Spec Driven Development
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Description from the maker (original English)
Read SmartBill series, taxes, stock, clients and products; draft and issue invoices and estimates.
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Works in Claude on the web, desktop and mobile:
https://smartbill.usefulapi.io/mcpRun this in your terminal
claude mcp add --transport http smartbill https://smartbill.usefulapi.io/mcpPaste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"smartbill": {
"url": "https://smartbill.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": {
"smartbill": {
"type": "http",
"url": "https://smartbill.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://smartbill.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.
smartbill_list_seriesList the document series configured in SmartBill Cloud with their next number. Invoice and proforma tools need a series name from here. type: f = invoice series, p = proforma, c = receipt (chitanta); omit for all. GET /series.
smartbill_list_taxesList the VAT rates configured in the account (name and percentage). Use the name as tax_name and the percentage as tax_percentage on document lines. Works without a V3 token. GET /tax.
smartbill_get_stockStock quantities per warehouse as of a date (needs the SmartBill stock module). Optional filters: warehouse_name (case-sensitive), product_name, product_code. No filters = all products in all warehouses. GET /stocks.
smartbill_get_invoice_payment_statusWhether an invoice is paid and how much remains: invoiceTotalAmount, paidAmount, unpaidAmount and the paid flag. GET /invoice/paymentstatus.
smartbill_get_estimate_invoicesWhether a proforma was invoiced and the invoices (series, number) made from it. A draft invoice shows with an empty number. GET /estimate/invoices.
smartbill_list_clientsList clients from the SmartBill client list, optionally filtered by name (partial, case-insensitive), internal code (exact) or CIF (exact). Needs the API V3 token. Cursor paged: pass the reply's next_args as the next call's arguments. GET /v3/companies/{cif}/clients.
smartbill_get_clientOne client by V3 id (cus_...): name, CIF, address, bank, contact, VAT-payer flag and delivery addresses. Needs the API V3 token. GET /v3/companies/{cif}/clients/{id}.
smartbill_list_suppliersList suppliers, optionally filtered by name (partial), internal code (exact) or CIF (exact). Needs the API V3 token. Cursor paged: pass the reply's next_args as the next call's arguments. GET /v3/companies/{cif}/suppliers.
smartbill_get_supplierOne supplier by V3 id (sup_...). Needs the API V3 token. GET /v3/companies/{cif}/suppliers/{id}.
smartbill_list_productsList the product and service catalog (price, unit, VAT rate, currency), optionally filtered by name (whole-word match) or internal code (exact). Needs the API V3 token. Cursor paged: pass the reply's next_args as the next call's arguments. GET /v3/companies/{cif}/products.
smartbill_get_productOne product or service by V3 id (prod_...). Needs the API V3 token. GET /v3/companies/{cif}/products/{id}.
smartbill_list_warehousesList warehouses (name, type en gros / en detail, keeper, address). Needs the API V3 token. Cursor paged: pass the reply's next_args as the next call's arguments. GET /v3/companies/{cif}/warehouses.
smartbill_list_vat_ratesList VAT rates with ids, name, percentage and reverse-charge flag. Filter by name (partial) or percentage (exact). Needs the API V3 token (smartbill_list_taxes does the same without it). Cursor paged: pass the reply's next_args as the next call's arguments. GET /v3/companies/{cif
smartbill_create_invoiceCreate an invoice for a client with product/service lines. By default it is saved as a DRAFT (no number) for review in SmartBill Cloud. With draft=false the invoice is ISSUED: it takes the next number of the series, cannot be deleted or edited through this server, can only be can
smartbill_create_invoice_from_estimateCreate an invoice from an existing proforma (client and lines are copied from it). Default is a DRAFT; with draft=false the invoice is ISSUED with the next number of the series and may be transmitted to e-Factura / ANAF. Stock is not discharged. POST /invoice/v2 (useEstimateDetai
smartbill_create_estimateCreate a proforma (estimate) for a client with product/service lines. Default is a DRAFT (no number); with draft=false it takes the next number of the proforma series. A proforma is not a fiscal invoice. Returns series, number, documentId and links. POST /estimate/v2.
smartbill_reverse_invoiceISSUE a storno (credit) invoice that reverses an issued invoice. It takes the next number, an invoice can be reversed only once, and the storno cannot be undone; it may be transmitted to e-Factura / ANAF. Confirm the exact series and number with the user first. POST /invoice/reve
smartbill_cancel_invoiceCancel an existing invoice (it stays in the books as cancelled; smartbill_restore_invoice undoes it). Changes the document's fiscal status, so confirm with the user. PUT /invoice/cancel.
smartbill_restore_invoiceRestore an invoice that was cancelled, making it active again. PUT /invoice/restore.
smartbill_cancel_estimateCancel an existing proforma (smartbill_restore_estimate undoes it). PUT /estimate/cancel.
smartbill_restore_estimateRestore a proforma that was cancelled. PUT /estimate/restore.
smartbill_record_invoice_paymentRecord a collection (incasare) against one or more issued invoices; client and amount are taken from the invoices. With value (single invoice only) a partial payment is recorded. type Chitanta issues a numbered RECEIPT on receipt_series (cannot be undone from this server); the ot
smartbill_send_documentSend an issued invoice or proforma by email from SmartBill. This EMAILS A THIRD PARTY and cannot be recalled. Without `to` it goes to the client's email on the document; without subject/body_text the account's email template is used. Confirm the recipient with the user first. POS
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)
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We have not read this repo from GitHub yet
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Read 23 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 (1.22.3) 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: Spec Driven Development, Remote Desktop Commander, LickityClick
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
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
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Create, edit and track LickityClick short links, campaigns and click stats from your AI assistant.
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 SmartBill from Claude, Cursor, or any MCP client — document series, VAT rates, stock, payment status, clients, suppliers, products and warehouses, plus invoices and estimates (drafts by default), storno, cancel/restore, payments and sending documents by e-mail. Hosted, no local install: connect with your own SmartBill credentials.
Live endpoint: https://smartbill.usefulapi.io/mcp · Homepage: https://usefulapi.io/smartbill
https://smartbill.usefulapi.io/mcp.claude mcp add --transport http smartbill https://smartbill.usefulapi.io/mcp, then run /mcp to log in.{
"mcpServers": { "smartbill": { "url": "https://smartbill.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 SmartBill credentials.
Step-by-step setup, where to find your credentials, and FAQ: https://usefulapi.io/smartbill/
| Tool | Type | What it does |
|---|---|---|
smartbill_list_series | read | List document series |
smartbill_list_taxes | read | List VAT rates (V1) |
smartbill_get_stock | read | Get stock levels |
smartbill_get_invoice_payment_status | read | Get invoice payment status |
smartbill_get_estimate_invoices | read | Get invoices of a proforma |
smartbill_list_clients | read | List or search clients |
smartbill_get_client | read | Get a client |
smartbill_list_suppliers | read | List or search suppliers |
smartbill_get_supplier | read | Get a supplier |
smartbill_list_products | read | List or search products and services |
smartbill_get_product | read | Get a product or service |
smartbill_list_warehouses | read | List warehouses |
smartbill_list_vat_rates | read | List VAT rates (V3) |
smartbill_create_invoice | write | Create an invoice |
smartbill_create_invoice_from_estimate | write | Create an invoice from a proforma |
smartbill_create_estimate | write | Create a proforma |
smartbill_reverse_invoice | write | Reverse an invoice (storno) |
smartbill_cancel_invoice | write | Cancel an invoice |
smartbill_restore_invoice | write | Restore a cancelled invoice |
smartbill_cancel_estimate | write | Cancel a proforma |
smartbill_restore_estimate | write | Restore a cancelled proforma |
smartbill_record_invoice_payment | write | Record a payment against invoices |
smartbill_send_document | write | Email an invoice or proforma |
smartbill_usage_status | meta | Usage status (free-tier meter) |
smartbill_request_feature | meta | Request a missing feature |
smartbill_upgrade | meta | Upgrade to Pro or Pro+ |
smartbill_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 company) | $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 smartbill_upgrade (it returns a Stripe Checkout link). Cancel any time with smartbill_cancel_subscription: Pro continues to the end of the paid period, with no refund for the current period, and running smartbill_upgrade before then undoes the cancel. Or write to support@usefulapi.io.
MIT © usefulapi. Not affiliated with or endorsed by SmartBill.