usefulapiFacturis Online MCP server
Read invoices, clients, products and stock; create clients and invoices in Facturis Online. Hosted by usefulapi: connect it to Claude, ChatGPT, Cursor or any MCP client.
What can I ask?
Turn on the Facturis Online connector, then ask in plain words. The AI picks the tools.
- List the invoices issued from 01-11-2026 to 10-11-2026 and their totals.
- Create a client named Example SRL with fiscal code RO12345678 and registration number J40/1234/2020.
- Create an invoice for Example SRL: 10 units of consulting at 100 RON each, 19% VAT, issued today.
- How much stock is left of the product with EAN 5941234567890 in the main warehouse?
What you can do with Facturis Online in Claude and ChatGPT
For Romanian small businesses that issue invoices and track stock in Facturis Online.
List invoices for a period
List the invoices issued in a date range, with their totals. Dates use the dd-mm-yyyy format.
Check stock of a product
Find a product by its EAN barcode or SKU. Then read the stock card of a warehouse at a location.
Add a client before invoicing
List the clients first. Then create a client with its name, fiscal code and registration number.
Changes dataCreate an invoice for a client
Create a live invoice with its lines. Facturis numbers the invoice and sets its status to issued. The call is not retried.
Changes dataHow do I connect Facturis Online?
Before you connect
The login page asks for your APIkey (from Facturis Online), Facturis user name, Facturis password and Company fiscal code.
The APIkey is the authorization key Facturis Online gives your account for the API. Your details are used only to call the 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 Facturis Online and this URL, then click Add:https://
facturis-online. usefulapi. io/ mcp - Claude opens the login page: enter your APIkey (from Facturis Online), Facturis user name, Facturis password and Company fiscal code.
- In a chat, click + → Connectors and turn on Facturis Online.
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 Facturis Online and this URL, choose OAuth as the authentication, confirm the warning and create it:https://
facturis-online. usefulapi. io/ mcp - ChatGPT opens the login page: enter your APIkey (from Facturis Online), Facturis user name, Facturis password and Company fiscal code.
- In Plugins, install Facturis Online, 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": {
"facturis-online": {
"url": "https://facturis-online.usefulapi.io/mcp"
}
}
} VS Code
Add to VS Code or add this to .vscode/mcp.json:
{
"servers": {
"facturis-online": {
"type": "http",
"url": "https://facturis-online.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 APIkey (from Facturis Online), Facturis user name, Facturis password and Company fiscal code. 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 Facturis Online server only. Ask your AI to run facturisonline_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 facturisonline_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 facturisonline_upgrade before then undoes the cancel. Or write to [email protected].
Tools 10
Show all 10 tools (the AI picks them for you)
Read only · 4
- List products
facturisonline_list_productsList products from the Facturis product catalogue (Nomenclatorul de Produse). With no filter it returns all products. To find one product, give both search_field (for example prod_cod for the EAN barcode, or prod_sku) and search_value. API: POST met=Produse act=Get. - Get stock levels
facturisonline_get_stockGet the stock card for a warehouse (gestiune) at a location (punct de lucru), as Facturis returns it. Both names must match the names set in the account, for example SEDIUL SOCIAL and gestiune principala. API: POST met=Stoc act=Get. - List clients
facturisonline_list_clientsList the clients (Clienti) of the company: name, fiscal code, registration number, address, phone and id. The API returns all clients in one reply, so large accounts give a long reply. API: POST met=Clienti act=Get. - List invoices
facturisonline_list_invoicesList the invoices issued in a date range, as Facturis returns them. Dates use dd-mm-yyyy. API: POST met=Facturi act=Get with date_start and date_stop.
Changes data · 2
- Create a client
facturisonline_create_clientCreate a client in the Facturis client list. Facturis rejects a client that already exists with the same name, fiscal code and registration number, so a repeat call does not add a second client. The required fields depend on the account settings; Facturis names a missing field in its error. API: POST met=Clienti act=Ins. - Create an invoice
facturisonline_create_invoiceCreate a live invoice in the customer's Facturis account. Facturis numbers it (series and number are automatic) and sets it to status Emisa (issued). Each line's totals are computed here from the net unit price, quantity and VAT rate. The call is sent once and is not retried. API: POST met=Facturi act=Ins.
Your usefulapi plan · 4
- Usage status (free-tier meter)
facturisonline_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
facturisonline_request_featureTell usefulapi that the user needs something the Facturis Online 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+
facturisonline_upgradeGet a paid plan for Facturis Online (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
facturisonline_cancel_subscriptionCancel the caller's Facturis Online 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 facturisonline_upgrade later to undo the cancel before the period ends. Does not count against the meter.
FAQ
What can I do with Facturis Online in Claude or ChatGPT?
List invoices for a period. Check stock of a product. Add a client before invoicing. Create an invoice for a client. See what you can do for the details.
Is this an official Facturis Online product?
No. usefulapi is an independent service. It is not affiliated with or endorsed by Facturis Online. The server calls the Facturis Online API with your own Facturis Online access, so it sees only the data that your account can see.
Can I connect Facturis Online 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 APIkey (from Facturis Online), Facturis user name, Facturis password and Company fiscal code. See Before you connect for where to find them.
Do I put my Facturis Online 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 APIkey (from Facturis Online), Facturis user name, Facturis password and Company fiscal code. 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 Facturis Online credentials?
The login stores them encrypted in the authorization grant of your connection. The server uses them to call the Facturis Online 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 Facturis Online.
Can the AI change my Facturis Online data?
Yes, if you approve it. 2 of the 6 Facturis Online tools can create or change data. The other 4 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 Facturis Online server only. Cancel any time: your paid plan then runs to the end of the paid period. Run facturisonline_usage_status to see how many calls you used.
How do I subscribe or cancel?
Ask the AI to run facturisonline_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 facturisonline_cancel_subscription. Your paid plan continues to the end of the paid period.
What if a Facturis Online tool that I need is missing?
Tell the AI what you wanted to do. It can send the request with facturisonline_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.