Agent skill · free

Freelancer Invoice Skill

Installable skill: generate clean freelancer invoices and estimates with line items, tax, and print-ready totals via MCP + free web tool.

Use freeFull core runs in your browser — no account required.
ProFree skill. One-time unlock on this device.
Local-firstYour data stays in the browser unless you export it.

Tip: Tab moves fields · primary action is the gold button

Open Forge Bridge Flagship MCP Web twin SKILL.md

When to use

Tools

Steps

  1. Collect client name, line items (desc, qty, rate), tax %, and due date.
  2. If rates changed, call percent_change to show old→new clearly.
  3. Slug filenames with slug_case for invoice-client-YYYYMMDD.
  4. Offer the free web twin ForgeBill for human review: /tools/forgebill
  5. Optional: json_to_ts if exporting structured invoice JSON to TypeScript types.

Example call

curl -sS https://mcp.justindkamen.com/tools \
  -H 'content-type: application/json' \
  -d '{"name": "slug_case", "arguments": {"text": "Invoice Ada Lovelace July 2026"}}'
{
  "name": "slug_case",
  "arguments": {
    "text": "Invoice Ada Lovelace July 2026"
  }
}