Real-time stock price data for UNH via x402 micropayment on Base, $0.02 per request.
What it does
This endpoint returns the current stock price for UnitedHealth Group (ticker: UNH) through a pay-per-call x402 protocol. It is hosted on lowpaymentfee.com, a platform offering a variety of data, AI, finance, and utility APIs all priced at $0.02 per request, settled in USDC on the Base network. No API keys or accounts are required — callers simply attach an x402 payment header to each POST request.
The specific endpoint `/api/v1/stocks/UNH/price` sits within the platform's Finance & Web3 category. The x402 challenge confirms the endpoint is live, accepting payments of up to 20,000 base units of USDC (0x8335…on Base), which equals $0.02 given USDC's 6 decimals. Payment is sent to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 with a maximum timeout of 300 seconds.
Documentation on the site is extremely sparse — the docs, pricing, and API pages all render only a "Connect wallet" prompt with no additional technical detail. There is no OpenAPI spec, no response schema, and no example payloads available. The endpoint URL pattern (`/stocks/UNH/price`) strongly suggests it returns a JSON object with the current price of UNH stock, but the exact response shape is unconfirmed. The platform advertises no rate limits and instant access.
Capabilities
Use cases
- —Fetching the current stock price of UnitedHealth Group (UNH) programmatically
- —Building trading bots or dashboards that need on-demand equity prices without API key management
- —Agent-driven financial research workflows that pay per query via crypto micropayments
Fit
Best for
- —Developers wanting keyless, pay-per-call stock price data
- —AI agents that can settle x402 payments on Base
- —Low-volume or sporadic stock price lookups where subscription APIs are overkill
Not for
- —High-frequency trading requiring sub-millisecond latency and bulk historical data
- —Users who need comprehensive financial data (fundamentals, filings, options chains) beyond a single price quote
- —Teams that cannot or prefer not to settle payments in USDC on Base
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/stocks/UNH/price \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_token>"Endpoint
Quality
The endpoint is confirmed live via a valid 402 challenge with clear pricing ($0.02 USDC on Base). However, there is no OpenAPI spec, no documented request/response schema, no example payloads, and the docs pages are empty. The listing is largely inferred from the URL pattern and the x402 challenge metadata.
Warnings
- —No OpenAPI or response schema available — the exact response format is unknown
- —Documentation pages (/docs, /pricing, /api, /README) all render only 'Connect wallet' with no technical content
- —The /stocks/UNH/price path is not listed on the homepage's API catalog, which may indicate it is undocumented or experimental
- —No information on data source, update frequency, or market hours coverage for the stock price
Citations
- —The endpoint returns HTTP 402 with an x402 challenge requiring USDC payment on Basehttps://lowpaymentfee.com/api/v1/stocks/UNH/price
- —The platform advertises $0.02 per request, no API keys, no rate limits, instant access, on Base networkhttps://lowpaymentfee.com
- —USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base with maxAmountRequired of 20000 base units (=$0.02)https://lowpaymentfee.com/api/v1/stocks/UNH/price