Real-time stock price data for DUK (Duke Energy) via x402 micropayment on Base.
What it does
This endpoint provides real-time stock price data for Duke Energy (ticker: DUK) through the x402 payment protocol. It is part of a broader API platform at lowpaymentfee.com that offers data & analytics, AI/ML inference, finance, crypto, and utility endpoints—all gated behind per-request x402 micropayments settled in USDC on the Base network.
The specific endpoint `/api/v1/stocks/DUK/price` accepts POST requests and returns JSON. Each call costs $0.02 (20,000 base units of USDC with 6 decimals) paid via the x402 `X-PAYMENT` header. The platform advertises no API keys, no rate limits, and instant access—you pay per request with no subscriptions or commitments.
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 payloads, and no description of the response schema. The endpoint is confirmed live (returns a proper 402 challenge), but the actual data source, update frequency, and response format are unknown. The platform hosts many other endpoints across finance, AI, and utilities, all at the same $0.02 price point.
Capabilities
Use cases
- —Fetching the current stock price of Duke Energy (DUK) for portfolio tracking or display
- —Integrating real-time equity price data into an AI agent workflow without API key management
- —Building pay-per-call financial dashboards that settle in USDC on Base
Fit
Best for
- —Agents or apps needing on-demand stock price lookups without subscription overhead
- —Developers who want crypto-native pay-per-request access to equity data
- —Low-volume or sporadic stock price queries where flat-rate plans are wasteful
Not for
- —High-frequency trading or bulk historical data retrieval (no documented batch endpoints)
- —Users who need comprehensive financial data (earnings, fundamentals, options chains) beyond a single price quote
- —Anyone without a Base-network USDC wallet or x402-compatible client
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/stocks/DUK/price \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_token>"Endpoint
Quality
The endpoint is confirmed live with a valid 402 challenge and 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 stubs. The actual data source and response format must be inferred entirely.
Warnings
- —No OpenAPI or schema documentation available — response format is unknown
- —Docs, pricing, API, and README pages all render only 'Connect wallet' with no technical content
- —Data source and update frequency for stock prices are undisclosed
- —This endpoint is for a single ticker (DUK); it is unclear if other tickers are available at similar paths
Citations
- —The endpoint returns a 402 challenge with maxAmountRequired of 20000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/stocks/DUK/price
- —The platform advertises $0.02 per request, no API keys, no rate limits, instant access, Base networkhttps://lowpaymentfee.com
- —The USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/stocks/DUK/price
- —Docs, pricing, API, and README pages render only a 'Connect wallet' prompthttps://lowpaymentfee.com/docs