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/150

What it does

lowpaymentfee.com is an x402-enabled API platform that offers a broad set of endpoints spanning data analytics, AI/ML inference, finance/Web3 data, and utility services. Every endpoint is priced at $0.02 per request, paid in USDC on the Base network with no API keys, no rate limits, and no upfront commitments. The specific endpoint at `/api/v1/wire/150` is listed as "Premium API Access" and its x402 challenge advertises a max amount of 20,000 base units of USDC (0x8335… on Base), which equals $0.02 given USDC's 6 decimals.

The platform advertises 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). However, the crawled documentation pages (`/docs`, `/api`, `/pricing`, `/README`) all returned only a "Connect wallet" prompt with no actual technical documentation, schemas, or example payloads. As a result, it is unclear what request body this specific `/api/v1/wire/150` endpoint expects or what it returns.

The endpoint is confirmed live: it returns a proper HTTP 402 x402 challenge with version 1, scheme "exact", and a 300-second payment timeout. Payment settles to address `0x1A2B…85F3` on Base. Without documentation or response examples, the actual functionality behind "Premium API Access" at this path remains opaque.

Capabilities

x402-paymentusdc-basepay-per-requestno-api-keyno-rate-limitjson-response

Use cases

  • —Paying per-call for API access without managing API keys or subscriptions
  • —Integrating USDC micropayments into automated agent workflows on Base
  • —Accessing analytics, AI inference, or financial data endpoints on demand

Fit

Best for

  • —Agents or developers wanting zero-commitment, pay-as-you-go API access
  • —x402-compatible wallets and clients on the Base network
  • —Low-volume or bursty workloads where per-request pricing is economical

Not for

  • —Users who need detailed API documentation or guaranteed SLAs before integrating
  • —High-volume production workloads where $0.02/request adds up significantly
  • —Users without a Base-network USDC wallet

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 header):
curl -X POST https://lowpaymentfee.com/api/v1/wire/150 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402_payment_token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/wire/150
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is live and returns a valid x402 challenge, but all documentation pages are empty (showing only 'Connect wallet'). There is no OpenAPI schema, no request/response examples, and the purpose of '/api/v1/wire/150' specifically is undocumented. The listing is effectively a stub with confirmed liveness.

Warnings

  • —All documentation pages (/docs, /api, /pricing, /README) returned no useful content — only 'Connect wallet' prompts.
  • —No OpenAPI or schema available; request and response formats for /api/v1/wire/150 are unknown.
  • —The specific functionality behind 'Premium API Access' at /api/v1/wire/150 is not described anywhere in the crawled material.
  • —The broad category claims (AI, analytics, finance, utilities) on the landing page cannot be independently verified.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 14:47:39Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/wLc5nt