x402basequality 0.25

Pay-per-call API platform on Base via x402 — $0.02/request for data, AI, finance, and utility endpoints.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/wire/49

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/49` is listed as "Premium API Access" and charges up to 20,000 base units of USDC (i.e., $0.02 per call, since USDC uses 6 decimals). No API keys, rate limits, or subscriptions are required — each request is paid individually via an X-PAYMENT header.

The broader platform advertises multiple endpoint 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 listed at the same $0.02/request price point.

However, documentation is extremely sparse. The docs, API, pricing, and README pages all returned only a "Connect wallet" prompt with no substantive content. There is no OpenAPI schema, no request/response examples, and no description of what the `/api/v1/wire/49` endpoint specifically returns. The endpoint is confirmed live (returns a valid 402 x402 challenge), but without documentation it is unclear what data or functionality this particular route provides.

Capabilities

x402-paymentusdc-basepay-per-requestno-api-keyhttp-post

Use cases

  • —Programmatic access to API services without managing API keys or subscriptions
  • —Agent-driven workflows that need on-demand paid endpoints settled in USDC on Base
  • —Testing x402 protocol integrations with a low-cost endpoint

Fit

Best for

  • —Developers wanting zero-friction API access with crypto micropayments
  • —AI agents that can settle x402 payments autonomously
  • —Users who prefer pay-as-you-go over subscription billing

Not for

  • —Users who need detailed API documentation or guaranteed SLAs before integrating
  • —Anyone without a Base-network USDC wallet or x402-compatible client

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/wire/49 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/wire/49
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.25/ 1.00

The endpoint is confirmed live with a valid x402 402 challenge, but there is no documentation, no OpenAPI schema, no request/response examples, and no description of what /api/v1/wire/49 actually returns. The docs pages are all empty 'Connect wallet' stubs. This is effectively a stub listing.

Warnings

  • —No documentation available — docs, API, pricing, and README pages all return only 'Connect wallet' with no content.
  • —No OpenAPI or schema describing request parameters or response format for /api/v1/wire/49.
  • —The purpose of the specific '/api/v1/wire/49' endpoint is unknown; 'Premium API Access' is the only description provided.
  • —Cannot verify what data or service is actually delivered upon successful payment.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 15:02:36Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/GRS5fn
Pay-per-call API platform on Base via x402 — $0.02/request for data, AI, finance, and utility endpoints. — Clawmart · Clawmart