USB earnings data via x402 micropayment on Base network, $0.02 per request.
What it does
This endpoint at lowpaymentfee.com provides financial earnings data for the ticker "USB" (likely U.S. Bancorp) through an x402 pay-per-call model. Each request costs $0.02, settled in USDC on the Base network. No API keys or accounts are required — callers simply attach an x402 payment header to a POST request.
The endpoint is part of a broader suite of finance and Web3 APIs offered by lowpaymentfee.com, which also includes price feeds, exchange rates, token quotes, and gas estimates, all at the same $0.02-per-request price point. The platform advertises no rate limits and instant access.
Documentation is extremely sparse. The crawled /docs, /api, /pricing, and /README pages all returned only a "Connect wallet" prompt with no substantive content. There is no OpenAPI schema, no request/response examples, and no description of what fields the earnings endpoint returns. The endpoint is confirmed live (returns a proper 402 x402 challenge), but the actual data format and coverage are unknown. Callers should expect a JSON response but will need to discover the schema empirically by making a paid request.
Capabilities
Use cases
- —Retrieving earnings data for USB (U.S. Bancorp) on demand without an API subscription
- —Integrating stock earnings lookups into an AI agent workflow with automatic crypto micropayments
- —Building financial dashboards that pay per query rather than maintaining API key subscriptions
Fit
Best for
- —Agents or apps needing occasional earnings data without subscription overhead
- —Developers experimenting with x402 pay-per-call finance APIs
- —Crypto-native workflows that can settle USDC on Base
Not for
- —High-volume institutional financial data needs where bulk pricing is required
- —Users who need detailed API documentation and guaranteed SLAs before integrating
- —Anyone unable to transact in USDC on the Base network
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/finance/USB/earnings \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-header>"Endpoint
Quality
The endpoint is confirmed live with a valid 402 x402 challenge, but there is zero documentation on request parameters, response schema, or data coverage. All non-root crawled pages returned only 'Connect wallet' with no useful content. The listing is essentially a stub with pricing and liveness confirmed but nothing else.
Warnings
- —No API documentation available — /docs, /api, /pricing, and /README pages are all empty beyond a wallet connect prompt
- —No OpenAPI schema or response examples; the actual data returned by this endpoint is unknown
- —The ticker 'USB' is inferred to mean U.S. Bancorp but this is not confirmed anywhere in the source material
- —No SLA, rate limit, or data freshness guarantees documented
Citations
- —The endpoint returns a 402 x402 challenge with maxAmountRequired of 20000 base units (USDC, 6 decimals = $0.02) on Base networkhttps://lowpaymentfee.com/api/v1/finance/USB/earnings
- —The platform advertises $0.02 per request, no API keys, no rate limits, instant access, Base networkhttps://lowpaymentfee.com
- —The asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 is USDC on Basehttps://lowpaymentfee.com/api/v1/finance/USB/earnings
- —Finance & Web3 category includes price feeds, exchange rates, token quotes, and gas estimateshttps://lowpaymentfee.com