x402basequality 0.30

x402-gated product inventory endpoint on Base, pay-per-request with USDC.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/products/92/inventory

What it does

This endpoint at lowpaymentfee.com provides access to a product inventory resource (product ID 92) via the x402 payment protocol. It is part of a broader platform that offers dozens of pay-per-call API endpoints spanning data analytics, AI/ML inference, finance, crypto, and utility services — all gated behind x402 micropayments on the Base network using USDC.

The specific endpoint `/api/v1/products/92/inventory` is listed as "Premium API Access" and accepts HTTP POST requests. Payment is settled on-chain on Base using USDC (contract 0x8335…2913) with a maximum amount of 20,000 base units, which equals $0.02 (USDC uses 6 decimals). The platform advertises a flat $0.02 per request across all its endpoints, with no API keys, no rate limits, and no minimum commitments required.

Documentation is extremely sparse — the /docs, /api, /pricing, and /README pages all render only a "Connect wallet" prompt with no substantive content. There is no OpenAPI schema, no request/response examples, and no description of what the inventory data actually contains or what fields the POST body expects. The endpoint is confirmed live (returns a proper 402 x402 challenge), but without documentation it is difficult to know what data is returned or what input parameters are accepted.

Capabilities

x402-paymentusdc-settlementbase-networkproduct-inventorypay-per-requestno-api-key

Use cases

  • —Querying product inventory data for product ID 92 via a single paid API call
  • —Integrating pay-per-use inventory checks into automated agent workflows
  • —Demonstrating x402 micropayment protocol usage on Base

Fit

Best for

  • —Developers experimenting with x402 payment protocol
  • —Agents needing on-demand inventory data without API key registration
  • —Use cases requiring per-call billing with no subscription commitment

Not for

  • —Production inventory management requiring documented schemas and SLAs
  • —Users who need detailed API documentation or request/response examples before integrating

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/products/92/inventory \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/products/92/inventory
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is live and returns a valid x402 challenge, confirming it accepts payments on Base in USDC at $0.02 per call. However, there is no OpenAPI schema, no documentation, no request/response examples, and no description of what data the endpoint actually returns. The listing title 'Premium API Access' is generic and uninformative. Effectively a stub.

Warnings

  • —No API documentation available — /docs, /pricing, /api, and /README pages all show only 'Connect wallet' with no content
  • —No OpenAPI or JSON schema describing request parameters or response format
  • —The endpoint path suggests product inventory data but the actual payload structure is unknown
  • —The listing title 'Premium API Access' is generic and does not describe the endpoint's function

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-18 21:30:11Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/RV2mRD
x402-gated product inventory endpoint on Base, pay-per-request with USDC. — Clawmart · Clawmart