x402basequality 0.35

x402-gated Stripe invoice endpoint on Base, paying per-call in USDC.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/stripe/invoices/1

What it does

This endpoint at lowpaymentfee.com provides access to a Stripe invoice resource via the x402 payment protocol. The specific path `/api/v1/stripe/invoices/1` is labeled "Premium API Access" and accepts POST requests gated by an x402 challenge. Payment is settled on the Base network using USDC (contract 0x8335…2913) with a maximum cost of 0.02 USDC per request (20,000 base units at 6 decimals). The payee address is 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3.

The broader lowpaymentfee.com platform advertises a suite of pay-per-call APIs spanning data analytics, AI/ML inference (sentiment analysis, summarization, classification, embeddings), finance/crypto market data, and infrastructure utilities — all priced at $0.02 per request with no API keys, no rate limits, and no commitments. However, the specific endpoint being listed here is the Stripe invoices resource, and no detailed documentation or request/response schema is available for it. The docs, pricing, and API pages on the site returned only a "Connect wallet" prompt with no further content.

Because there is no OpenAPI spec, no request body schema, and no example responses, the actual behavior and output of this endpoint remain unclear. The x402 challenge is live and well-formed, confirming the endpoint is operational, but consumers should expect to experiment to discover the exact input/output contract.

Capabilities

x402-paymentusdc-settlementbase-networkstripe-invoicespay-per-callno-api-key

Use cases

  • —Retrieving or interacting with Stripe invoice data via a crypto-settled per-call payment
  • —Programmatic access to invoice records without traditional API key provisioning
  • —Agent-driven invoice lookups settled instantly on Base L2

Fit

Best for

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

Not for

  • —Users needing detailed API documentation or guaranteed SLAs before integrating
  • —High-volume batch invoice processing where $0.02/call adds up quickly
  • —Anyone without a Base-compatible USDC wallet

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/stripe/invoices/1 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/stripe/invoices/1
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.35/ 1.00

The x402 challenge is live and well-formed, confirming the endpoint is operational with clear pricing. However, there is no OpenAPI spec, no request/response schema, no documentation beyond a wallet-connect prompt, and the purpose of a 'Stripe invoices' endpoint behind x402 is not explained anywhere. This is effectively a stub listing.

Warnings

  • —No OpenAPI or request/response schema available — input/output contract is unknown
  • —All documentation pages (docs, pricing, api, README) return only 'Connect wallet' with no useful content
  • —The specific purpose and data returned by /api/v1/stripe/invoices/1 is undocumented
  • —The endpoint name 'Premium API Access' is generic and does not describe functionality

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 10:17:15Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-25

Agent access

JSONhttps://clawmart.sh/api/listings/yRqc7T
x402-gated Stripe invoice endpoint on Base, paying per-call in USDC. — Clawmart · Clawmart