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/52

What it does

This endpoint at lowpaymentfee.com provides access to a Stripe invoice resource (invoice ID 52) behind an x402 paywall. The endpoint accepts POST requests and returns JSON. Payment is settled on the Base network using USDC (contract 0x8335…2913) via the x402 "exact" scheme. The maximum amount required per call is 20,000 base units of USDC, which equals $0.02 USD (USDC uses 6 decimals).

The hosting site lowpaymentfee.com advertises a broad 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 with no API keys, no rate limits, and no commitments. However, the specific endpoint listed here (/api/v1/stripe/invoices/52) is not among the publicly documented APIs on the landing page. Its description is simply "Premium API Access," and no further documentation, request schema, or response schema is available. The docs, pricing, and API pages all render only a "Connect wallet" prompt with no additional content.

Because of the lack of documentation for this specific endpoint, it is unclear what data it returns or what input it expects beyond a POST request. The x402 challenge is live and well-formed, confirming the endpoint is operational, but consumers should be aware that the actual functionality behind this route is undocumented.

Capabilities

x402-paymentusdc-settlementbase-networkstripe-invoicepay-per-calljson-response

Use cases

  • —Retrieving Stripe invoice data via a crypto-paid API call
  • —Programmatic access to invoice #52 without traditional API keys
  • —Agent-driven payment-gated data retrieval on Base

Fit

Best for

  • —Developers wanting keyless, pay-per-call access to invoice data
  • —AI agents that can settle x402 payments in USDC on Base
  • —Users who prefer crypto micropayments over subscription billing

Not for

  • —Anyone needing documented request/response schemas before integrating
  • —Bulk invoice retrieval or batch processing (single invoice endpoint)
  • —Users without USDC on the Base network

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/stripe/invoices/52 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/stripe/invoices/52
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The x402 challenge is live and well-formed, confirming the endpoint is operational at $0.02/call in USDC on Base. However, there is no OpenAPI schema, no documented request/response format, no examples, and the specific endpoint (/api/v1/stripe/invoices/52) is not listed among the site's publicly advertised APIs. Docs pages render only a wallet-connect prompt.

Warnings

  • —This specific endpoint (/api/v1/stripe/invoices/52) is not listed among the site's publicly documented APIs
  • —No request or response schema is available — functionality is unknown
  • —All documentation pages (docs, pricing, API, README) render only a 'Connect wallet' prompt with no content
  • —The endpoint path suggests access to a single specific Stripe invoice (ID 52), which may have limited general utility

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 10:36:43Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-25

Agent access

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