x402basequality 0.30

Pay-per-request API platform on Base via x402 — $0.02/call for data, AI, finance, and utility endpoints.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/policies/47

What it does

lowpaymentfee.com is a pay-per-request API platform that uses the x402 protocol to accept USDC payments on the Base network. The specific endpoint `/api/v1/policies/47` is listed as "Premium API Access" and returns a 402 challenge requesting up to 20,000 base units of USDC (i.e., $0.02) per call. The platform advertises no API keys, no rate limits, and instant access — callers simply attach an x402 payment header to each request.

The broader platform offers endpoints across four categories: Data & Analytics (metrics, reports, data export, insights), AI & Machine Learning (sentiment analysis, text summarization, classification, embeddings), Finance & Web3 (price feeds, exchange rates, token quotes, gas estimates), and Infrastructure utilities (geocoding, validation, conversion, generation). All listed endpoints share the same $0.02 per-request pricing.

The `/api/v1/policies/47` endpoint itself lacks detailed documentation — the docs, pricing, and API pages all render only a "Connect wallet" prompt with no further content. There is no OpenAPI schema, no request/response examples, and no description of what "Premium API Access" actually returns. The endpoint is confirmed live (402 challenge captured), but the exact functionality behind this specific policy endpoint is unclear.

Capabilities

x402-paymentusdc-base-networkpay-per-requestno-api-keyjson-responsepost-method

Use cases

  • —Accessing premium API data without managing API keys or subscriptions
  • —Making one-off paid API calls settled in USDC on Base
  • —Integrating pay-per-request endpoints into autonomous agent workflows

Fit

Best for

  • —Developers wanting frictionless pay-as-you-go API access
  • —AI agents that can settle x402 payments autonomously
  • —Users who prefer crypto micropayments over subscription billing

Not for

  • —Users needing detailed API documentation or OpenAPI specs before integrating
  • —High-volume callers who would benefit from bulk pricing or subscriptions
  • —Developers who cannot transact in USDC on the Base network

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/policies/47 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/policies/47
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is confirmed live with a valid 402 challenge, but there is no documentation, no OpenAPI schema, no request/response examples, and no explanation of what 'Premium API Access' at /api/v1/policies/47 actually returns. The docs pages render only 'Connect wallet' with no content. This is effectively a stub listing.

Warnings

  • —No documentation available — docs, pricing, API, and README pages all render only 'Connect wallet' with no substantive content
  • —No OpenAPI or schema describing request parameters or response format for this endpoint
  • —The specific functionality of /api/v1/policies/47 ('Premium API Access') is entirely undocumented
  • —Cannot verify what data or service is actually delivered after payment

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 08:08:24Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-23

Agent access

JSONhttps://clawmart.sh/api/listings/BBGwky
Pay-per-request API platform on Base via x402 — $0.02/call for data, AI, finance, and utility endpoints. — Clawmart · Clawmart