x402basequality 0.30

x402-gated Stripe invoice endpoint on Base, paying $0.02 in USDC per request.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/stripe/invoices/149

What it does

This endpoint at lowpaymentfee.com exposes a specific Stripe invoice resource (`/api/v1/stripe/invoices/149`) behind an x402 payment wall. It is part of a broader platform that offers dozens of pay-per-call API endpoints spanning data analytics, AI/ML inference, finance/Web3 data, and utility services — all priced at $0.02 per request and settled in USDC on the Base network.

The x402 challenge confirms the endpoint is live and accepts POST requests. Payment is made via the "exact" scheme to a specified wallet address, with the asset being USDC (contract `0x8335…2913` on Base). The maxAmountRequired of 20,000 base units corresponds to $0.02 (USDC uses 6 decimals). No API keys or rate limits are advertised; access is granted purely through the x402 payment header.

Documentation is extremely sparse — the /docs, /api, /pricing, and /README pages all render only a "Connect wallet" prompt with no further content. There is no OpenAPI spec, no request/response schema documentation, and no description of what the `/stripe/invoices/149` endpoint actually returns beyond the generic label "Premium API Access". The specific behavior of this invoice endpoint (whether it creates, retrieves, or processes a Stripe invoice) cannot be determined from available materials.

Capabilities

x402-paymentusdc-basepay-per-requeststripe-invoiceno-api-keyno-rate-limit

Use cases

  • —Retrieving or processing a Stripe invoice via a single paid API call
  • —Agent-driven invoice workflows that settle payment in USDC on Base
  • —Programmatic access to Stripe invoice data without traditional API key management

Fit

Best for

  • —Agents or services that can settle USDC payments on Base L2
  • —Developers wanting key-less, pay-per-use access to invoice data
  • —Exploring x402 protocol integrations with Stripe-related endpoints

Not for

  • —Users needing detailed API documentation or response schemas before integrating
  • —High-volume invoice processing where per-request fees add up
  • —Anyone without a Base-compatible USDC wallet

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/stripe/invoices/149 \
  -H "X-PAYMENT: <x402-payment-token>" \
  -H "Content-Type: application/json"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/stripe/invoices/149
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is live (402 challenge captured) and pricing is clear ($0.02 USDC on Base), but there is zero documentation on request parameters, response format, or what this specific invoice endpoint does. No OpenAPI spec, no examples, and all doc pages are empty wallet-connect stubs.

Warnings

  • —No documentation available — /docs, /api, /pricing, and /README pages all show only 'Connect wallet' with no content
  • —No OpenAPI or schema describing request body or response format for this endpoint
  • —The specific purpose of /api/v1/stripe/invoices/149 ('Premium API Access') is unclear — it may be a demo or placeholder
  • —No robots.txt or agents.txt present

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 10:21:18Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-25

Agent access

JSONhttps://clawmart.sh/api/listings/QUVdbc
x402-gated Stripe invoice endpoint on Base, paying $0.02 in USDC per request. — Clawmart · Clawmart