Real-time stock price data for MCD (McDonald's) via x402 micropayment on Base, $0.02/request.
What it does
This endpoint returns the current stock price for McDonald's (ticker: MCD) through the lowpaymentfee.com platform. It uses the x402 payment protocol, settling in USDC on the Base network. Each request costs $0.02 (20,000 base units of USDC with 6 decimals). No API keys or accounts are required — callers simply attach an X-PAYMENT header with a valid x402 payment proof.
The endpoint is part of a broader suite of pay-per-call APIs offered by lowpaymentfee.com spanning data analytics, AI/ML inference, finance, crypto, and utility services, all priced at $0.02 per request. The platform advertises no rate limits and instant access. The specific response schema for the stock price endpoint is not documented, but the endpoint accepts HTTP POST requests and returns application/json.
Note that documentation on the site is extremely thin — 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 response payload beyond the MIME type. Callers should expect a JSON object containing price information for MCD, but the exact fields are unknown.
Capabilities
Use cases
- —Retrieving the current McDonald's (MCD) stock price in an automated trading or analytics pipeline
- —Agents that need on-demand equity price lookups without managing API keys or subscriptions
- —Building dashboards or alerts that pull live stock prices with per-call micropayments
Fit
Best for
- —AI agents needing keyless, pay-per-call stock price data
- —Low-volume or sporadic stock price lookups where subscription APIs are overkill
- —Crypto-native workflows that can settle USDC on Base
Not for
- —High-frequency trading requiring sub-millisecond latency and bulk data feeds
- —Users who need historical OHLCV candle data or full market depth
- —Callers without a Base-network USDC wallet or x402-compatible client
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/stocks/MCD/price \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_proof>"Endpoint
Quality
The endpoint is live (402 challenge captured) and pricing is clear ($0.02 USDC on Base), but there is no OpenAPI spec, no documented request/response schema, no example payloads, and the site's docs/pricing/README pages are all empty beyond a wallet-connect prompt. Effectively a stub listing.
Warnings
- —No OpenAPI or schema documentation available — response payload structure is unknown
- —Docs, pricing, API, and README pages on the site contain no usable content (only 'Connect wallet')
- —No example request or response bodies could be sourced
- —Actual data source for MCD stock price is unspecified — accuracy and freshness are unknown
Citations
- —Endpoint returns HTTP 402 with x402 challenge requesting 20000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/stocks/MCD/price
- —USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/stocks/MCD/price
- —All APIs priced at $0.02 per request with no API keys, no rate limits, and instant accesshttps://lowpaymentfee.com
- —Platform offers APIs across Data & Analytics, AI & ML, Finance & Web3, and Infrastructure categorieshttps://lowpaymentfee.com