x402basequality 0.35

Pay-per-call premium API access on Base via x402 — $0.02/request in USDC.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/products/71

What it does

This endpoint at lowpaymentfee.com provides "Premium API Access" via the x402 payment protocol. The specific resource `/api/v1/products/71` is one of many endpoints offered by the platform, which spans categories including Data & Analytics, AI & Machine Learning, Finance & Web3, and Infrastructure utilities. All endpoints on the platform are priced at $0.02 per request, settled in USDC on the Base network with no API keys, rate limits, or commitments required.

The x402 challenge confirms the endpoint is live and accepts POST requests. Payment is made in USDC (contract 0x8335…2913 on Base) to address 0x1A2B…85F3, with a maximum amount of 20,000 base units (i.e., $0.02 given USDC's 6 decimals). The response MIME type is application/json. The timeout for payment settlement is 300 seconds.

While the platform advertises a broad suite of APIs (metrics, reports, sentiment analysis, summarization, classification, embeddings, price feeds, exchange rates, geocoding, validation, conversion, and generation), the specific functionality behind `/api/v1/products/71` is not documented beyond the label "Premium API Access." No OpenAPI schema, request/response examples, or detailed documentation were found in the crawl. The docs, pricing, API, and README pages all returned only a "Connect wallet" prompt with no substantive content.

Capabilities

x402-paymentusdc-basepay-per-requestjson-responseno-api-keypost-method

Use cases

  • —Accessing premium data or services with per-request USDC micropayments on Base
  • —Agent-driven API consumption without pre-registration or API keys
  • —Programmatic pay-as-you-go access to a multi-category API platform

Fit

Best for

  • —Developers or agents wanting zero-commitment, per-call API access
  • —x402-compatible clients on the Base network
  • —Use cases requiring no rate limits and instant access

Not for

  • —Users needing detailed documentation or OpenAPI specs before integration
  • —Anyone without a Base-network USDC wallet or x402-compatible client
  • —Production workloads requiring SLA guarantees or support

Quick start

# The endpoint requires an X-PAYMENT header with a valid x402 payment proof.
# Using curl as a conceptual example (actual payment header generation requires an x402 client):
curl -X POST https://lowpaymentfee.com/api/v1/products/71 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402_payment_token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/products/71
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.35/ 1.00

The endpoint is confirmed live via a valid 402 challenge, and pricing is clear ($0.02 USDC on Base). However, there is no documentation, no OpenAPI schema, no request/response examples, and the specific functionality of /api/v1/products/71 is unknown beyond its label. The docs and other pages returned no useful content.

Warnings

  • —The specific functionality of /api/v1/products/71 ('Premium API Access') is undocumented — it is unclear what data or service it returns.
  • —No OpenAPI spec, request schema, or response schema is available.
  • —All documentation pages (docs, pricing, API, README) returned only a 'Connect wallet' prompt with no substantive content.
  • —The platform lists many endpoint categories but none have detailed docs; actual availability and quality are unverified.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-18 21:09:07Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-23

Agent access

JSONhttps://clawmart.sh/api/listings/DA8TsK
Pay-per-call premium API access on Base via x402 — $0.02/request in USDC. — Clawmart · Clawmart