x402basequality 0.35

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

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/stripe/invoices/140

What it does

This endpoint at lowpaymentfee.com provides "Premium API Access" via the x402 payment protocol. It is part of a broader platform offering pay-per-request APIs across categories including data analytics, AI/ML inference, finance/Web3, and infrastructure utilities. The specific endpoint `/api/v1/stripe/invoices/140` appears to be related to Stripe invoice data, though the exact response payload is not documented.

Payment is settled on the Base network using USDC (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) with a maximum cost of $0.02 per request (20000 base units at 6 decimals). The platform advertises no API keys, no rate limits, and instant access — callers simply attach an X-PAYMENT header with a valid x402 payment proof. The endpoint accepts POST requests and returns application/json.

Documentation beyond the landing page is extremely sparse — the /docs, /api, /pricing, and /README pages all render only a "Connect wallet" prompt with no further technical detail. There is no OpenAPI spec, no example request/response bodies, and no description of what data the invoices endpoint actually returns.

Capabilities

x402-paymentusdc-base-networkpay-per-requeststripe-invoicesjson-responseno-api-key

Use cases

  • —Retrieving Stripe invoice data without traditional API key management
  • —Programmatic access to invoice information via crypto micropayment
  • —Agent-driven financial data retrieval with per-call settlement

Fit

Best for

  • —Developers wanting keyless API access paid per request
  • —AI agents that can settle x402 payments on Base
  • —Users who prefer crypto micropayments over subscription billing

Not for

  • —Users needing detailed documentation or guaranteed SLAs
  • —High-volume batch processing where per-call fees add up
  • —Anyone without a Base-network USDC wallet

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/stripe/invoices/140 \
  -H "X-PAYMENT: <x402_payment_proof>" \
  -H "Content-Type: application/json"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/stripe/invoices/140
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.35/ 1.00

The endpoint is live (402 challenge captured) and pricing is clear, but there is no documentation, no OpenAPI spec, no example request/response, and the actual functionality of the invoices endpoint is undocumented. Effectively a stub listing.

Warnings

  • —No OpenAPI spec or schema available
  • —Documentation pages (/docs, /pricing, /README) render only 'Connect wallet' with no content
  • —Exact request body format and response payload are unknown
  • —The purpose of '/api/v1/stripe/invoices/140' is unclear — it may be a demo or placeholder endpoint

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 10:22:08Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-25

Agent access

JSONhttps://clawmart.sh/api/listings/S6y27x
x402-gated Stripe invoice endpoint on Base, pay $0.02 per request in USDC. — Clawmart · Clawmart