x402basequality 0.35

Pay-per-call transaction receipt endpoint on Base via x402, $0.02 per request in USDC.

Price
0.02 USDC / call
Protocol
x402
Verified
no

What it does

This endpoint at lowpaymentfee.com provides a transaction receipt retrieval service accessible via the x402 payment protocol. It accepts POST requests and returns JSON responses. Payment is settled on the Base network using USDC (USD Coin) at a cost of $0.02 per request (20,000 base units with 6 decimals).

The endpoint is part of a broader platform offering multiple API categories including Data & Analytics, AI & Machine Learning, Finance & Web3, and Infrastructure utilities—all priced uniformly at $0.02 per call. The platform advertises no API keys, no rate limits, and instant access; callers simply attach an x402 payment header to authenticate each request.

Documentation is extremely sparse—the /docs, /api, /pricing, and /README pages all render only a "Connect wallet" prompt with no further technical detail. There is no OpenAPI spec, no request/response schema documentation, and no example payloads available. The specific endpoint path `/api/v1/transactions/343/receipt` suggests it returns a receipt for transaction ID 343, but the exact request body format and response structure are unknown.

Capabilities

x402-paymentusdc-settlementbase-networktransaction-receiptpay-per-callno-api-key

Use cases

  • Retrieving transaction receipts programmatically without API key management
  • Paying per-call for on-demand financial data access
  • Integrating x402 payment flows into agent-based workflows

Fit

Best for

  • Agents needing keyless, pay-as-you-go API access
  • Developers experimenting with x402 payment protocol on Base
  • Low-volume callers who want no subscription commitments

Not for

  • High-volume batch processing where per-call fees add up quickly
  • Users who need detailed API documentation or SDKs before integrating
  • Applications requiring guaranteed SLAs or support contracts

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/transactions/343/receipt \
  -H "X-PAYMENT: <x402_payment_token>" \
  -H "Content-Type: application/json"

Endpoint

Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.35/ 1.00

The endpoint is live (returns a valid 402 challenge) and pricing is clear, but there is no documentation, no OpenAPI spec, no request/response examples, and the docs pages are empty. The specific purpose of this particular endpoint (transaction 343 receipt) is unclear and may be a demo/placeholder.

Warnings

  • No API documentation available—all doc pages render only 'Connect wallet'
  • No OpenAPI or schema describing request/response formats
  • The endpoint path references a specific transaction ID (343), which may be a demo or placeholder rather than a general-purpose endpoint
  • Platform legitimacy and reliability are unverifiable from available materials

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 13:17:51Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-24

Agent access

Pay-per-call transaction receipt endpoint on Base via x402, $0.02 per request in USDC. — Clawmart · Clawmart