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 270. It is part of a broader platform offering multiple pay-per-call 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/270/receipt` accepts POST requests and returns JSON. Payment is settled on the Base network using USDC (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) via the x402 "exact" scheme. The maximum 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 lists additional endpoints across four categories — metrics, reports, data export, insights, sentiment analysis, text summarization, classification, embeddings, price feeds, exchange rates, token quotes, gas estimates, geocoding, validation, conversion, and generation — all at the same $0.02 price point. However, no OpenAPI schema, detailed documentation, or example responses were found in the crawl. The docs, API, pricing, and README pages all returned only a "Connect wallet" prompt with no substantive content.
Capabilities
Use cases
- —Retrieving transaction receipts via a pay-per-call model without needing API keys
- —Programmatic access to receipt data settled with USDC on Base
- —Agent-driven workflows that need on-demand transaction documentation
Fit
Best for
- —Developers wanting zero-commitment, pay-as-you-go API access
- —AI agents that can settle x402 payments on Base
- —Users who prefer crypto-native micropayments over subscription billing
Not for
- —Users needing bulk/batch transaction receipt retrieval at volume discounts
- —Anyone without a Base-compatible USDC wallet
- —Use cases requiring detailed API documentation or guaranteed SLAs
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/transactions/270/receipt \
-H "X-PAYMENT: <x402-payment-token>" \
-H "Content-Type: application/json"Endpoint
Quality
The endpoint is live and returns a valid x402 402 challenge with clear pricing. However, there is no OpenAPI schema, no example request/response bodies, and all documentation pages return only a wallet-connect prompt. The specific purpose of this particular receipt endpoint (transaction 270) is unclear, and the broader platform's API functionality is unverifiable beyond the landing page listing.
Warnings
- —No OpenAPI or detailed API documentation available — docs/pricing/README pages all show only 'Connect wallet'
- —The endpoint path references a specific transaction ID (270); it is unclear whether this is a generic pattern or a fixed resource
- —No example responses or request schemas are provided anywhere in the crawl
- —The broader platform lists many endpoints but none could be verified for actual functionality beyond 402 challenges
Citations
- —The endpoint returns a 402 x402 challenge with maxAmountRequired of 20000 base units of USDC on Basehttps://lowpaymentfee.com/api/v1/transactions/270/receipt
- —All APIs are priced at $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —The platform lists endpoints across Data & Analytics, AI & ML, Finance & Web3, and Infrastructure categorieshttps://lowpaymentfee.com
- —USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Basehttps://lowpaymentfee.com/api/v1/transactions/270/receipt