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/83

What it does

This endpoint at lowpaymentfee.com provides "Premium API Access" via the x402 payment protocol. It is one of many endpoints offered by the platform, which spans categories including Data & Analytics, AI & Machine Learning, Finance & Web3, and Infrastructure utilities. All endpoints are priced at $0.02 per request, payable in USDC on the Base network with no API keys, no rate limits, and no commitments required.

The specific endpoint `/api/v1/transactions/83` accepts POST requests and returns application/json responses. Payment is settled on-chain to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 using USDC (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) on Base. The max amount required is 20000 base units, which equals $0.02 (USDC uses 6 decimals). The payment timeout is 300 seconds.

Note that while the platform advertises many endpoints across analytics, AI, finance, and utilities, the specific functionality of this particular `/transactions/83` endpoint is not documented beyond the generic label "Premium API Access." No request/response schema details, example payloads, or detailed documentation were found in the crawl. The docs, API, pricing, and README pages all rendered only a "Connect wallet" prompt with no additional content.

Capabilities

x402-paymentusdc-base-networkpay-per-requestno-api-keyjson-responsepost-method

Use cases

  • —Accessing premium API data without subscription or API key management
  • —Making one-off paid API calls settled in USDC on Base
  • —Integrating pay-per-use endpoints into autonomous agent workflows

Fit

Best for

  • —Developers wanting zero-commitment pay-per-call API access
  • —Agents that can settle x402 payments on Base network
  • —Users who prefer crypto micropayments over traditional billing

Not for

  • —Users who need detailed API documentation before integrating
  • —Applications requiring free or subscription-based access
  • —Users without USDC on Base network

Quick start

# 1. Send POST to the endpoint; receive 402 challenge
curl -X POST https://lowpaymentfee.com/api/v1/transactions/83
# 2. Parse the 402 response, construct X-PAYMENT header with USDC payment proof on Base
# 3. Resend request with valid X-PAYMENT header to access the resource

Endpoint

URLhttps://lowpaymentfee.com/api/v1/transactions/83
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.35/ 1.00

The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02 USDC on Base), but there is no documentation of what this specific endpoint actually does, no request/response schema, and no examples. The platform's docs pages are empty beyond a wallet connect prompt.

Warnings

  • —No documentation available for the specific /api/v1/transactions/83 endpoint beyond the label 'Premium API Access'
  • —All docs/pricing/README pages render only 'Connect wallet' with no useful content
  • —No OpenAPI spec or input/output schema provided
  • —The actual functionality of this endpoint is unknown

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 13:47:36Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

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