Read Cin7 Core products, stock by location, sales, purchases, customers, suppliers and transfers. Hosted by usefulapi — connect from Claude, ChatGPT, Cursor, or any MCP client.
Team and Enterprise: an Owner adds the connector for the organization first.
Run this command, then run /mcp in Claude Code to log in:
Add to Cursor or add this to ~/.cursor/mcp.json:
{
"mcpServers": {
"cin7-core": {
"url": "https://cin7-core.usefulapi.io/mcp"
}
}
}Add to VS Code or add this to .vscode/mcp.json:
{
"servers": {
"cin7-core": {
"type": "http",
"url": "https://cin7-core.usefulapi.io/mcp"
}
}
}No Add custom MCP server option? It depends on your account or workspace settings: see OpenAI's guide.
Run these commands. The second one opens the login page:
Other MCP clients (Windsurf, Cline, Zed and more): add the URL as a remote MCP server (Streamable HTTP). The client then opens the login page in your browser. Do not add an Authorization header: see Before you connect.
The login page asks for your Account ID and API Application key.
In Cin7 Core (formerly DEAR Inventory) go to Integrations → API (inventory.dearsystems.com/ExternalAPI), add an API Application if you have none, and copy the Account ID and the Key. Each company has its own Account ID. The API allows 60 calls per minute per application. Your credentials are used only to call the Cin7 Core API on your behalf; they are never shown to anyone.
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 Account ID and API Application 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.
Turn on the Cin7 Core connector, then ask in plain words. The AI picks the tools.
| Tool | Type | What it does |
|---|---|---|
cin7core_get_company | read | Get company The Cin7 Core company these credentials belong to: company name, base currency, time zone, default weight/dimension units, lock date and tax calculation method. Good first call. GET /me. |
cin7core_list_locations | read | List locations List stock locations (warehouses) with their id, name, default flag, address, bins and pick zones. Location names are what the stock-availability and sale/purchase tools use. GET /ref/location. |
cin7core_list_products | read | List products List products (active by default): id, SKU, name, category, brand, type (Stock/Service), costing method, unit of measure, barcode, price tiers, average cost, reorder settings, status and description. Filter by name or SKU (contains) or by modification date. GET /product. |
cin7core_get_product | read | Get product One product by id (including deprecated ones) with its full detail; optionally its bill of materials, suppliers, stock movements, attachments, reorder levels and customer-specific prices. GET /product?ID=… |
cin7core_get_stock_availability | read | Get stock availability Stock levels per product, location, bin and batch: on hand, allocated, available, on order, in transit, stock on hand value and next delivery date. Filter by product id, name (starts with), exact SKU, location name, batch/serial number or category. GET /ref/productavailability. |
cin7core_list_customers | read | List customers List customers (active by default): id, name, display name, currency, payment term, tax rule, price tier, sales rep, location, credit limit and hold, status, addresses and contacts. Filter by name (starts with), contact name/email, or modification date. GET /customer. |
cin7core_get_customer | read | Get customer One customer by id (including deprecated ones), optionally with its customer-specific product prices. GET /customer?ID=… |
cin7core_list_suppliers | read | List suppliers List suppliers (active by default): id, name, currency, payment term, tax rule, discount, status, addresses and contacts. Filter by name (starts with) or modification date. GET /supplier. |
cin7core_get_supplier | read | Get supplier One supplier by id (including deprecated ones). GET /supplier?ID=… |
cin7core_list_sales | read | List sales List sales (sale orders) with order number, status, customer, order/invoice dates, invoice and paid amounts, currencies, and the quote/order/pick/pack/ship/invoice/payment statuses. Search by order number, customer, invoice number or customer reference; filter by dates and statuses. GET /saleList. |
cin7core_get_sale | read | Get sale One sale by id with everything on it: customer, contact, addresses, terms, location, notes, quote, order lines, fulfilments (pick/pack/ship and tracking), invoices, credit notes, payments, attachments and inventory movements. GET /sale?ID=… |
cin7core_list_purchases | read | List purchases List purchases (purchase orders) with order number, status, supplier, order/invoice/required-by dates, invoice and paid amounts, currencies, type (simple/advanced/service) and the order/receiving/invoice/payment statuses. GET /purchaseList. |
cin7core_get_purchase | read | Get purchase One purchase by id (simple, advanced or service purchase): supplier, contact, addresses, terms, location, required-by date, note, order lines, stock received, put away, invoices, credit notes, payments and attachments. GET /advanced-purchase?ID=… (the vendor endpoint that serves every purchase type). |
cin7core_list_stock_adjustments | read | List stock adjustments List stock adjustments: task id, number, effective date, status, expense account, reference and comment. GET /stockadjustmentList. |
cin7core_get_stock_adjustment | read | Get stock adjustment One stock adjustment by task id with its lines (product, location, batch, quantity, unit cost) and transactions. GET /stockadjustment?TaskID=… |
cin7core_list_stock_transfers | read | List stock transfers List stock transfers between locations: task id, number, from/to location, status, departure and completion dates, reference. GET /stockTransferList. |
cin7core_get_stock_transfer | read | Get stock transfer One stock transfer by task id with its lines (product, quantity, from/to bin, batch) and status. GET /stockTransfer?TaskID=… |
cin7core_usage_status | Usage status (free-tier meter) Report 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. | |
cin7core_request_feature | Request a missing feature Tell usefulapi that the user needs something the Cin7 Core 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. | |
cin7core_upgrade | Upgrade to Pro (unlimited*) Get Pro: unlimited tool calls (fair use limit: 10,000 a month) on Cin7 Core (the free tier caps monthly usage). Plans: "monthly" — $9/month; "yearly" — $90/year (2 months free). Cancel any time: Pro then runs to the end of the paid period, so it also suits a one-time job. *A fair use limit applies. For heavy use (near Pro's limit): "plus" or "plus_yearly" — Pro+, $19/month or $190/year, unlimited tool calls (fair use limit: 100,000 a month); an existing Pro subscription changes to Pro+ in place (needs confirm: true; the price difference for the rest of the period is charged at once). Otherwise returns a short link to open in your browser (it opens Stripe Checkout); after payment the account upgrades automatically. Does not count against the meter. | |
cin7core_cancel_subscription | Cancel the Pro subscription Cancel the caller's Cin7 Core 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 cin7core_upgrade later to undo the cancel before the period ends. Does not count against the meter. |
| Plan | Price | Limit |
|---|---|---|
| Free | $0 | 50 tool calls / month |
| Proper Cin7 account | $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 Cin7 Core server only. Subscribe with cin7core_upgrade (it returns a Stripe Checkout link). Cancel any time with cin7core_cancel_subscription: Pro continues to the end of the paid period, with no refund for the current period, and running cin7core_upgrade before then undoes the cancel. Or write to [email protected].
No. usefulapi is an independent service. It is not affiliated with or endorsed by Cin7 Core. The server calls the Cin7 Core API with your own Cin7 Core 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 Account ID and API Application key. 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 Account ID and API Application 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.
The login stores them encrypted in the authorization grant of your connection. The server uses them to call the Cin7 Core 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 Cin7 Core.
All 17 Cin7 Core 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 Cin7 Core server only. Cancel any time: Pro then runs to the end of the paid period. Run cin7core_usage_status to see how many calls you used.
Ask the AI to run cin7core_upgrade: it returns a Stripe Checkout link. To cancel, run cin7core_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 cin7core_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.