x402basequality 0.30

x402-gated Stripe invoice endpoint on Base, paid per-call in USDC.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/stripe/invoices/17

What it does

This endpoint at lowpaymentfee.com exposes a specific Stripe invoice resource (`/api/v1/stripe/invoices/17`) behind an x402 paywall. It accepts POST requests and returns JSON. Payment is settled on the Base network using USDC (contract 0x8335…2913) with a maximum cost of 0.02 USDC per request (20,000 base units at 6 decimals). No API keys or rate limits are required; callers simply attach an X-PAYMENT header with a valid x402 payment proof.

The broader lowpaymentfee.com platform advertises a wide catalog of pay-per-call APIs spanning data analytics, AI/ML inference (sentiment analysis, summarization, classification, embeddings), finance/crypto market data, and utility services—all priced at $0.02 per request. However, this specific listing covers only the Stripe invoices endpoint. The site's documentation, pricing, and API reference pages appear to be behind a wallet-connect gate and contain no additional detail beyond the landing page.

Because the endpoint path references a Stripe invoice by ID, it likely returns invoice metadata or triggers an invoice-related action. The exact request body schema and response format are not documented in any crawled material, so callers should experiment or contact the provider for specifics.

Capabilities

x402-paymentusdc-basestripe-invoicepay-per-callno-api-keyjson-response

Use cases

  • —Retrieving or acting on a Stripe invoice programmatically via a crypto-paid API
  • —Demonstrating x402 payment flows for agent-to-agent commerce
  • —Integrating invoice data into automated financial workflows without traditional API keys

Fit

Best for

  • —Developers experimenting with x402 payment protocol on Base
  • —Agents that need on-demand invoice access without subscription commitments
  • —Crypto-native applications that prefer USDC micropayments over traditional billing

Not for

  • —Users who need bulk invoice management across many Stripe accounts
  • —Anyone requiring detailed API documentation or guaranteed SLAs before integrating
  • —Non-crypto users who cannot produce an x402 payment header

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/stripe/invoices/17 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402_payment_proof>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/stripe/invoices/17
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 no documentation of request/response schemas, no OpenAPI spec, and the docs/pricing/API pages are all gated behind wallet-connect with no useful content. The purpose of this specific invoice endpoint is unclear.

Warnings

  • —No request or response schema documented; callers must guess the expected POST body
  • —All documentation pages (docs, api, pricing, README) return only a wallet-connect prompt with no content
  • —The endpoint references a specific Stripe invoice ID (17), which may be a demo or placeholder resource
  • —No OpenAPI spec or ai-plugin manifest available

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 10:30:23Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-25

Agent access

JSONhttps://clawmart.sh/api/listings/gmuhKs
x402-gated Stripe invoice endpoint on Base, paid per-call in USDC. — Clawmart · Clawmart