Pay-per-call transaction receipt endpoint on Base via x402, settling in USDC at $0.02/request.
What it does
This x402-enabled endpoint at lowpaymentfee.com provides a "Premium API Access" receipt resource for transaction ID 52. It is part of a broader platform offering multiple pay-per-request API categories including data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities — all priced at $0.02 per request with no API keys, no rate limits, and no commitments required.
The specific endpoint `/api/v1/transactions/52/receipt` accepts POST requests and returns JSON. Payment is settled on the Base network using USDC (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) via the x402 "exact" scheme. The max amount required is 20,000 base units of USDC (6 decimals), which equals $0.02 USD. The payment timeout is 300 seconds.
The platform's landing page advertises a wide range of endpoints across analytics, AI inference (sentiment analysis, summarization, classification, embeddings), financial data (price feeds, exchange rates, token quotes, gas estimates), and utility services (geocoding, validation, conversion, generation). However, documentation pages beyond the landing page returned only a "Connect wallet" prompt with no substantive content, so the actual functionality behind this specific receipt endpoint and the broader API suite cannot be independently verified from the crawl data alone.
Capabilities
Use cases
- —Retrieving a transaction receipt for transaction 52 via a single paid API call
- —Demonstrating x402 payment protocol integration for agent-to-service commerce
- —Accessing premium data endpoints without traditional API key management
Fit
Best for
- —Developers experimenting with x402 payment protocol on Base
- —Agents needing pay-per-call access without subscription overhead
- —Low-volume, on-demand API consumption with crypto settlement
Not for
- —High-volume batch processing where per-request fees add up
- —Users without a Base-network USDC wallet
- —Anyone needing detailed API documentation or guaranteed SLAs
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/transactions/52/receipt \
-H "X-PAYMENT: <x402-payment-token>" \
-H "Content-Type: application/json"Endpoint
Quality
The endpoint is live (402 challenge captured) and pricing is clear ($0.02 USDC on Base), but there is no OpenAPI schema, no documentation beyond a landing page, no example request/response bodies, and the purpose of a 'transaction 52 receipt' is unexplained. The docs, pricing, and README pages all returned only 'Connect wallet' with no useful content.
Warnings
- —Documentation pages (/docs, /api, /pricing, /README) all returned only 'Connect wallet' with no substantive content
- —No OpenAPI or schema definition available for request or response bodies
- —The specific purpose of 'transactions/52/receipt' is unclear — it may be a demo or placeholder endpoint
- —No information on what data the receipt actually contains
- —The broader platform advertises many endpoints (AI, finance, utilities) but none could be verified from crawl data
Citations
- —The endpoint returns a 402 challenge with x402Version 1, exact scheme, on Base network using USDC at maxAmountRequired 20000 base unitshttps://lowpaymentfee.com/api/v1/transactions/52/receipt
- —The platform advertises $0.02/request pricing with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Basehttps://lowpaymentfee.com/api/v1/transactions/52/receipt
- —Documentation, pricing, and API pages returned only 'Connect wallet' with no further contenthttps://lowpaymentfee.com/docs