Read SOS Inventory stock and orders; create customers, items and purchase or sales orders. Hosted by usefulapi: connect it to Claude, ChatGPT, Cursor or any MCP client.
Turn on the SOS Inventory connector, then ask in plain words. The AI picks the tools.
For inventory and purchasing teams who manage stock, customers and orders in SOS Inventory.
Find an item by SKU and inspect its quantities, including stock on hand and available stock at a selected location.
List open sales orders and purchase orders, then inspect a selected order and its line items to see shipped or received quantities.
Find an existing vendor and items, confirm quantities and costs, then create a purchase order for the requested goods.
Changes dataYou sign in with your SOS Inventory account and approve the access (OAuth). You do not need an API key.
This server reads your items, customers, vendors, sales orders, purchase orders and other transactions, and can create customers, vendors, items, sales orders and purchase orders when you ask it to. It never edits or deletes existing records. SOS Inventory gives it the permissions of the user who signs in: to limit access, sign in with a SOS user that only has the permissions you want to grant. The connecting user must be able to read the company user list for account identification.
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": {
"sos-inventory": {
"url": "https://sos-inventory.usefulapi.io/mcp"
}
}
} Add to VS Code or add this to .vscode/mcp.json:
{
"servers": {
"sos-inventory": {
"type": "http",
"url": "https://sos-inventory.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: you sign in with your SOS Inventory account. 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 company | $9/mo · $90/yr | 10,000 tool calls / month |
| Pro+per company | $39/mo · $390/yr | 100,000 tool calls / month |
Each paid plan covers this SOS Inventory server only. Ask your AI to run sosinventory_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 sosinventory_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 sosinventory_upgrade before then undoes the cancel. Or write to [email protected].
sosinventory_list_itemssosinventory_get_itemsosinventory_get_item_bomsosinventory_list_customerssosinventory_get_customersosinventory_list_vendorssosinventory_get_vendorsosinventory_list_sales_orderssosinventory_get_sales_ordersosinventory_list_purchase_orderssosinventory_get_purchase_ordersosinventory_list_transactionssosinventory_get_transactionsosinventory_list_reference_datasosinventory_create_customersosinventory_create_vendorsosinventory_create_itemsosinventory_create_sales_ordersosinventory_create_purchase_ordersosinventory_usage_statussosinventory_request_featuresosinventory_upgradesosinventory_cancel_subscriptionCheck stock availability. Review outstanding orders. Prepare a purchase order. See what you can do for the details.
No. usefulapi is an independent service. It is not affiliated with or endorsed by SOS Inventory. The server calls the SOS Inventory API with your own SOS Inventory 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.
A SOS Inventory account. You sign in to SOS Inventory and approve the access. You do not need an API key.
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: you sign in with your SOS Inventory account. 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 SOS Inventory 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. You can revoke the access in SOS Inventory at any time.
Yes, if you approve it. 5 of the 19 SOS Inventory tools can create or change data. The other 14 are marked read-only. Most MCP clients ask you to approve a tool call before it runs.
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 SOS Inventory server only. Cancel any time: your paid plan then runs to the end of the paid period. Run sosinventory_usage_status to see how many calls you used.
Ask the AI to run sosinventory_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 sosinventory_cancel_subscription. Your paid plan continues to the end of the paid period.
Tell the AI what you wanted to do. It can send the request with sosinventory_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.