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/transactions/248

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/transactions/248` is listed as "Premium API Access" and costs $0.02 per call (20,000 base units of USDC with 6 decimals). No API keys, accounts, or rate limits are required — callers simply attach an x402 payment header to each request.

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 and settle via USDC on Base.

However, the specific functionality of the `/api/v1/transactions/248` endpoint is unclear. The description simply says "Premium API Access" with no further documentation about what data or service it returns. The docs, pricing, and API pages all render only a "Connect wallet" prompt with no additional content. Without schema details, example responses, or documentation, the actual behavior of this endpoint remains unknown.

Capabilities

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

Use cases

  • —Accessing premium API data without creating an account or managing API keys
  • —Making one-off paid API calls settled instantly in USDC on Base
  • —Agent-driven workflows that need frictionless per-request billing

Fit

Best for

  • —Developers who want zero-signup, pay-as-you-go API access
  • —AI agents with USDC wallets on Base that need programmatic endpoint access
  • —Prototyping workflows where traditional API key management is undesirable

Not for

  • —Users who need detailed documentation or guaranteed SLAs before integrating
  • —High-volume use cases where per-request pricing at $0.02 would be cost-prohibitive compared to subscription plans
  • —Anyone without a Base-compatible USDC wallet

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/transactions/248 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/transactions/248
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is live (returns a valid 402 x402 challenge) and pricing is clear ($0.02 USDC on Base). However, there is no documentation, no OpenAPI schema, no example request/response, and the actual functionality of this specific endpoint (/api/v1/transactions/248) is completely undocumented. The docs/pricing/API pages all render only a wallet-connect prompt with no useful content.

Warnings

  • —The specific functionality of /api/v1/transactions/248 is undocumented — 'Premium API Access' is the only description available.
  • —All documentation pages (docs, pricing, API, README) render only a 'Connect wallet' prompt with no substantive content.
  • —No OpenAPI schema, example requests, or example responses are available.
  • —The endpoint path suggests a transaction-specific resource (ID 248) but its purpose is unknown.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 12:53:54Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-24

Agent access

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