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/196

What it does

This endpoint at lowpaymentfee.com provides x402-protocol access to a Stripe invoice resource (invoice #196). It is part of a broader platform offering pay-per-request APIs across data analytics, AI/ML, finance/Web3, and infrastructure categories — all gated behind x402 payment challenges settled in USDC on the Base network.

The specific endpoint `/api/v1/stripe/invoices/196` is labeled "Premium API Access" and accepts POST requests. The x402 challenge advertises a maximum cost of 20,000 base units of USDC (0x8335… on Base), which equals $0.02 per request (USDC uses 6 decimals). Payment is made via the x402 exact scheme to the specified payTo address, with a 300-second timeout. No API keys or rate limits are advertised; access is granted purely through on-chain micropayment.

The platform's documentation, pricing, and API reference pages appear to be behind a wallet-connect gate, so detailed request/response schemas are not available from the crawl. The endpoint's actual functionality beyond the "Premium API Access" label and Stripe invoice context is unclear — it may return invoice data or trigger invoice-related actions. The site lists many other endpoints at $0.02 each spanning sentiment analysis, text summarization, geocoding, price feeds, and more, all following the same x402 payment model.

Capabilities

x402-paymentusdc-basepay-per-requeststripe-invoicespost-methodno-api-key

Use cases

  • —Retrieving or interacting with Stripe invoice data via micropayment
  • —Programmatic access to invoice #196 without traditional API key authentication
  • —Agent-driven payment flows where per-call USDC settlement replaces subscriptions

Fit

Best for

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

Not for

  • —Users needing detailed API documentation before purchasing (docs are sparse)
  • —High-volume batch processing where per-request fees add up
  • —Users without USDC on Base network

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/stripe/invoices/196 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/stripe/invoices/196
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.35/ 1.00

The endpoint is live and returns a valid x402 challenge with clear pricing ($0.02 USDC on Base). However, there is no OpenAPI schema, no request/response examples, and the docs/pricing/API pages are all behind a wallet-connect wall yielding no useful content. The actual functionality of this specific invoice endpoint is unclear beyond its label.

Warnings

  • —No request or response schema available — actual endpoint behavior is unknown
  • —Documentation, pricing, and API reference pages are gated behind wallet connect and returned no useful content
  • —The endpoint path references a specific invoice ID (196); unclear if this is a demo or a real resource
  • —No OpenAPI spec or ai-plugin manifest found

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 10:31:22Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-25

Agent access

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