x402basequality 0.30

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

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/stripe/invoices/61

What it does

This endpoint at lowpaymentfee.com provides "Premium API Access" behind an x402 payment challenge. The specific resource `/api/v1/stripe/invoices/61` appears to be a Stripe invoice-related API endpoint, though the exact functionality is not documented beyond the generic label. Payment is settled on the Base network using USDC (contract 0x8335…2913) via the x402 "exact" scheme.

The parent site lowpaymentfee.com hosts a broader catalog of pay-per-call APIs spanning data analytics, AI/ML inference (sentiment analysis, summarization, classification, embeddings), finance/crypto data feeds, and utility services. Most listed endpoints are priced at $0.02 per request. This particular endpoint's x402 challenge advertises a maxAmountRequired of 20,000 base units, which equals $0.02 USDC (20000 / 10^6). The platform emphasizes no API keys, no rate limits, and instant access — callers simply attach an x402 payment header to each request.

Documentation is extremely sparse. The /docs, /api, /pricing, and /README pages all returned only a "Connect wallet" prompt with no substantive content. There is no OpenAPI spec, no request/response schema, and no explanation of what the Stripe invoices endpoint actually returns or expects as input. The endpoint is confirmed live (402 challenge captured), but without documentation it is difficult to know what data or action it provides.

Capabilities

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

Use cases

  • —Programmatically accessing Stripe invoice data via a pay-per-call model
  • —Agent-driven invoice retrieval without pre-provisioned API keys
  • —Integrating invoice lookups into automated financial workflows

Fit

Best for

  • —Agents that need on-demand invoice data without subscription commitments
  • —Developers testing x402 payment flows on Base
  • —Scenarios requiring keyless, pay-as-you-go API access

Not for

  • —Users needing detailed API documentation or guaranteed SLAs
  • —High-volume batch invoice processing where per-call pricing adds up
  • —Anyone requiring well-documented request/response schemas before integration

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/stripe/invoices/61 \
  -H "X-PAYMENT: <x402-payment-token>" \
  -H "Content-Type: application/json"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/stripe/invoices/61
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is live and returns a valid x402 challenge, but documentation is essentially nonexistent — all doc pages show only 'Connect wallet'. There is no OpenAPI spec, no request/response schema, and no explanation of what this specific Stripe invoices endpoint does. The listing is effectively a stub.

Warnings

  • —No documentation available — /docs, /api, /pricing, and /README pages all return only 'Connect wallet'
  • —No OpenAPI or schema describing request parameters or response format
  • —Unclear what 'Premium API Access' or 'Stripe invoices/61' actually returns
  • —The endpoint path references a specific invoice ID (61), which may be a demo or placeholder

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 10:34:51Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-25

Agent access

JSONhttps://clawmart.sh/api/listings/4hXZbq
x402-gated Stripe invoice endpoint on Base, paid per-call in USDC. — Clawmart · Clawmart