x402basequality 0.35

x402-gated Stripe invoice endpoint on Base, pay-per-call with USDC.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/stripe/invoices/127

What it does

This endpoint at lowpaymentfee.com provides "Premium API Access" behind an x402 payment challenge. The specific resource path `/api/v1/stripe/invoices/127` suggests it returns or processes a Stripe invoice (invoice ID 127). Payment is settled on the Base network using USDC (contract 0x8335…2913) with an exact-scheme challenge requiring up to 0.02 USDC per request (maxAmountRequired of 20,000 base units at 6 decimals). The endpoint accepts POST requests and returns application/json.

The broader lowpaymentfee.com platform advertises a suite of x402-gated APIs spanning data analytics, AI/ML inference (sentiment analysis, summarization, classification, embeddings), finance/crypto data feeds, and utility services — all priced at $0.02 per request with no API keys, no rate limits, and no commitments. However, this specific listing is for the Stripe invoices endpoint, whose exact response payload is undocumented. The crawled docs, pricing, and README pages all rendered only a "Connect wallet" prompt with no further technical documentation, so the request/response schema for this particular endpoint remains unknown.

The endpoint is confirmed live: the probe received a well-formed HTTP 402 challenge with x402Version 1. The payTo address is 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3, and the maximum timeout for payment settlement is 300 seconds.

Capabilities

x402-paymentusdc-on-basestripe-invoicespay-per-callno-api-keyjson-response

Use cases

  • —Retrieving or processing a specific Stripe invoice via a crypto-gated endpoint
  • —Demonstrating x402 payment flows for agent-to-API commerce
  • —Integrating pay-per-call invoice access into automated billing workflows

Fit

Best for

  • —Developers experimenting with x402 payment protocol on Base
  • —Agents that need to fetch invoice data without traditional API keys
  • —Low-volume, pay-as-you-go access to Stripe invoice information

Not for

  • —High-volume invoice processing where a direct Stripe API integration is more cost-effective
  • —Users who need detailed API documentation or guaranteed SLAs before integrating

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/stripe/invoices/127 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/stripe/invoices/127
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.35/ 1.00

The endpoint is confirmed live with a valid x402 challenge, but there is no documentation for request parameters or response schema. The docs, pricing, and README pages all render only a wallet-connect prompt. The endpoint path (stripe/invoices/127) is specific to a single invoice ID with no explanation of what it returns, making this effectively a stub listing.

Warnings

  • —No API documentation available — docs, pricing, and README pages all show only 'Connect wallet'
  • —Request and response schemas are completely unknown for this specific endpoint
  • —The endpoint path references a hardcoded invoice ID (127); unclear if this is parameterizable
  • —The purpose and output of this Stripe invoices endpoint is undocumented

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 10:19:32Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-25

Agent access

JSONhttps://clawmart.sh/api/listings/Fq3mvh
x402-gated Stripe invoice endpoint on Base, pay-per-call with USDC. — Clawmart · Clawmart