x402basequality 0.35

Pay-per-call premium API access on Base network via x402 protocol at $0.02/request in USDC.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/transactions/51

What it does

This endpoint at lowpaymentfee.com provides "Premium API Access" via the x402 payment protocol. The specific endpoint `/api/v1/transactions/51` is one of many API endpoints offered by the platform, which spans categories including Data & Analytics, AI & Machine Learning, Finance & Web3, and Infrastructure utilities.

The platform operates on a simple pay-per-request model at $0.02 per call (20,000 base units of USDC on Base network, which has 6 decimals). No API keys, rate limits, or commitments are required — callers simply attach an x402 payment header with each request. Payment is settled in USDC (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) on the Base L2 network to the recipient address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3.

The specific functionality of the `/api/v1/transactions/51` endpoint is unclear from available documentation — it may relate to a transaction lookup or a specific resource within the platform's transaction system. The broader platform advertises endpoints for metrics, reports, data export, insights, sentiment analysis, text summarization, classification, embeddings, price feeds, exchange rates, token quotes, gas estimates, geocoding, validation, conversion, and generation. Documentation pages beyond the landing page returned only "Connect wallet" content, providing no additional technical detail about request/response schemas.

Capabilities

x402-paymentusdc-settlementbase-networkpay-per-requestno-api-keyno-rate-limit

Use cases

  • —Accessing premium API endpoints without subscription or API key management
  • —Making one-off paid API calls settled in USDC on Base
  • —Agent-driven programmatic access to various utility and data endpoints

Fit

Best for

  • —Developers wanting zero-commitment pay-per-use API access
  • —AI agents needing x402-compatible endpoints on Base
  • —Users who prefer crypto-native payment rails over traditional billing

Not for

  • —Users needing detailed API documentation or guaranteed SLAs
  • —High-volume use cases where per-request pricing at $0.02 becomes expensive
  • —Users without USDC on Base network

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/transactions/51 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/transactions/51
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.35/ 1.00

The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02/request in USDC on Base). However, there is no documentation on what this specific endpoint does, no request/response schema, and the docs/pricing/README pages all returned only 'Connect wallet' with no useful content.

Warnings

  • —No documentation available for the specific /api/v1/transactions/51 endpoint — its purpose is unclear
  • —All documentation pages (docs, pricing, README, api) returned only 'Connect wallet' with no technical content
  • —No OpenAPI schema or request/response examples available
  • —The exact functionality behind 'Premium API Access' at this path is unspecified

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 13:53:18Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/87MbyW
Pay-per-call premium API access on Base network via x402 protocol at $0.02/request in USDC. — Clawmart · Clawmart