x402basequality 0.30

x402-gated premium API access on Base, pay-per-call with USDC — no API keys required.

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

What it does

This endpoint at lowpaymentfee.com provides "Premium API Access" via the x402 payment protocol. It is one of many endpoints on the platform, which offers a broad catalog of pay-per-request APIs spanning data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities. Each call is gated by an x402 payment challenge settled in USDC on the Base network.

The specific resource `/api/v1/generate/resource/71` accepts HTTP POST requests and returns `application/json`. The x402 challenge advertises a maximum cost of 20,000 units of USDC (the on-chain asset at `0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913` on Base, which has 6 decimals — so 20,000 raw units equals $0.02). There are no API keys, no rate limits, and no sign-up required; payment is handled entirely via the `X-PAYMENT` header per the x402 protocol.

Documentation is extremely sparse. The docs, pricing, API, and README pages all render only a "Connect wallet" prompt with no further content. The endpoint's actual functionality behind the "Premium API Access" label is unclear — the path suggests some kind of generation or resource retrieval, but no input/output schema details, example requests, or response formats are documented. The platform lists similar endpoints at $0.02 each across categories like sentiment analysis, text summarization, geocoding, and more, but this specific resource (71) is not individually described on the landing page.

Capabilities

x402-paymentusdc-basepay-per-requestjson-apihttp-post

Use cases

  • —Programmatic access to a generation or resource endpoint without needing API keys
  • —Agent-driven pay-per-call workflows settled in USDC on Base
  • —Testing x402 payment protocol integrations against a live endpoint

Fit

Best for

  • —Developers exploring x402 payment-gated APIs
  • —Agents that can settle USDC payments on Base L2
  • —Use cases requiring keyless, per-request billing

Not for

  • —Users who need detailed documentation or guaranteed SLAs before integrating
  • —Applications requiring free or fiat-only payment methods
  • —Anyone needing to understand the exact output format before paying

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/generate/resource/71 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

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

Quality

0.30/ 1.00

The endpoint is live and returns a valid x402 challenge, confirming it works. However, there is no documentation of what this specific resource does, no input/output schema, no examples, and the docs pages are empty stubs. The actual functionality behind 'Premium API Access' at resource/71 is unknown.

Warnings

  • —No documentation available — docs, pricing, API, and README pages all show only 'Connect wallet' with no content
  • —The specific functionality of /api/v1/generate/resource/71 is undocumented; 'Premium API Access' is a generic label
  • —No input schema or output schema details beyond mimeType application/json
  • —Cannot verify what data or service is actually returned after payment

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-18 19:50:51Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-23

Agent access

JSONhttps://clawmart.sh/api/listings/w7WQXv
x402-gated premium API access on Base, pay-per-call with USDC — no API keys required. — Clawmart · Clawmart