Agent-Native Calendar
Agent-Native Google Calendar - manage events, sync, and public booking
Description from the maker (original English)
Create invoices and credit notes; check whether invoices are sent and paid in Facturalia.
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We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.
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Works in Claude on the web, desktop and mobile:
https://facturalia.usefulapi.io/mcpRun this in your terminal
claude mcp add --transport http facturalia https://facturalia.usefulapi.io/mcpPaste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"facturalia": {
"url": "https://facturalia.usefulapi.io/mcp"
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
Paste into .vscode/mcp.json in your project
{
"servers": {
"facturalia": {
"type": "http",
"url": "https://facturalia.usefulapi.io/mcp"
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
ChatGPT connects only to servers on the internet:
https://facturalia.usefulapi.io/mcpMenu names can differ slightly by plan and over time.
Your choice stays on this device in a cookie; no account needed.
These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.
Tool names and descriptions exactly as the server reported them on Nov 6, 2026. The maker wrote them, not us; we show them as plain text.
facturalia_get_invoice_statusGet the sent and paid status of one invoice by its number. Facturalia API: GET /invoices/status/?number=.
facturalia_get_credit_note_statusGet the paid status of one credit note by its number. Facturalia API: GET /creditnotes/status/?number=.
facturalia_create_invoiceCreate a sales invoice in the live Facturalia account from customer and line data. It creates a real invoice that counts toward the account's invoices; it is not sent by e-mail (autosend is not offered). Send external_id so a retry does not create a second invoice. Facturalia API
facturalia_create_credit_noteCreate a credit note in the live Facturalia account from customer and line data. It creates a real document; it is not sent by e-mail (autosend is not offered). Send external_id so a retry does not create a second credit note. Facturalia API: POST /creditnotes/.
We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 6, 2026
The registry name was verified against the domain usefulapi.io (the registry checks domain ownership)
We have not read this repo from GitHub yet
We have not read this repo from GitHub yet
Responded in 6 ms (HTTP 200)
No sign-in needed
Read 4 tool descriptions and found no hidden instructions to the AI
Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.
It passed 3 of 3 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.
The registry does not list a required key, though some servers ask you to sign in on first use.
It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.
The GitHub repo last changed –, and the latest version (1.2.3) reached the registry yesterday.
Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.
In the same category: Agent-Native Calendar, Excel MCP Server, MCP Server for Excel
Servers in the same category from other makers, sorted by stars.
Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
Agent-Native Google Calendar - manage events, sync, and public booking
Lets AI create and edit Excel files itself, including formulas, charts and PivotTables, without Excel installed.
Excel automation for AI - Sheets, Power Query, DAX, VBA, Tables, Ranges and more. Windows only.
Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.
Use your Facturalia account from Claude, Cursor, or any MCP client. It reads the sent and paid status of invoices and the paid status of credit notes, and it creates live invoices and credit notes. Hosted, no local install: connect with your own credentials.
Live endpoint: https://facturalia.usefulapi.io/mcp · Homepage: https://usefulapi.io
https://facturalia.usefulapi.io/mcp.claude mcp add --transport http facturalia https://facturalia.usefulapi.io/mcp, then run /mcp to log in.{
"mcpServers": { "facturalia": { "url": "https://facturalia.usefulapi.io/mcp" } } }
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, and the login page asks for your Facturalia credentials.
Step-by-step setup, where to find your credentials, and FAQ: https://usefulapi.io/facturalia/
On first connect you provide your Facturalia live API key (in Facturalia under Extra, Modules, API; it starts with fac_live_). The server validates it and stores it per user. No keys go in config files.
| Tool | Type | What it does |
|---|---|---|
facturalia_get_invoice_status | read | Get invoice status |
facturalia_get_credit_note_status | read | Get credit note status |
facturalia_create_invoice | write | Create an invoice |
facturalia_create_credit_note | write | Create a credit note |
facturalia_usage_status | meta | Usage status (free-tier meter) |
facturalia_request_feature | meta | Request a missing feature |
facturalia_upgrade | meta | Upgrade to Pro or Pro+ |
facturalia_cancel_subscription | meta | Cancel the Pro subscription |
read tools are read-only; write tools mutate data (clients should confirm them); meta tools report usage, manage your subscription or send a feature request.
| Plan | Price | Limit |
|---|---|---|
| Free | $0 | 50 tool calls / month |
| Pro (per user) | $9/mo or $90/yr (2 months free) | Unlimited* |
\*Pro has a fair use limit of 10,000 tool calls a month on this server. For more, write to support@usefulapi.io.
Pro covers this server only. Subscribe with facturalia_upgrade (it returns a Stripe Checkout link). Cancel any time with facturalia_cancel_subscription: Pro continues to the end of the paid period, with no refund for the current period, and running facturalia_upgrade before then undoes the cancel. Or write to support@usefulapi.io.
MIT — see LICENSE. Documentation only; the server is hosted.