Real-time stock price data for XOM via x402 micropayment on Base, $0.02 per request.
What it does
This x402 endpoint returns the current stock price for ExxonMobil (ticker: XOM) as JSON. It is part of a broader suite of pay-per-call APIs hosted at lowpaymentfee.com, covering finance, analytics, AI/ML, crypto, and utility services. All endpoints use the x402 protocol on the Base network, accepting USDC payments with no API keys, no rate limits, and no subscriptions required.
The endpoint is live and responds with a standard x402 payment challenge. It accepts POST requests and charges a maximum of 20,000 base units of USDC (0.02 USD) per call, settled on the Base L2 network to the specified payTo address. The asset used is USDC at contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913. The response MIME type is application/json.
Documentation on the site is extremely sparse — the docs, pricing, API, and README pages all render only a "Connect wallet" prompt with no additional content. There is no OpenAPI schema, no example request/response payloads, and no detailed documentation for the stock price endpoint specifically. The exact shape of the returned JSON (e.g., whether it includes timestamp, open/close, volume) is unknown and must be discovered by making a paid call.
Capabilities
Use cases
- —Fetching the current ExxonMobil (XOM) stock price for portfolio tracking or trading bots
- —Integrating real-time equity prices into an AI agent workflow without managing API keys
- —Pay-per-call stock data retrieval for low-volume or sporadic use cases
Fit
Best for
- —Agents or apps needing on-demand stock prices without subscription commitments
- —Developers experimenting with x402 protocol micropayments on Base
- —Low-volume consumers who want instant access without registration
Not for
- —High-frequency trading requiring sub-millisecond latency and bulk data
- —Users needing historical OHLCV data, charts, or fundamental analysis
- —Anyone without a Base-compatible USDC wallet
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/stocks/XOM/price \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_header>"Endpoint
Quality
The endpoint is live and returns a valid x402 challenge with clear pricing ($0.02 USDC on Base). However, there is no OpenAPI schema, no example request/response, and the docs pages are empty stubs. The actual response format for the stock price endpoint is entirely unknown.
Warnings
- —No documentation available beyond the landing page — docs, pricing, API, and README pages all show only 'Connect wallet'
- —No OpenAPI or JSON schema describing the response format for the stock price endpoint
- —No example responses available; the exact fields returned are unknown
- —The endpoint URL is hardcoded to ticker XOM — it is unclear whether other tickers are supported at similar paths
Citations
- —The endpoint returns HTTP 402 with an x402 challenge requiring 20000 base units of USDC on Basehttps://lowpaymentfee.com/api/v1/stocks/XOM/price
- —USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base networkhttps://lowpaymentfee.com/api/v1/stocks/XOM/price
- —All endpoints are priced at $0.02 per request with no API keys, no rate limits, and instant accesshttps://lowpaymentfee.com
- —The site offers APIs across Data & Analytics, AI & ML, Finance & Web3, and Infrastructure categorieshttps://lowpaymentfee.com