Get the current stock price for Costco (COST) via a pay-per-call x402 endpoint on Base.
What it does
This endpoint returns the current stock price for Costco Wholesale Corporation (ticker: COST) as a JSON response. It is part of the lowpaymentfee.com platform, which offers a variety of pay-per-request APIs spanning finance, AI/ML, data analytics, and utility services — all gated via the x402 payment protocol on the Base network.
The endpoint costs $0.02 per request, paid in USDC on Base (contract 0x8335…2913). There are no API keys, no rate limits, and no subscription commitments — each call is individually settled via an x402 payment header. The x402 challenge confirms the endpoint is live, accepting POST requests, and returning application/json.
The provider's landing page lists many other endpoints at similar pricing, but documentation is extremely thin. The /docs, /pricing, /api, and /README pages all render only a "Connect wallet" prompt with no further technical detail. There is no OpenAPI spec, no example request/response payloads, and no description of the response schema for this stock-price endpoint. As a result, the exact fields returned (e.g., whether it includes bid/ask, volume, timestamp, etc.) are unknown and must be discovered by making a paid call.
Capabilities
Use cases
- —Retrieve the current stock price for Costco (COST) in an automated trading or monitoring pipeline
- —Integrate real-time equity pricing into an AI agent's decision-making workflow without managing API keys
- —Pay-per-call stock data access for low-volume or sporadic usage patterns
Fit
Best for
- —Agents or bots that need on-demand stock prices without subscription overhead
- —Developers experimenting with x402 payment-gated APIs on Base
- —Low-volume consumers who want simple, keyless access to equity data
Not for
- —High-frequency trading requiring sub-millisecond latency and bulk data
- —Users who need historical OHLCV or detailed market depth data (not documented)
- —Anyone without a Base-compatible USDC wallet
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/stocks/COST/price \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>"Endpoint
Quality
The x402 challenge is live and confirms pricing and payment details, but there is zero documentation on request/response schemas, no OpenAPI spec, and all doc pages render only a wallet-connect prompt. The actual data returned is unknown without making a paid call.
Warnings
- —No OpenAPI spec or schema documentation available
- —All documentation pages (/docs, /pricing, /api, /README) render only 'Connect wallet' with no technical content
- —Response schema for the stock price endpoint is completely undocumented — field names, data types, and coverage are unknown
- —The specific endpoint path /api/v1/stocks/COST/price is not listed on the provider's landing page; only /api/v1/finance/prices is shown, so this may be an undocumented or experimental route
Citations
- —The endpoint returns HTTP 402 with an x402 challenge requiring USDC payment on Base networkhttps://lowpaymentfee.com/api/v1/stocks/COST/price
- —The platform charges $0.02 per request with no API keys, no rate limits, and no commitmentshttps://lowpaymentfee.com
- —USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/stocks/COST/price
- —The maxAmountRequired is 20000 base units, which equals $0.02 for a 6-decimal USDC tokenhttps://lowpaymentfee.com/api/v1/stocks/COST/price