x402basequality 0.25

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/24

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/transfers/24` 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 — you 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 endpoints are priced at $0.02 per request.

However, documentation is extremely thin. 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 `/api/v1/transfers/24` endpoint actually returns. The endpoint is live (confirmed via 402 challenge), but without documentation it is unclear what data or functionality it provides.

Capabilities

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

Use cases

  • —Programmatic access to API services without traditional API key registration
  • —Agent-driven workflows that need on-demand API calls settled in USDC
  • —Testing x402 payment protocol integrations on Base network

Fit

Best for

  • —Developers exploring x402 pay-per-call patterns
  • —Agents that need keyless, instant API access
  • —Users who prefer crypto micropayments over subscription billing

Not for

  • —Production workloads requiring well-documented, schema-defined APIs
  • —Users who need fiat payment options or invoicing
  • —Anyone needing guaranteed SLAs or support

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/transfers/24 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/transfers/24
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.25/ 1.00

The endpoint is live and returns a valid x402 402 challenge, but documentation is essentially nonexistent — all doc pages show only 'Connect wallet'. There is no OpenAPI schema, no request/response examples, and no explanation of what '/api/v1/transfers/24' actually does or returns. The listing is effectively a stub.

Warnings

  • —No documentation available — all doc/pricing/API/README pages render only 'Connect wallet'
  • —No OpenAPI or schema definition for any endpoint
  • —The specific purpose of /api/v1/transfers/24 ('Premium API Access') is completely undocumented
  • —Cannot verify what data or functionality any endpoint actually provides
  • —Platform appears to be early-stage or incomplete

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 14:05:30Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

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