Invoice Generator Skill

Overview

Send billing addresses, an invoice number, and line items with item quantities and unit prices. The endpoint applies discounts, calculates sales tax against the adjusted subtotal, fetches remote logos up to 2 MB, and formats amounts across 172 currencies. It returns a temporary download URL and a Unix expiration timestamp.

Live Test Invoice Generator Skill Skill →

The tool

Once your client is connected to the VerveKit server, this appears in its tool list as InvoiceGeneratorSkill. It is read-only and open-world — it fetches and never mutates anything on your side — so most clients call it without asking you to confirm.

{
  "name": "InvoiceGeneratorSkill",
  "arguments": {
    "invoiceNumber": "12345",
    "from_name": "John Doe",
    "from_street": "123 Main St",
    "from_city": "Anytown",
    "from_state": "CA",
    "from_zip": "12345",
    "to_name": "Jane Doe",
    "to_street": "456 Elm St",
    "to_city": "Othertown",
    "to_state": "NY",
    "to_zip": "67890",
    "items": "[{\"qty\":1,\"description\":\"Web Design Services\",\"unit_price\":1000.00}]"
  }
}

You do not name the tool yourself; the model picks it. Asking about 12345 in the terms this skill covers is enough for it to reach for InvoiceGeneratorSkill on its own — naming it explicitly also works, and is the way to force the call.

Connecting

One server URL covers every skill in the catalog, including this one. Authorization is OAuth: the client opens a browser once, and there is no key to paste into a config file.

{
  "mcpServers": {
    "vervekit": {
      "url": "https://api.vervekit.com/v1/mcp"
    }
  }
}

https://api.vervekit.com/v1/mcp

Per-client setup — Claude, Cursor, VS Code, ChatGPT — is on the MCP setup page.

Arguments

These are the properties on the tool's inputSchema, so a well-behaved client validates them before the call is made. Premium arguments are accepted on every plan but only take effect on plans that include them.

What the model gets back

The result carries a structuredContent object matching the tool's declared outputSchema, so a client reads fields without parsing prose. status is "ok" and error is null on success; a null field means the value was not available for that input, not that the call failed.

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{
  "status": "ok",
  "error": null,
  "data": {
    "pdfName": "fc17c4bd-e660-4078-94ae-f46be56c9006.pdf",
    "expires": 1766096689189,
    "downloadURL": "https://storage.googleapis.com/apiverve-helpers.appspot.com/htmltopdf/fc17c4bd-e660-4078-94ae-f46be56c9006.pdf?GoogleAccessId=1089020767582-compute%40developer.gserviceaccount.com&Expires=1766096689&Signature=zZYB17Rj1yfbfhM3Epmjc9PEfmsVpgsCATX5%2Bx2yAo%2FV45xUatVzkAjUkPC48PkR4m%2BF7uIJBToUY2QAZMzNIOre4T0Md2eToXtcYF%2F%2FefS3sZocODRdiC%2BmEuMZjsAPMfkhbCMQZT4lZczQn9sfaWJlWJi%2FGWXKVUwZby3yn06Ed7OqianYbxQj87ENoqYudZFe5qFpI0hmwh4lBrnIM40hb4eZwwbGEvZL2WejNdBgD0cKb3C%2BHwJHkPvd2PAzFfNvuJolBxMN4jE3QCx9DN2MdHGUqb7t3vlP0Kder8m0lMpac%2BPbwZsDVmlF595cFzkKaE928uxzA1Mzkenffg%3D%3D"
  }
}

Response fields

Paths are relative to data. Premium fields are absent rather than zeroed on plans that do not include them, so check for presence instead of comparing to 0.

Failure modes

Errors come back as tool errors carrying a sentence the model can act on, not a bare status code. Error handling covers the full list.

A call costs 20 credits each time the tool actually runs; a model that reasons about the tool without calling it costs nothing.

Use cases

Order Fulfillment Billing

When an order clears checkout, generate a branded PDF receipt with itemized charges and local sales tax to email buyers.

Monthly Subscription Receipts

SaaS platforms turn recurring subscription renewals into downloadable invoice documents displaying custom payment terms and client billing addresses.

Contractor Payout Invoicing

To process contractor payouts, convert milestone task descriptions and hourly rates into signed PDF invoices before issuing bank transfers.

Automated Accounts Receivable

Accounting tools construct standardized PDF billing files complete with discounts and custom company logos directly from scheduled batch jobs.

Other ways to use Invoice Generator Skill

Set up Invoice Generator Skill on VerveKit, or reach the same source a different way. Your VerveKit account and credits work on all of them — one key, one balance.

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