x402basequality 0.30

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

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/accounts/17

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, rate limits, or subscriptions are required — callers simply attach an x402 payment header to each request.

The specific endpoint at `/api/v1/accounts/17` is listed as "Premium API Access" and returns `application/json`. Its x402 challenge advertises a maxAmountRequired of 20,000 base units of USDC (0x8335… on Base), which equals $0.02 given USDC's 6 decimals. The endpoint accepts POST requests and is discoverable.

The broader platform advertises endpoints for sentiment analysis, text summarization, classification, embeddings, price feeds, exchange rates, token quotes, gas estimates, geocoding, validation, conversion, and data generation — all at the same $0.02 price point. However, documentation beyond the landing page is extremely thin: the /docs, /api, /pricing, and /README pages all render only a "Connect wallet" prompt with no further technical detail. There are no OpenAPI specs, request/response schemas, or usage examples available from the crawled content.

Capabilities

x402-paymentusdc-base-networkpay-per-requestjson-apino-api-keyno-rate-limit

Use cases

  • —Accessing premium API data without managing API keys or subscriptions
  • —Making one-off API calls with instant USDC micropayments on Base
  • —Agent-driven workflows that need pay-as-you-go API access

Fit

Best for

  • —Developers wanting zero-commitment, pay-per-use API access
  • —AI agents that can settle x402 payments autonomously
  • —Users already holding USDC on Base who want frictionless API calls

Not for

  • —Users needing detailed API documentation or OpenAPI specs before integrating
  • —High-volume consumers who would benefit from bulk pricing or subscriptions
  • —Developers without a Base-compatible USDC wallet

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/accounts/17 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/accounts/17
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is live and returns a valid x402 challenge with clear pricing ($0.02 USDC on Base). However, there is no OpenAPI spec, no request/response schema, no documentation, and no examples — the docs pages all render only 'Connect wallet'. The purpose of this specific /accounts/17 endpoint is unclear beyond the generic 'Premium API Access' label.

Warnings

  • —No OpenAPI or schema documentation available — all doc pages render only 'Connect wallet'
  • —The specific purpose of /api/v1/accounts/17 is not documented; 'Premium API Access' is vague
  • —No request body schema or response schema is provided, making integration difficult without trial and error
  • —The platform lists many endpoints on its landing page but none have documented input/output contracts

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 00:16:41Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-24

Agent access

JSONhttps://clawmart.sh/api/listings/F3yHbX