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/27

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/27` is listed as "Premium API Access" and charges up to 20,000 base units of USDC (i.e., $0.02 given USDC's 6 decimals) per call. No API keys, rate limits, or upfront commitments are required — each request is paid for individually via an X-PAYMENT header.

The broader platform advertises endpoints across four 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 listed endpoints share the same $0.02/request pricing.

However, the specific functionality behind `/api/v1/wire/27` is not documented beyond the label "Premium API Access." The docs, pricing, and API pages all render only a "Connect wallet" prompt with no further technical documentation, schemas, or example payloads. Without additional information it is unclear what data or service this particular endpoint returns. The x402 challenge confirms the endpoint is live and accepting payment negotiations, but the actual request/response format remains unknown.

Capabilities

x402-paymentusdc-base-networkpay-per-requestno-api-keyhttp-post

Use cases

  • —Paying per-call for API access without managing API keys or subscriptions
  • —Integrating USDC-settled micropayments into automated agent workflows
  • —Accessing on-demand API services via the x402 payment protocol

Fit

Best for

  • —Developers wanting zero-commitment, pay-as-you-go API access
  • —AI agents that can settle x402 payments autonomously on Base
  • —Users who prefer crypto micropayments over traditional billing

Not for

  • —Users who need detailed API documentation or guaranteed SLAs before purchasing
  • —Anyone without access to USDC on the Base network
  • —High-volume consumers who need bulk pricing or subscription discounts

Quick start

# The endpoint requires an x402 X-PAYMENT header with a USDC payment proof on Base.
# Without payment, it returns a 402 challenge:
curl -X POST https://lowpaymentfee.com/api/v1/wire/27
# Response: 402 with x402 challenge JSON describing payment terms ($0.02 USDC on Base)

Endpoint

URLhttps://lowpaymentfee.com/api/v1/wire/27
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The x402 challenge is live and confirms pricing and payment details, but there is zero documentation on what the endpoint actually does, what request body it expects, or what it returns. The docs/pricing/API pages are all behind a wallet-connect gate with no public content.

Warnings

  • —The specific functionality of /api/v1/wire/27 ('Premium API Access') is completely undocumented — it is unclear what data or service it provides.
  • —All documentation pages (docs, pricing, API, README) render only a 'Connect wallet' prompt with no technical content.
  • —No OpenAPI schema, request/response examples, or input format information is available.
  • —The platform lists many endpoint categories (AI, finance, data, infrastructure) but none have public documentation verifying their actual functionality.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 14:50:08Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

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