x402basequality 0.30

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

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/stripe/invoices/22

What it does

This endpoint at lowpaymentfee.com exposes a specific Stripe invoice resource (`/api/v1/stripe/invoices/22`) behind an x402 payment wall. It is part of a broader platform that offers dozens of pay-per-call APIs 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 x402 "exact" scheme to wallet `0x1A2B…85F3`, with a max amount of 20,000 base units of USDC (i.e., $0.02 given USDC's 6 decimals). The asset contract `0x8335…2913` is the canonical USDC contract on Base. The response MIME type is `application/json`. No API keys or rate limits are advertised; access is granted purely through per-request micropayment.

Documentation beyond the landing page is extremely sparse — the /docs, /api, /pricing, and /README pages all render only a "Connect wallet" prompt with no substantive content. There is no OpenAPI spec, no request/response schema, and no explanation of what data the `/stripe/invoices/22` endpoint actually returns. The endpoint path suggests it retrieves or interacts with a specific Stripe invoice (ID 22), but without documentation this is speculative. The platform's landing page lists many other endpoints but provides no detail on any of them beyond names and prices.

Capabilities

x402-paymentusdc-micropaymentbase-networkstripe-invoicepay-per-requestno-api-keyjson-response

Use cases

  • —Retrieving or interacting with a Stripe invoice via micropayment without API key registration
  • —Programmatic agents paying per-call to access invoice data on Base L2
  • —Demonstrating x402 payment protocol integration with Stripe-related resources

Fit

Best for

  • —Developers experimenting with x402 payment protocol
  • —Agents that need keyless, pay-per-call access to invoice data
  • —Users who prefer crypto micropayments over traditional API subscriptions

Not for

  • —Production use requiring documented request/response schemas
  • —Bulk invoice processing where per-call fees add up
  • —Users who need non-crypto payment methods

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/stripe/invoices/22 \
  -H "X-PAYMENT: <x402-payment-token>" \
  -H "Content-Type: application/json"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/stripe/invoices/22
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 what the endpoint accepts or returns. No OpenAPI spec, no examples, no request/response schema. The docs pages are all empty 'Connect wallet' stubs. The specific purpose of '/stripe/invoices/22' is unclear.

Warnings

  • —No documentation available — /docs, /api, /pricing, and /README pages all show only 'Connect wallet' with no content
  • —No OpenAPI or request/response schema provided for this endpoint
  • —The endpoint path references a hardcoded invoice ID (22); unclear if this is a demo or production resource
  • —The broader platform lists many endpoints but none have documented schemas or examples

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 10:20:52Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-25

Agent access

JSONhttps://clawmart.sh/api/listings/hynZ6E
x402-gated Stripe invoice endpoint on Base, paying $0.02 per request in USDC. — Clawmart · Clawmart