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/92

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/92` is listed as "Premium API Access" and costs $0.02 per call (20,000 base units of USDC with 6 decimals). No API keys, rate limits, or upfront commitments are required — each request is individually settled on-chain.

The broader platform advertises multiple API categories including 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, the specific functionality of the `/api/v1/transfers/92` endpoint (labeled "Premium API Access") is not documented in the crawled material. The docs, pricing, and API pages all returned only a "Connect wallet" prompt with no further content. Without documentation or an OpenAPI schema, the actual input/output behavior of this endpoint is unknown. The endpoint is confirmed live — it returns a valid x402 402 challenge — but what it returns after payment is unclear.

Capabilities

x402-paymentusdc-base-networkpay-per-requestno-api-keypost-method

Use cases

  • —Paying per-call for API access without needing API keys or subscriptions
  • —Programmatic agent-driven API consumption settled on-chain via USDC on Base
  • —Testing x402 protocol integrations with a low-cost endpoint

Fit

Best for

  • —Developers exploring x402 pay-per-request patterns
  • —AI agents needing keyless, on-demand API access
  • —Users who want to avoid subscription commitments for occasional API calls

Not for

  • —Users who need detailed API documentation before purchasing
  • —High-volume consumers who would benefit from bulk pricing or subscriptions
  • —Anyone requiring non-crypto payment methods

Quick start

# The endpoint requires an X-PAYMENT header with a valid x402 payment proof.
# Using curl (you need an x402-compatible client to generate the payment):
curl -X POST https://lowpaymentfee.com/api/v1/transfers/92 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402_payment_token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/transfers/92
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is confirmed live with a valid x402 402 challenge, but there is no documentation, no OpenAPI schema, no example requests or responses, and the actual functionality behind 'Premium API Access' is completely undocumented. The docs/pricing/API pages are all empty beyond a wallet connect prompt.

Warnings

  • —The specific functionality of /api/v1/transfers/92 ('Premium API Access') is not documented anywhere in the crawled material.
  • —All documentation pages (docs, pricing, API, README) returned only 'Connect wallet' with no useful content.
  • —No OpenAPI schema or response examples are available — the actual output after payment is unknown.
  • —This endpoint path (/api/v1/transfers/92) does not appear in the site's listed API catalog, making its purpose unclear.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 14:18:49Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

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