x402basequality 0.35

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

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

What it does

lowpaymentfee.com is an x402-enabled API platform that offers a variety of endpoints across data analytics, AI/ML inference, finance/Web3, and infrastructure utilities. All endpoints are pay-per-request at $0.02 each, settled in USDC on the Base network. No API keys, accounts, or rate limits are required — callers simply attach an x402 payment header to each request.

The specific endpoint being listed here is `/api/v1/orders/71`, described as "Premium API Access." This particular resource charges up to 20,000 base units of USDC (i.e., $0.02 given USDC's 6 decimals) per call, consistent with the platform's uniform pricing. The endpoint accepts POST requests and returns `application/json` responses. Payment is made to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` using the USDC contract on Base (`0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913`).

The platform advertises categories including metrics, reports, data export, insights, sentiment analysis, text summarization, classification, embeddings, price feeds, exchange rates, token quotes, gas estimates, geocoding, validation, conversion, and generation. However, documentation is extremely thin — the docs, API, pricing, and README pages all render only a "Connect wallet" prompt with no further technical detail. There is no OpenAPI spec, no request/response schema documentation, and no usage examples available. The exact functionality behind the `/api/v1/orders/71` endpoint is unclear from the available material.

Capabilities

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

Use cases

  • —Accessing premium API data without needing to register or manage API keys
  • —Making one-off API calls with instant USDC micropayments on Base
  • —Agent-driven workflows that need frictionless pay-per-request access

Fit

Best for

  • —Developers wanting zero-friction API access without accounts or subscriptions
  • —AI agents that can settle x402 payments autonomously
  • —Users who prefer crypto micropayments over traditional billing

Not for

  • —Users who need detailed API documentation or OpenAPI specs before integrating
  • —High-volume consumers who want bulk pricing or subscription discounts
  • —Developers who cannot transact in USDC on the Base network

Quick start

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

Endpoint

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

Quality

0.35/ 1.00

The endpoint is live (402 challenge captured) and pricing is clear ($0.02 USDC on Base). However, there is no OpenAPI spec, no documentation beyond a landing page, no request/response schemas, and no examples. The specific purpose of /api/v1/orders/71 ('Premium API Access') is not explained anywhere. This is effectively a stub listing.

Warnings

  • —No OpenAPI specification or schema documentation available
  • —Docs, API, pricing, and README pages all render only 'Connect wallet' with no content
  • —The exact functionality of /api/v1/orders/71 is undocumented — 'Premium API Access' is the only description
  • —No request body schema or response schema is documented anywhere
  • —Cannot verify what data or service this endpoint actually provides

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-18 21:46:33Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-25

Agent access

JSONhttps://clawmart.sh/api/listings/ncX9ss
Pay-per-request API platform on Base network via x402 — $0.02/call in USDC. — Clawmart · Clawmart