usefulapiPHP Point of Sale MCP server
Read PHP Point of Sale items, sales, customers and 138 reports; manage customers, items, expenses. Hosted by usefulapi: connect it to Claude, ChatGPT, Cursor or any MCP client.
What can I ask?
Turn on the PHP Point of Sale connector, then ask in plain words. The AI picks the tools.
- How much did we sell yesterday, and which items sold best this week?
- Which items are below their reorder level?
- Find the customer with the email jane@example.com and show her last five sales.
- Change the price of item 142 to 19.90.
What you can do with PHP Point of Sale in Claude and ChatGPT
For store owners and managers who run their shop on PHP Point of Sale.
Find your best sellers and sales totals
The AI looks up one of the store's 138 reports, such as sales summary or top sellers, runs it for your dates and locations, and explains the result.
Find items that are below their reorder level
The AI lists items with category, supplier, prices and reorder level, or runs the low inventory report, so you know what to order.
Look up a customer and their latest sales
The AI finds a customer by email, phone or name, reads balance, tier and points, and lists their sales with line items and payments.
Check invoices and stock received
The AI lists customer invoices (money owed to you) or supplier invoices (money you owe), and receivings from suppliers by date range.
Create an item or update its fields
The AI searches items first, then creates a new item or changes fields such as price, category or active state on an existing one.
Changes dataAdd or change a customer, or record an expense
The AI creates a customer or changes the fields you pass, or records an expense with description, amount and date.
Changes dataHow do I connect PHP Point of Sale?
Before you connect
The login page asks for your Store name and PHP Point of Sale API key.
The store name is the part before .phppointofsale.com in your store address. Create the key in the POS under Store Config → API Settings → Add API Key: choose Read for questions only, Read/Write to let the AI create or change customers, items and expenses. An employee scope limits the key to what that employee may do. Copy the key when it is shown (it appears only once). Your key is used only to call your store's API on your behalf; it is never shown to anyone.
Claude claude.ai · Desktop
- Open Customize → Connectors, then click + Add → Add custom connector.
- Enter the name PHP Point of Sale and this URL, then click Add:https://
php-point-of-sale. usefulapi. io/ mcp - Claude opens the login page: enter your Store name and PHP Point of Sale API key.
- In a chat, click + → Connectors and turn on PHP Point of Sale.
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 PHP Point of Sale and this URL, choose OAuth as the authentication, confirm the warning and create it:https://
php-point-of-sale. usefulapi. io/ mcp - ChatGPT opens the login page: enter your Store name and PHP Point of Sale API key.
- In Plugins, install PHP Point of Sale, 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": {
"php-point-of-sale": {
"url": "https://php-point-of-sale.usefulapi.io/mcp"
}
}
} VS Code
Add to VS Code or add this to .vscode/mcp.json:
{
"servers": {
"php-point-of-sale": {
"type": "http",
"url": "https://php-point-of-sale.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 Store name and PHP Point of Sale API key. 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.
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 PHP Point of Sale server only. Ask your AI to run phppos_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 phppos_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 phppos_upgrade before then undoes the cancel. Or write to support@usefulapi.io.
Tools 30
Show all 30 tools (the AI picks them for you)
Read only · 21
- List locations
phppos_list_locationsList the store's locations (shops/warehouses) with name, address, phone, email, time zone and default tax rates, plus each location's registers (id and name). Use the location ids to filter sales, expenses, customers and reports. Payment-processor credentials and device settings are never returned. - List items
phppos_list_itemsList or search inventory items with name, item number, category, supplier, prices and reorder level. Search by text, or by one field (name, item_number, product_id, supplier, tag_name...). - Get item
phppos_get_itemOne inventory item by id: prices, tax settings, category, supplier, tags, attributes, variations, tier pricing and per-location settings. - List categories
phppos_list_categoriesList item categories with their ids. Use the ids to filter items or to file a new item. - List item kits
phppos_list_item_kitsList item kits (bundles of items sold together) with their prices. - List sales
phppos_list_salesList or search completed sales, by date range, customer (id or email) or location. verbosity: minimal (headline fields), medium (adds customer, totals, profit, location - the default here) or full (every line item, payment and tax). Suspended sales (layaways, estimates) are fetched with suspended_type. - Get sale
phppos_get_saleOne sale by id with line items, payments, taxes, customer and employee (verbosity full by default). - List receivings
phppos_list_receivingsList receivings (stock received from suppliers, purchase orders, transfers) with supplier, totals and items, by date range. - Get receiving
phppos_get_receivingOne receiving by id: supplier, items, quantities, costs and payments. - List customers
phppos_list_customersList or search customers with contact details, tier, store-account balance, credit limit and loyalty points. Search by text or by one field (email, phone_number, first_name, last_name, account_number). - Get customer
phppos_get_customerOne customer by person id: contact details, tier, tax settings, balance, credit limit, points, notes and custom fields. - List suppliers
phppos_list_suppliersList or search suppliers with contact details, company, account number and balance. - Get supplier
phppos_get_supplierOne supplier by person id. - List employees
phppos_list_employeesList employees with name, contact details, username, hire date, manager, commission and pay rate settings and assigned locations. Passwords and the permission maps are never returned. - List invoices
phppos_list_invoicesList customer invoices (money customers owe) or supplier invoices (money the store owes) with date, due date, status and amount. - List expenses
phppos_list_expensesList recorded expenses with type, description, date, amount, tax, payment type, category and location. - List gift cards
phppos_list_gift_cardsList gift cards with number, description, remaining value, customer and whether inactive. - Get gift card
phppos_get_gift_cardOne gift card by its card number (or id): remaining value, customer and status. - List appointments
phppos_list_appointmentsList appointments (bookings) with customer, employee, service, start and end time, optionally within a time window. - List reports
phppos_list_reportsThe catalog of the store's reports (138 of them: sales summaries, top sellers, inventory low/aging/summary, profit and loss, taxes, payments, employee, customer, supplier and store-account reports) with the inputs each accepts. Without `search` only the report keys are returned; with `search` (for example 'inventory' or 'profit') the matching reports are returned with their inputs. - Run report
phppos_run_reportRun one of the store's reports and return it (title, summary, detail rows); `paging.next_offset` is set when more detail rows remain. Report keys and their inputs come from phppos_list_reports (for example summary_sales, top_sellers, inventory_low, summary_profit_and_loss, summary_taxes, closeout). Typical inputs go in `params`: start_date, end_date, sale_type, location_ids (array), category_id, supplier_id, customer_id, employee_id. A scoped key needs the Reports module plus that report's view permission.
Changes data · 5
- Create customer
phppos_create_customerWRITE: create a customer in the store. Store-account balance, credit limit and loyalty points cannot be set here. Needs a Read/Write API key. Retrying creates a duplicate (check phppos_list_customers first). The store's 'new customer' webhook, if configured, fires. - Update customer
phppos_update_customerWRITE: change fields of an existing customer; only the fields you pass are sent. Overwrites the current values. Needs a Read/Write API key. The store's 'edit customer' webhook, if configured, fires. - Create item
phppos_create_itemWRITE: create an inventory item (name required). Stock quantities are not set here. Needs a Read/Write API key. Retrying creates a duplicate (search with phppos_list_items first). The store's item webhooks, if configured, fire. - Update item
phppos_update_itemWRITE: change fields of an existing item (for example its price, category or active state); only the fields you pass are sent. Overwrites the current values, and a price change applies to the next sale. Needs a Read/Write API key. The store's 'edit item' webhook, if configured, fires. - Create expense
phppos_create_expenseWRITE: record an expense in the store's books (description, amount and date). It affects expense and profit-and-loss reports. Needs a Read/Write API key. Retrying records it twice (check phppos_list_expenses first).
Your usefulapi plan · 4
- Usage status (free-tier meter)
phppos_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
phppos_request_featureTell usefulapi that the user needs something the PHP Point of Sale 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+
phppos_upgradeGet a paid plan for PHP Point of Sale (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
phppos_cancel_subscriptionCancel the caller's PHP Point of Sale 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 phppos_upgrade later to undo the cancel before the period ends. Does not count against the meter.
FAQ
What can I do with PHP Point of Sale in Claude or ChatGPT?
Find your best sellers and sales totals. Find items that are below their reorder level. Look up a customer and their latest sales. Check invoices and stock received. Create an item or update its fields. Add or change a customer, or record an expense. See what you can do for the details.
Is this an official PHP Point of Sale product?
No. usefulapi is an independent service. It is not affiliated with or endorsed by PHP Point of Sale. The server calls the PHP Point of Sale API with your own PHP Point of Sale access, so it sees only the data that your account can see.
Can I connect PHP Point of Sale 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 Store name and PHP Point of Sale API key. See Before you connect for where to find them.
Do I put my PHP Point of Sale 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 Store name and PHP Point of Sale API key. 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 PHP Point of Sale credentials?
The login stores them encrypted in the authorization grant of your connection. The server uses them to call the PHP Point of Sale 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 PHP Point of Sale.
Can the AI change my PHP Point of Sale data?
Yes, if you approve it. 5 of the 26 PHP Point of Sale tools can create or change data. The other 21 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 PHP Point of Sale server only. Cancel any time: your paid plan then runs to the end of the paid period. Run phppos_usage_status to see how many calls you used.
How do I subscribe or cancel?
Ask the AI to run phppos_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 phppos_cancel_subscription. Your paid plan continues to the end of the paid period.
What if a PHP Point of Sale tool that I need is missing?
Tell the AI what you wanted to do. It can send the request with phppos_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.