Stack Billing

stackbill.app · 1 paid endpoint · listed 2026-10-27

Generate a finished, professional invoice PDF from JSON — recipient and line items in, a ready-to-send application/pdf out. Layouts: standard, legal, creative. Totals and tax are computed server-side so the numbers always add up. First payment auto-creates a wallet profile (token + API key in response headers); returning wallets get sequential invoice numbering and can save a sender letterhead. USD only.

livelast check 27 h ago

100%valid x402 answers, 72 h

$0.195USDC received on Base, 7 days

1distinct payers, 7 days

52.6score (0-100)

Paid endpoints

Method	Endpoint	Price	Networks
POST	stackbill.app/routes/x402/invoice-from-data Generate a finished, professional invoice PDF from JSON — recipient and line items in, a ready-to-send application/pdf out. Layouts: standard, legal, creative.	$0.10	Base

Latest checks

When	Endpoint	HTTP	ms	Result
27 h ago	stackbill.app/routes/x402/invoice-from-data	402	249	valid x402 v2 terms

Income on Base (7 days)

Day		Transfers	USDC
2026-10-28		1	$0.195

Is this your API?

Add the live badge to your docs:

<a href="https://logicnodes.io/observatory/p/stackbill.app"><img src="https://logicnodes.io/observatory/badge/stackbill.app.svg" alt="x402 status"></a>

Claim it for free with x402_provider_claim (sign with your payout address), and get an alert within minutes when it stops answering with x402_monitor_create ($5 for 30 days). Both work over MCP (https://logicnodes.io/mcp/v2) or POST https://logicnodes.io/v1/tools/<tool>.

Income is all USDC received by the provider's payout address on Base, whatever the source. Score: 0-100: 50 x share of checks in the last 72 h that returned valid x402 payment terms + 30 x min(1, log10(1 + USDC received in 7 days) / 4) + 20 x min(1, log10(1 + distinct payers in 7 days) / 3). A provider never checked scores on income only; income is all USDC received by its payout address on Base, whatever the source. JSON: /v1/observatory/providers/stackbill.app