x402basequality 0.30

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/20

What it does

This endpoint at lowpaymentfee.com provides premium API access via the x402 payment protocol. The specific path `/api/v1/stripe/invoices/20` suggests a Stripe invoice-related resource, though the exact response payload is not documented. Payment is settled on the Base network using USDC (contract 0x8335…2913) with a max amount of 20,000 base units, which equals $0.02 per request (USDC uses 6 decimals).

The provider's landing page advertises a broad catalog of x402-gated APIs spanning data & analytics, AI/ML inference (sentiment, summarization, classification, embeddings), finance & Web3 (price feeds, exchange rates, token quotes, gas estimates), and infrastructure utilities (geocoding, validation, conversion, generation) — all at the same $0.02/request price point. The site emphasizes no API keys, no rate limits, and instant access. However, documentation pages beyond the landing page returned only a "Connect wallet" prompt with no substantive content.

Because there is no OpenAPI schema, no request/response examples, and no documentation describing what this specific invoice endpoint accepts or returns, the actual functionality remains unclear. The x402 challenge is live and well-formed, confirming the endpoint is operational and accepting payment via the x402 protocol. The POST method is specified in the outputSchema. Agents should be aware that the lack of input/output documentation makes integration speculative.

Capabilities

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

Use cases

  • —Programmatically accessing Stripe invoice data via x402 micropayment
  • —Integrating pay-per-request invoice lookups into agent workflows
  • —Demonstrating x402 protocol payment flows on Base network

Fit

Best for

  • —Agents needing x402-compatible invoice endpoints on Base
  • —Developers exploring x402 protocol integrations
  • —Low-cost per-request API access without API key management

Not for

  • —Production invoice workflows requiring documented schemas and SLAs
  • —Use cases needing detailed Stripe invoice manipulation (create, update, void)
  • —Applications requiring guaranteed uptime and rate limit transparency

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/stripe/invoices/20 \
  -H "X-PAYMENT: <x402-payment-token>" \
  -H "Content-Type: application/json"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/stripe/invoices/20
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The x402 challenge is live and well-formed, confirming the endpoint is operational. However, there is no OpenAPI schema, no request/response documentation, and all doc pages return only 'Connect wallet' with no content. The actual functionality of the /stripe/invoices/20 path is undocumented, making this effectively a stub listing.

Warnings

  • —No OpenAPI or schema documentation available for this endpoint
  • —All documentation pages (docs, api, pricing, README) return only 'Connect wallet' with no substantive content
  • —Exact request body format and response structure are unknown
  • —The specific purpose of /api/v1/stripe/invoices/20 is not explained anywhere in the crawled material

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 10:37:40Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-25

Agent access

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