# STEL Order Muse connector

From musedirectory.ai, the independent directory of Meta Muse connectors. Not affiliated with Meta.

## STEL Order

Look up and update your STEL Order clients, invoices, orders and stock from a chat.

- Record: https://musedirectory.ai/connector/stel-order
- Category: Finance & Bills
- Developer: usefulapi (https://usefulapi.io/stel-order/)
- Muse status: Extra setup. Not in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
- Health: Working, 136ms, checked 2026-11-08T02:15:46Z
- Endpoint: https://stel-order.usefulapi.io/mcp
- Auth: No account needed; Pricing: unknown
- Screening: Screened, no issues found (2026-11-07T22:01:32Z)
- Source: Found in the official MCP Registry (io.usefulapi/stel-order) https://registry.modelcontextprotocol.io/v0/servers?search=io.usefulapi%2Fstel-order

Connects to STEL Order, the business management app for invoicing, orders, stock and client records. Muse can read clients, invoices, orders and stock levels, create or update client records and add contacts, so a shop or small team can check and update its books without switching apps.

Example request: "Add the new client from this morning's call and check whether their order is still in stock."

How to connect: Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use STEL Order to help me. It is a free service with an MCP server at https://stel-order.usefulapi.io/mcp. It does not need an API key. Ask me before you share anything with it." Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.

Tools:
- stelorder_get_company: Get the STEL Order company of this APIKEY: legal name, tax number, plan, subscription status, currency and time zone. Good first call. API: GET /app/company. Usage limits: 60 calls per minute per key, and 300 (Lite), 1000 (Business) or 2000 (Pro) calls per day.
- stelorder_list_clients: List clients (customers) with their reference, legal name, tax number, contact details and rate. Filter by name, email, tax number or last change time. API: GET /app/clients. Usage limits: 60 calls per minute per key, and 300 (Lite), 1000 (Business) or 2000 (Pro) calls per day.
- stelorder_get_client: Get one client by id, with its addresses, rate and payment settings. API: GET /app/clients/{ID}. Usage limits: 60 calls per minute per key, and 300 (Lite), 1000 (Business) or 2000 (Pro) calls per day.
- stelorder_list_contacts: List contacts (people) with their name, email, phone and position. Filter by client (account_id). Use IS_NULL_VALUE as account_id for contacts with no client. API: GET /app/contacts. Usage limits: 60 calls per minute per key, and 300 (Lite), 1000 (Business) or 2000 (Pro) calls pe
- stelorder_list_products: List products and services with their reference, name, description, barcode and inactive or composite flags. Filter by name, reference, category or change time. API: GET /app/products. Usage limits: 60 calls per minute per key, and 300 (Lite), 1000 (Business) or 2000 (Pro) calls 
- stelorder_get_product: Get one product or service by id, with its prices, tax and stock settings. API: GET /app/products/{ID}. Usage limits: 60 calls per minute per key, and 300 (Lite), 1000 (Business) or 2000 (Pro) calls per day.
- stelorder_list_sales_estimates: List sales estimates (quotes) with their reference, title, date, client and document state. Filter by date range, client or state. API: GET /app/salesEstimates. Usage limits: 60 calls per minute per key, and 300 (Lite), 1000 (Business) or 2000 (Pro) calls per day.
- stelorder_list_sales_orders: List sales orders with their reference, title, date, client and document state. Filter by date range, client, state or parent document. API: GET /app/salesOrders. Usage limits: 60 calls per minute per key, and 300 (Lite), 1000 (Business) or 2000 (Pro) calls per day.
- stelorder_list_ordinary_invoices: List ordinary invoices with their reference, title, date, client and document state. Filter by date range, client, state or change time. API: GET /app/ordinaryInvoices. Usage limits: 60 calls per minute per key, and 300 (Lite), 1000 (Business) or 2000 (Pro) calls per day.
- stelorder_get_ordinary_invoice: Get one ordinary invoice by id, with its lines, client, totals and tax. API: GET /app/ordinaryInvoices/{ID}. Usage limits: 60 calls per minute per key, and 300 (Lite), 1000 (Business) or 2000 (Pro) calls per day.
- stelorder_list_invoice_receipts: List ordinary invoice receipts: the payment items of invoices, with amount, payment term date, paid and settled flags. Use paid=false and an end_payment_term_date to find unpaid items that are due. API: GET /app/ordinaryInvoiceReceipts. Usage limits: 60 calls per minute per key, 
- stelorder_list_warehouses: List warehouses (stock locations) with their name, description and visibility. API: GET /app/warehouses. Usage limits: 60 calls per minute per key, and 300 (Lite), 1000 (Business) or 2000 (Pro) calls per day.
- stelorder_list_stock_movements: List stock movements (stock in, out and transfers) with date, item, warehouses, employee and real stock before and after. Filter by item, warehouse, type or change time. API: GET /app/stockMovements. Usage limits: 60 calls per minute per key, and 300 (Lite), 1000 (Business) or 20
- stelorder_create_client: WRITE: create one client in STEL Order. Only legal_name is required. Creates a new record in the customer's account. API: POST /app/clients. Usage limits: 60 calls per minute per key, and 300 (Lite), 1000 (Business) or 2000 (Pro) calls per day.
- stelorder_update_client: WRITE: change fields of one existing client. Fields you leave out keep their values. Setting a field changes the live client record. API: PUT /app/clients/{ID}. Usage limits: 60 calls per minute per key, and 300 (Lite), 1000 (Business) or 2000 (Pro) calls per day.
- stelorder_create_contact: WRITE: create one contact (a person) in STEL Order, optionally linked to a client with account_id. API: POST /app/contacts. Usage limits: 60 calls per minute per key, and 300 (Lite), 1000 (Business) or 2000 (Pro) calls per day.

Screening checks:
- MCP handshake: pass (Answered in 326ms)
- Domain against threat feeds (Cloudflare security DNS): pass (stel-order.usefulapi.io, usefulapi.io not flagged)
- Published packages against the OSV malicious-package database: n/a (No npm or PyPI package published)
- Hidden instructions or invisible characters in tool text: n/a (Tools are behind sign-in)
- Inputs asking for passwords, card numbers or seed phrases: n/a (Tools are behind sign-in)
- Domain and redirects: pass (No redirects off the domain)
- AI review of purpose and tool behavior: pass (No concerns)