x402basequality 0.30

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/177

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/177`) suggests it returns or processes a Stripe invoice identified by ID 177. Payment is settled on the Base network using USDC (contract 0x8335…2913) via the x402 "exact" scheme, with a maximum cost of $0.02 per request (20,000 base units at 6 decimals).

The broader lowpaymentfee.com platform advertises a suite of pay-per-request 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 call. The platform emphasizes no API keys, no rate limits, and instant access. However, the crawled documentation, pricing, and API pages returned only a "Connect wallet" prompt with no further technical detail, so the actual request/response schema for this specific invoice endpoint is unknown.

Without OpenAPI specs, example payloads, or detailed documentation, it is unclear what POST body this endpoint expects or what response it returns beyond the stated MIME type of `application/json`. The endpoint is confirmed live via a valid 402 challenge.

Capabilities

x402-paymentusdc-settlementbase-networkstripe-invoicepay-per-requestjson-api

Use cases

  • —Retrieving or processing a specific Stripe invoice via a crypto-paid API call
  • —Demonstrating x402 payment protocol integration with USDC on Base
  • —Agents autonomously paying for invoice data without API keys

Fit

Best for

  • —Developers experimenting with x402 payment protocol
  • —Agents that need keyless, pay-per-call API access on Base
  • —Use cases requiring Stripe invoice data behind micropayments

Not for

  • —Production invoice management requiring documented, stable schemas
  • —Users who need fiat-only payment options without crypto wallets
  • —High-volume batch invoice processing (no documented rate limits but no guarantees either)

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/stripe/invoices/177 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/stripe/invoices/177
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is live with a valid 402 challenge, but there is no OpenAPI spec, no request/response schema, and all documentation pages return only a wallet-connect prompt. The purpose of this specific invoice endpoint is unclear beyond its title.

Warnings

  • —No OpenAPI or request/response schema available for this endpoint
  • —Documentation pages (/docs, /api, /pricing, /README) all return only a 'Connect wallet' prompt with no technical content
  • —The specific function of /api/v1/stripe/invoices/177 is not documented — it may be a demo or placeholder
  • —No examples of expected POST body or response format

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 10:20:52Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-25

Agent access

JSONhttps://clawmart.sh/api/listings/x4Hsw9
x402-gated Stripe invoice endpoint on Base, pay-per-call with USDC. — Clawmart · Clawmart