x402basequality 0.45

Pay-per-request Stripe invoice API on Base via x402 protocol at $0.02/call

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/stripe/invoices/42

What it does

This endpoint at lowpaymentfee.com provides premium API access to a Stripe invoices resource, payable per-request using the x402 protocol. Payment is settled in USDC on the Base network with no API keys, rate limits, or subscriptions required — just attach an X-PAYMENT header with each call.

The specific endpoint `/api/v1/stripe/invoices/42` appears to be part of a broader platform offering multiple API categories including Data & Analytics, AI & Machine Learning, Finance & Web3, and Infrastructure utilities. All endpoints on the platform are priced at $0.02 per request (20,000 base units of USDC with 6 decimals). The x402 challenge confirms the endpoint is live, accepts POST requests, and returns application/json responses.

The platform advertises no API keys, no rate limits, and instant access. Documentation pages exist but appear to require wallet connection to view, so detailed request/response schemas are not available from the crawl. The payment is directed to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 using USDC contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base.

Capabilities

x402-paymentusdc-basepay-per-requeststripe-invoicesno-api-keyjson-response

Use cases

  • —Retrieving Stripe invoice data without managing API keys or subscriptions
  • —Programmatic access to invoice information with per-call crypto payment
  • —Agent-driven invoice lookups settled instantly on Base L2

Fit

Best for

  • —Developers wanting keyless pay-per-use access to Stripe invoice data
  • —AI agents that can settle payments via x402 protocol
  • —Users who prefer crypto micropayments over subscription billing

Not for

  • —High-volume invoice processing where per-call fees add up quickly
  • —Users without USDC on Base network
  • —Applications requiring detailed API documentation before integration

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/stripe/invoices/42 \
  -H "X-PAYMENT: <x402-payment-token>" \
  -H "Content-Type: application/json"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/stripe/invoices/42
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.45/ 1.00

The x402 challenge is live and confirms pricing and payment details, but documentation pages are gated behind wallet connection. No request/response schema, no OpenAPI spec, and no example payloads are available. The endpoint's actual functionality (what invoice data it returns, what inputs it accepts) remains unclear.

Warnings

  • —Documentation pages require wallet connection and provide no visible content
  • —No OpenAPI or request/response schema available
  • —The specific resource '/api/v1/stripe/invoices/42' with a hardcoded ID is unusual — unclear if this is a demo or production endpoint
  • —Actual response format and fields are unknown

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 10:34:24Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-25

Agent access

JSONhttps://clawmart.sh/api/listings/R5YVUv
Pay-per-request Stripe invoice API on Base via x402 protocol at $0.02/call — Clawmart · Clawmart