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/wire/39

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/wire/39` is listed as "Premium API Access" and accepts POST requests. The x402 challenge confirms it is live, requiring up to 20,000 base units of USDC (0.02 USD) per call, settled to an on-chain address.

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 with no API keys, no rate limits, and no minimum commitments.

However, the specific endpoint `/api/v1/wire/39` does not clearly map to any of the named API categories on the landing page. There is no documentation, OpenAPI schema, or example request/response available for this endpoint. The docs, pricing, and API pages all returned only a "Connect wallet" prompt with no further content. Without knowing what this endpoint actually returns, callers should treat it as an opaque premium access endpoint until more documentation surfaces.

Capabilities

x402-paymentusdc-base-networkpay-per-requesthttp-postjson-response

Use cases

  • —Programmatic access to a pay-per-call API without API key management
  • —Agent-driven workflows that settle per-request costs in USDC on Base
  • —Testing x402 protocol integrations with a low-cost endpoint

Fit

Best for

  • —Developers experimenting with x402 payment protocol
  • —AI agents that need keyless, pay-as-you-go API access
  • —Users who prefer crypto micropayments over subscription billing

Not for

  • —Users who need detailed API documentation or schemas before integrating
  • —High-volume use cases where $0.02/request adds up without bulk discounts
  • —Anyone without a Base-network USDC wallet

Quick start

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

Endpoint

URLhttps://lowpaymentfee.com/api/v1/wire/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). However, there is no documentation, no OpenAPI schema, no example requests or responses, and the specific wire/39 endpoint's purpose is undocumented. The docs/pricing/API pages are empty beyond a wallet connect prompt. This is effectively a stub listing.

Warnings

  • —No documentation available — docs, pricing, and API pages only show 'Connect wallet'
  • —The endpoint /api/v1/wire/39 does not correspond to any named API on the landing page; its actual functionality is unknown
  • —No OpenAPI schema, no input/output examples, no error documentation
  • —No robots.txt or agents.txt present

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 15:01:25Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

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