usefulapiBuildium MCP server
Read Buildium properties, units, leases, tenants, balances and bills; manage work orders. Hosted by usefulapi: connect it to Claude, ChatGPT, Cursor or any MCP client.
What can I ask?
Turn on the Buildium connector, then ask in plain words. The AI picks the tools.
- Which tenants currently owe rent, and how overdue are they?
- Which open work orders are high priority right now?
- List the leases for my properties and when each one ends.
- Which to-do tasks are still open and due this month?
What you can do with Buildium in Claude and ChatGPT
For property managers who run rentals and work orders in Buildium.
Find tenants who owe rent
The AI reads the outstanding balances report: total owed and the 0-30, 31-60, 61-90 and 90+ day buckets per lease. It adds the tenants from the lease and flags eviction-pending ones.
Check which leases end soon
The AI lists active leases for a property or owner and reads the dates, tenants and lease type. You get the leases to renew or fill, sorted by end date.
Review open work orders by priority
The AI lists work orders by status, priority, vendor, unit or due date. It shows what is high priority, overdue or not yet billed.
Create a work order for a vendor
The AI creates a work order for a vendor on an existing task, or with a new task. It can add line items with a quantity and an optional GL account.
Changes dataUpdate to-do tasks and work orders
The AI marks to-do tasks as completed or changes their priority, assignee or due date. It can also change a work order's details without losing its line items.
Changes dataHow do I connect Buildium?
Before you connect
The login page asks for your Client ID, Client secret and Environment.
An administrator first enables the API in Buildium → Settings → Application settings → Api settings (toggle Open API), then creates a key under Settings → Developer Tools → Create API Key, choosing which data it may read. The secret is shown only once, at creation. Keys are environment-bound: pick Sandbox for a sandbox account's key. Your credentials are used only to call the Buildium API on your behalf and to derive a private account id; they are never shown to anyone.
Claude claude.ai · Desktop
- Open Customize → Connectors, then click + Add → Add custom connector.
- Enter the name Buildium and this URL, then click Add:https://
buildium. usefulapi. io/ mcp - Claude opens the login page: enter your Client ID, Client secret and Environment.
- In a chat, click + → Connectors and turn on Buildium.
Team and Enterprise: an Owner adds the connector for the organization first.
ChatGPT chatgpt.com
- Open Plugins, click +, then Add custom MCP server.
- Enter the name Buildium and this URL, choose OAuth as the authentication, confirm the warning and create it:https://
buildium. usefulapi. io/ mcp - ChatGPT opens the login page: enter your Client ID, Client secret and Environment.
- In Plugins, install Buildium, then choose it in a chat.
No Add custom MCP server option? It depends on your account or workspace settings: see OpenAI's guide.
Claude Code
Run this command, then run /mcp in Claude Code to log in:
Cursor
Add to Cursor or add this to ~/.cursor/mcp.json:
{
"mcpServers": {
"buildium": {
"url": "https://buildium.usefulapi.io/mcp"
}
}
} VS Code
Add to VS Code or add this to .vscode/mcp.json:
{
"servers": {
"buildium": {
"type": "http",
"url": "https://buildium.usefulapi.io/mcp"
}
}
} Codex
Run these commands. The second one opens the login page:
Other clients
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 Client ID, Client secret and Environment. 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.
Guides
- Answer "what does this tenant owe?" from Buildium in Claude
Claude or ChatGPT can find a tenant in Buildium, read the lease ledger and explain the balance. The server only reads ledgers and never posts to them.
19 October 2026
Pricing
| Plan | Price | Limit |
|---|---|---|
| Free | $0 | 50 tool calls / month |
| Proper user | $9/mo · $90/yr | 10,000 tool calls / month |
| Pro+per user | $39/mo · $390/yr | 100,000 tool calls / month |
Each paid plan covers this Buildium server only. Ask your AI to run buildium_upgrade and choose Pro or Pro+, billed monthly or yearly (it returns a Stripe Checkout link). If you already have Pro, ask to change it to Pro+. The change requires your confirmation, keeps your billing interval and charges the price difference for the rest of the period immediately. Cancel any time with buildium_cancel_subscription: your paid plan continues to the end of the paid period, with no refund for the current period, and asking to resume the same plan with buildium_upgrade before then undoes the cancel. Or write to support@usefulapi.io.
Tools 27
Show all 27 tools (the AI picks them for you)
Read only · 19
- List rental properties
buildium_list_rental_propertiesList rental properties (buildings) with address, unit count, type/subtype and manager. Filter by location (city/state contains), type, subtype, status, rental owner or property ids. - Get a rental property
buildium_get_rental_propertyFetch one rental property by id. - List rental units
buildium_list_rental_unitsList rental units with unit number, bedrooms/bathrooms, size, market rent and whether each unit is listed or occupied. Filter by property. - Get a rental unit
buildium_get_rental_unitFetch one rental unit by id. - List rental owners
buildium_list_rental_ownersList rental owners (the landlords you manage for) with contact details, management-agreement dates and the property ids they own. - List leases
buildium_list_leasesList leases with unit, dates, lease type/status, current tenants, rent/deposit account details and eviction flag. Filter by property, owner, unit number, tenant name, dates, lease type or status (Active/Past/Future). Sort by a scalar returned lease field, e.g. LastUpdatedDateTime desc,Id asc or LeaseToDate asc,Id asc; nested fields, Name, Rent and LastUpdated are not supported. - Get a lease
buildium_get_leaseFetch one lease by id, including tenants, cosigners, account details and move-out data. - List lease outstanding balances
buildium_list_outstanding_balancesDelinquency report: leases that owe money, with aged buckets (0-30, 31-60, 61-90, 90+ days), total balance, past-due-email and eviction-pending dates. Leases with zero or credit balances are not returned. - List lease transactions
buildium_list_lease_transactionsRead a lease's ledger: charges, payments, credits, refunds, deposits and other transactions with date, type, total amount and journal lines. Read-only — this server never posts to a ledger. - List tenants
buildium_list_tenantsList rental tenants with contact details, emergency contact, address and leases. Filter by name, email, phone, unit number, property, owner, unit ids or lease term status. - Get a tenant
buildium_get_tenantFetch one rental tenant by id. - List applicants
buildium_list_applicantsList rental applicants with contact details, status and their applications. Filter by application status, unit, name, email, submission date or entity. - List work orders
buildium_list_work_ordersList work orders with title, status, priority, due date, vendor, amount, line items, linked task and bill ids. Filter by entity, status, priority, task type, unit, vendor, assignee, dates, amount, billed flag or title. Supply entity_type with entity_id (Rental for a property); statuses refer to the associated task. Dates must be YYYY-MM-DD, and each from value must be at most its to value. orderby accepts top-level work-order fields such as Id, DueDate, Title, Status or Amount, with optional asc/desc and comma-separated secondary fields. Include Id as a tie breaker for stable pagination. CreatedDateTime and LastUpdatedDateTime are not work-order fields. - Get a work order
buildium_get_work_orderFetch one work order by id. - List tasks
buildium_list_tasksList all tasks/requests — contact requests, resident requests, rental owner requests and to-dos — with category, property, unit, requester, assignee, status, priority and due date. - List vendors
buildium_list_vendorsList vendors (contractors, suppliers) with contact details, category, insurance and default expense GL account. Filter by name, email, phone, website, status or insurance expiration. - List bills
buildium_list_billsList vendor bills (accounts payable) with dates, memo, vendor, linked work order, reference number, approval status and lines. Read-only. paid_status is required: Buildium rejects a bill list without a paid filter. Open bills: paid_status Unpaid. Paid bills: paid_status Paid with paid_date_from and paid_date_to. All bills of a property: one call of each. paid_status Any sends no status filter and needs both paid dates (bills with a payment in that period). Supply entity_type with entity_id (Rental for a property). paid_date_from/to filter the payment date, not the bill or due date, and must be YYYY-MM-DD with from at most to; send both together. Keep each paid-date range to one year or less (Buildium rejected a two-year range); split a longer period into one call per year. For sorting use bill fields such as Date, DueDate, PaidDate or Id. - List general ledger accounts
buildium_list_gl_accountsList the chart of accounts: GL accounts with number, name, type/subtype, sub-accounts and bank/credit-card flags. Useful for finding the gl_account_id for work order line items. - List associations
buildium_list_associationsList community/HOA associations with address, manager, reserve, fiscal year and operating bank account.
Changes data · 4
- Create a work order
buildium_create_work_orderCreate a work order for a vendor. Attach it to an existing task (task_id) or create a new task with it (task: title, priority, status, assigned staff user, optional due date/property/unit). vendor_id and entry_allowed are required. Line items are optional (quantity x unit price, optional GL account). - Update a work order
buildium_update_work_orderUpdate a work order's details. Buildium's PUT replaces the whole record, so this reads the current work order first and only changes the fields you pass — everything else (including line items and entry contacts) is preserved. Passing line_items REPLACES all existing line items. Status/priority/due date live on the linked task. Buildium: GET then PUT /v1/workorders/{workOrderId}. - Create a to-do task
buildium_create_todo_taskCreate an internal to-do task assigned to a staff user, optionally tied to a property/unit and category, with a due date. - Update a to-do task
buildium_update_todo_taskUpdate a to-do task — change status (e.g. mark Completed), priority, assignee, due date, title or category, optionally with an update message. Buildium's PUT replaces the whole record, so this reads the current task first and only changes the fields you pass. Buildium: GET then PUT /v1/tasks/todorequests/{toDoTaskId}.
Your usefulapi plan · 4
- Usage status (free-tier meter)
buildium_usage_statusReport the caller's current usage: the plan, calls used this month, the limit of the plan (the free monthly cap or the Pro fair use limit), remaining, and whether the limit is reached. Read-only; does not count against the meter. - Request a missing feature
buildium_request_featureTell usefulapi that the user needs something the Buildium tools cannot do yet (a missing tool, field or filter). Call it only when the user asks for something none of the tools can do, and tell the user that you send the request. Do not call it for errors or for normal requests. Do not include personal data, credentials or customer records. Stored with the product name and the client type (for example Claude or Cursor), without the user's account. At most 5 requests per day. Does not count against the meter. - Upgrade to Pro or Pro+
buildium_upgradeGet a paid plan for Buildium (the free tier caps monthly usage). Pro: 10,000 tool calls a month, for normal use — plan "monthly" ($9/month) or "yearly" ($90/year, 2 months free). Pro+: 100,000 tool calls a month, for automations and heavy use — plan "plus" ($39/month) or "plus_yearly" ($390/year). Without a plan it returns both Pro and Pro+, each with a payment link, for the user to choose; with a plan, one link. An existing Pro subscription changes to Pro+ in place: call without confirm first, as the reply states the exact charge for this account (the price difference for the rest of the period, or in a free Pro trial the full Pro+ price, as the trial ends); then call with confirm: true. Cancel any time: the plan then runs to the end of the paid period, so it also suits a one-time job. A link opens Stripe Checkout in the browser; after payment the account upgrades automatically. Does not count against the meter. - Cancel the Pro subscription
buildium_cancel_subscriptionCancel the caller's Buildium Pro subscription at the end of the paid period (no refund for the current period; Pro continues until then, then the free tier applies). Requires confirm: true. Run buildium_upgrade later to undo the cancel before the period ends. Does not count against the meter.
FAQ
What can I do with Buildium in Claude or ChatGPT?
Find tenants who owe rent. Check which leases end soon. Review open work orders by priority. Create a work order for a vendor. Update to-do tasks and work orders. See what you can do for the details.
Is this an official Buildium product?
No. usefulapi is an independent service. It is not affiliated with or endorsed by Buildium. The server calls the Buildium API with your own Buildium access, so it sees only the data that your account can see.
Can I connect Buildium to Claude or ChatGPT?
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.
What do I need to connect?
The login page asks for your Client ID, Client secret and Environment. See Before you connect for where to find them.
Do I put my Buildium key or an Authorization header in the client config?
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 Client ID, Client secret and Environment. 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.
How do you keep my Buildium credentials?
The login stores them encrypted in the authorization grant of your connection. The server uses them to call the Buildium 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 Buildium.
Can the AI change my Buildium data?
Yes, if you approve it. 4 of the 23 Buildium tools can create or change data. The other 19 are marked read-only. Most MCP clients ask you to approve a tool call before it runs.
What does it cost?
The Free plan gives 50 tool calls / month. Pro costs $9/mo or $90/yr, with 10,000 tool calls / month. Pro+ costs $39/mo or $390/yr, with 100,000 tool calls / month. Each subscription covers this Buildium server only. Cancel any time: your paid plan then runs to the end of the paid period. Run buildium_usage_status to see how many calls you used.
How do I subscribe or cancel?
Ask the AI to run buildium_upgrade and choose Pro or Pro+, billed monthly or yearly: it returns a Stripe Checkout link. If you already have Pro, ask to change it to Pro+. After you confirm, your existing subscription changes in place, keeps its billing interval and charges the price difference for the rest of the period immediately. To cancel, run buildium_cancel_subscription. Your paid plan continues to the end of the paid period.
What if a Buildium tool that I need is missing?
Tell the AI what you wanted to do. It can send the request with buildium_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.
Which AI clients can I use?
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.