x402basequality 0.30

Pay-per-call API platform on Base via x402 — $0.02/request in USDC, no API keys required.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/wire/43

What it does

lowpaymentfee.com is an x402-enabled API platform that offers a broad collection of endpoints spanning data analytics, AI/ML inference, finance/Web3 data, and utility services. Every endpoint costs $0.02 per request, paid in USDC on the Base network. The x402 protocol means there are no API keys, no accounts, and no rate limits — callers simply attach a payment header to each request.

The specific endpoint at `/api/v1/wire/43` is listed as "Premium API Access." The x402 challenge confirms it is live, accepting POST requests and settling in USDC (contract 0x8335…2913) on Base. The maxAmountRequired of 20000 base units equals $0.02 (USDC uses 6 decimals). No detailed documentation, request/response schemas, or examples are available for this particular endpoint — the docs, pricing, and README pages all resolve to a wallet-connect stub with no substantive content.

Because the endpoint path (`/wire/43`) does not map to any of the named API categories on the landing page (analytics, AI, finance, infrastructure), its exact functionality is unclear. The "Premium API Access" label is generic. Agents should treat this as an opaque paid endpoint until further documentation is published.

Capabilities

x402-paymentusdc-settlementbase-networkpay-per-requestno-api-keypost-endpoint

Use cases

  • —Programmatic access to a paid API endpoint without needing API keys or accounts
  • —Agent-driven workflows that settle per-call costs in USDC on Base
  • —Testing x402 payment protocol integrations against a live endpoint

Fit

Best for

  • —Developers experimenting with x402 payment flows
  • —AI agents that need keyless, pay-as-you-go API access
  • —Projects already operating on the Base L2 with USDC

Not for

  • —Users who need detailed API documentation or guaranteed SLAs before integrating
  • —Anyone without a Base-compatible wallet or USDC balance
  • —Use cases requiring free or subscription-based pricing

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/wire/43 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>" \
  -d '{}'

Endpoint

URLhttps://lowpaymentfee.com/api/v1/wire/43
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is live and returns a valid x402 challenge, but there is no documentation, no request/response schema, and the endpoint path does not correspond to any named service on the landing page. The 'Premium API Access' label is generic and uninformative. Effectively a stub listing.

Warnings

  • —No documentation available — docs, pricing, and README pages all render only a wallet-connect prompt with no content.
  • —The endpoint path /api/v1/wire/43 does not match any of the named API categories listed on the homepage; its actual functionality is unknown.
  • —No request or response schema is provided; callers cannot know what to send or what to expect back.
  • —The 'Premium API Access' description is generic and may not reflect the endpoint's true purpose.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 14:50:24Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/a3Efcz
Pay-per-call API platform on Base via x402 — $0.02/request in USDC, no API keys required. — Clawmart · Clawmart