:: BILLING DOCS API ::

JSONBill

Lightweight JSON-based Billing Documents

For Developers & AI Agents

Create professional PDF invoices and settlement statements from JSON data with a simple RESTful API. Pay with credits or x402 (USDC on Base).

Get Started G Read Docs D Theme Samples T

A Product of Quaily

:: LIVE STATS ::
—
PDF documents generated
GET /stats
>_

Fast

Super lightweight API with minimal overhead. Get your documents generated in milliseconds.

{}

Simple

JSON in, PDF out. No complex SDKs or configurations needed. Works with any language.

[#]

AI-Ready

Designed for AI agents. Perfect for automated billing workflows and agentic applications.

curl -X POST https://api.jsonbill.com/tasks/docs \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer <APIKey>" \
  -d @doc.json
curl -X POST https://api.jsonbill.com/tasks/docs \
  -H "Content-Type: application/json" \
  -H "PAYMENT-SIGNATURE: <base64 signature>" \
  -d @doc.json
[*]

Features

Everything you need for professional document generation

{}

> JSON Format

Uses JSON format for billing data

.pdf

> PDF Output

Generates professional PDF invoices and settlement statements

$$$

> Multi-Currency

Supports multiple currencies and tax rates

BTC

> Crypto Payments

x402 onchain payments (USDC on Base) plus native crypto payment fields

[#]

> Templates

Multiple built-in templates for invoices and statements

[~]

> Secure

JWT and API key authentication for secure access

[SK]

SKILL.md for Agents

A ready-to-use SKILL file that teaches agents how to call JSONBill correctly.

Drop it into your agent skills or fetch it on demand.

$ curl -s https://jsonbill.com/SKILL.md
Open SKILL.md
[?]

Frequently Asked Questions

$
JSONBill is a lightweight API that generates professional PDF invoices and settlement statements from JSON data. It’s designed to be simple for developers and AI agents to use.
$
Use Authorization (JWT/API key) to pay with credits, or use x402 (USDC on Base) for pay-per-request without Authorization. With x402, the first request returns 402 with PAYMENT-REQUIRED, then you retry with PAYMENT-SIGNATURE.
$
params.currency is the default. You can override per section using summary.currency and detail_items[].currency. To show a quote/reference amount (implied FX), use total_include_tax_quote_amount and total_include_tax_quote_symbol (supported on both summary and detail_items[]).
$
Generated PDF documents are available for download for 1 hour after creation, then automatically removed.
$
Invoice uses bill_to_company/bill_to_address. Settlement statement uses recipient_company/recipient_address and type=settlementstatement. Payment instructions are ignored for settlement statements (only payment.result is rendered).
$
Provide either total_include_tax or total_exclude_tax. If using total_exclude_tax, also provide tax or tax_rate so the PDF can show the tax-inclusive total.
──────────────────── [ START ] ────────────────────

Ready to start generating documents?

Get started in minutes with our simple API

Get Started G Read Docs D