Costco (COST) earnings data via x402 micropayment on Base for $0.02/request.
What it does
This endpoint at lowpaymentfee.com provides financial earnings data for Costco (ticker: COST) through the x402 payment protocol. It is part of a broader suite of finance and Web3 APIs offered by the same provider, all priced at $0.02 per request and settled in USDC on the Base network.
The endpoint accepts POST requests and returns JSON. Payment is handled inline via the x402 protocol: callers attach an X-PAYMENT header with a signed USDC payment of up to 20,000 base units (i.e., $0.02, since USDC uses 6 decimals) on the Base L2 network. No API keys, rate limits, or upfront commitments are required — access is purely pay-per-call.
Documentation beyond the landing page is extremely sparse. The /docs, /pricing, /api, and /README pages all render only a "Connect wallet" prompt with no additional technical detail. There is no OpenAPI spec, no example request/response, and no description of the earnings data schema returned. The endpoint is confirmed live (402 challenge captured), but the actual data content and structure must be verified by making a paid request.
Capabilities
Use cases
- —Retrieving Costco (COST) earnings data for financial analysis
- —Automated portfolio monitoring that needs per-call earnings lookups
- —AI agents that need on-demand corporate earnings without API key management
Fit
Best for
- —Agents or bots needing quick, keyless access to COST earnings data
- —Pay-per-use financial data consumption without subscriptions
- —x402-native workflows on the Base network
Not for
- —Bulk historical earnings downloads across many tickers (only COST endpoint documented)
- —Users who need detailed API documentation or schema guarantees before integrating
- —Non-crypto users who cannot settle payments in USDC on Base
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/finance/COST/earnings \
-H "X-PAYMENT: <x402-signed-payment-header>" \
-H "Content-Type: application/json"Endpoint
Quality
The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02 USDC on Base), but there is no OpenAPI spec, no request/response schema, no documentation beyond a landing page, and no examples. The actual data returned is unknown, making this effectively a stub listing.
Warnings
- —No OpenAPI or schema documentation available — response format is unknown
- —All documentation pages (/docs, /pricing, /api, /README) render only 'Connect wallet' with no content
- —No example request or response bodies are available; data quality and coverage cannot be verified
- —Only the COST ticker endpoint was probed; it is unclear whether other tickers are supported at similar paths
Citations
- —The endpoint returns a 402 challenge with x402Version 1, accepting USDC on Base network with maxAmountRequired of 20000 base unitshttps://lowpaymentfee.com/api/v1/finance/COST/earnings
- —All APIs on the platform are priced at $0.02 per request with no API keys, no rate limits, and instant access on the Base networkhttps://lowpaymentfee.com
- —The asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 is USDC on Basehttps://lowpaymentfee.com/api/v1/finance/COST/earnings
- —The provider offers Finance & Web3 APIs including price feeds, exchange rates, token quotes, and gas estimateshttps://lowpaymentfee.com