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/transfers/39

What it does

lowpaymentfee.com is an x402-enabled API platform that offers a variety of endpoints across data & analytics, AI & machine learning, finance & Web3, and infrastructure utility categories. All endpoints are priced at $0.02 per request, paid in USDC on the Base network with no API keys, rate limits, or commitments required.

The specific endpoint at `/api/v1/transfers/39` is listed as "Premium API Access" but its exact functionality is not documented in the available crawl material. The broader platform advertises endpoints for metrics, reports, data export, insights, sentiment analysis, text summarization, classification, embeddings, price feeds, exchange rates, token quotes, gas estimates, geocoding, validation, conversion, and generation. The x402 challenge confirms the endpoint is live, accepts POST requests, and requires payment of up to 20,000 base units of USDC (0.02 USD) on Base to wallet `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3`.

Documentation is extremely sparse — the docs, API, pricing, and README 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 the `/transfers/39` endpoint actually returns. The platform's landing page is the only substantive source of information.

Capabilities

x402-paymentusdc-base-networkpay-per-requestno-api-keypost-methodjson-response

Use cases

  • —Programmatic access to various utility and data endpoints without API key management
  • —Agent-driven workflows that need on-demand API calls settled in USDC on Base
  • —Exploring x402 payment protocol integration with minimal per-call cost

Fit

Best for

  • —Developers experimenting with x402 payment protocol
  • —Agents needing keyless, pay-per-use API access on Base
  • —Low-cost micropayment API consumption

Not for

  • —Users who need detailed API documentation or guaranteed SLAs
  • —Production workloads requiring well-documented request/response schemas

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/transfers/39 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/transfers/39
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02 USDC on Base), but there is no documentation, no OpenAPI schema, no request/response examples, and the specific purpose of /transfers/39 is undocumented. The docs pages are empty beyond a wallet connect prompt.

Warnings

  • —The specific functionality of /api/v1/transfers/39 is not documented anywhere in the crawl material
  • —All documentation pages (docs, API, pricing, README) render only 'Connect wallet' with no content
  • —No OpenAPI schema or request/response examples available
  • —The endpoint name 'Premium API Access' is generic and does not describe what it does

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 14:15:58Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/whAd5K
Pay-per-call API platform on Base network via x402 — $0.02/request in USDC. — Clawmart · Clawmart