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FreelanceDesk Invoice HTML Renderer
x402
FreelanceDesk Invoice HTML Renderer is a paid API for AI agents from afraid-butterfly-5236.obtranzat.deno.net, paid per call via x402, $0.1/call, status unknown (last checked 2026-11-01).
Generates a self-contained HTML invoice document from structured invoice JSON, returned in the same response after a $0.10 USDC micropayment on Base.
Price / call$0.1
Success—
StatusUnknown
How this service works
Invoicing and billing resources sold per call to software. POST invoice JSON to check it (0.05 USD), get a print-ready A4 invoice as PDF (0.10 USD) or as self-contained HTML (0.10 USD), or GET the FreelanceDesk app and document pack as zip downloads. Each endpoint answers 402 with two payment options: an x402 v2 PAYMENT-REQUIRED challenge and an MPP WWW-Authenticate challenge (method evm, intent charge). Both settle an exact USDC EIP-3009 transfer on Base (eip155:8453) and return the resource in the same response.
Output
A JSON object containing a 'html' field with the complete self-contained HTML invoice document as a string, a 'total' field with the computed invoice total as a formatted string, and a 'currency' field with the ISO 4217 currency code used.
Example use cases
Freelance web developer billing client
“Create an HTML invoice for my client TechStartup GmbH (billing@techstartup.de, VAT DE987654321) from my studio CodeCraft (hello@codecraft.dev), invoice 2026-031, dated 2026-06-15, due 2026-07-15 — 12 hours of backend development at €95/hour and 1 deployment setup at €200 flat, 19% VAT exclusive, EUR.”
Consultant generating multi-line project invoice
“I need an HTML invoice from me, Sara Consulting (sara@saraconsulting.com), to my client Nordic Retail AS (finance@nordicretail.no, VAT NO123456789) — invoice 2026-007, date 2026-05-28, due 2026-06-28. Line items: 3 days of strategy workshop at €1,500/day and 5 hours of follow-up at €200/hour, VAT 25% exclusive, currency EUR.”
Agency issuing monthly retainer invoice
“Generate an HTML invoice for our monthly retainer — from BrightAgency (accounts@brightagency.io) to MegaBrand Ltd (ap@megabrand.com), invoice 2026-MAY-R, issued 2026-05-01, due 2026-05-31. One line item: monthly retainer fee, quantity 1, €4,500.00, no tax, EUR. Add a note: 'Thank you for your continued partnership.'”
Technical details
Endpoint
POSThttps://afraid-butterfly-5236.obtranzat.deno.net/v1/invoice/render?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a self-contained, browser-renderable HTML invoice document that can be emailed directly or embedded in a web page — as opposed to the PDF endpoint when a print-ready fixed-layout file is needed, or the validate endpoint when you only want to check invoice data without generating a document. Ideal for agents that need to deliver invoices via email HTML or display them inline.
Side effects
- Missing required seller or client name returns 422 validation error
- Invalid date format (not YYYY-MM-DD) causes rejection
- Line items with negative or zero quantity are rejected (exclusiveMinimum: 0)
- unitPrice with more than 2 decimal places may be rejected
- Payment not settled (insufficient USDC balance or wrong chain) returns 402 with payment challenge and no document
- More than 100 line items exceeds maxItems limit
- Invalid currency code (non-ISO 4217) may produce unexpected output or error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| date | string | Issue date, YYYY-MM-DD |
| items | array | |
| notes | string | |
| client | object | |
| number | string | Invoice number, e.g. 2026-014 |
| seller | object | |
| dueDate | string | Due date, YYYY-MM-DD |
| taxMode | string | default exclusive |
| currency | string | ISO 4217 code, default EUR |
| taxLabel | string | default VAT |
Output
Schema · Response
{
"type": "json",
"example": {
"html": "<!doctype html><html lang=\"en\"></html>",
"total": "242.00",
"currency": "EUR"
}
}Tags
x402
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