you wanted to do. It can send the request with delfipms_request_feature. We store the text with the server name, the type of AI client and the tool you tried, not with your account, and read every request when we plan new tools. You can send up to 5 requests per day.
Any client that supports remote MCP servers (Streamable HTTP) with OAuth login: Claude (web and desktop), Claude Code, ChatGPT, Codex, Cursor, VS Code, Windsurf and others.
This is a Model Context Protocol endpoint — meant to be connected from an AI client, not opened in a browser. An invalid_token response at the URL is the auth gate working as designed; clients authenticate automatically.
Need a tool this server does not have, or a connection to another system? We build custom integrations and MCP servers.