Stock market quote for DUK via x402 micropayment on Base, $0.02 per request.
What it does
This endpoint provides a market quote for the ticker symbol DUK (Duke Energy Corporation) through the lowpaymentfee.com platform. It is part of a broader suite of finance, analytics, AI, and utility APIs all accessible via the x402 payment protocol on the Base network. Each request costs $0.02 in USDC, settled on-chain with no API keys, no rate limits, and no subscriptions required.
The endpoint accepts HTTP POST requests and returns JSON. Payment is handled via the x402 protocol: callers include an X-PAYMENT header containing a signed payment authorization for 20,000 base units of USDC (0.02 USD, since USDC uses 6 decimals) on the Base L2 network. The payment is directed to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 using the USDC contract at 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913.
Documentation beyond the landing page is sparse — the /docs, /pricing, and /README pages all resolve to a wallet-connect stub with no additional technical detail. There is no OpenAPI schema, no example request/response payloads, and no description of the response format. The endpoint is confirmed live (returns a proper 402 challenge), but the actual data source, response fields, and data freshness are unknown.
Capabilities
Use cases
- —Retrieve a current market quote for Duke Energy (DUK) in an automated trading or research pipeline
- —Agent-driven portfolio monitoring that pays per-call with no subscription
- —Embedding real-time stock data into dashboards or reports without managing API keys
Fit
Best for
- —Agents or bots that need on-demand stock quotes with crypto micropayments
- —Developers who want keyless, pay-per-use market data on Base
- —Low-volume or sporadic access to DUK market data without subscription overhead
Not for
- —High-frequency trading requiring sub-millisecond latency and guaranteed SLAs
- —Users who need bulk historical market data downloads
- —Anyone without a Base-network USDC wallet
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/market/quote/DUK \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-signed-payment-header>"Endpoint
Quality
The endpoint is live and returns a valid x402 402 challenge with clear pricing ($0.02 USDC on Base). However, there is no OpenAPI schema, no documented request/response format, no example payloads, and all documentation pages beyond the landing page are empty wallet-connect stubs. The actual data returned is entirely unknown.
Warnings
- —No API documentation available — /docs, /pricing, and /README pages are empty stubs
- —No OpenAPI or output schema describing the response format for the DUK quote
- —Response fields, data source, and data freshness are completely unknown
- —The broader platform lists many endpoint categories but none have documented schemas
Citations
- —Endpoint returns a valid x402 402 challenge with maxAmountRequired of 20000 base units USDC on Basehttps://lowpaymentfee.com/api/v1/market/quote/DUK
- —Platform advertises $0.02 per request, no API keys, no rate limits, Base networkhttps://lowpaymentfee.com
- —USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Basehttps://lowpaymentfee.com/api/v1/market/quote/DUK
- —Documentation pages (/docs, /pricing, /README) resolve to wallet-connect stubs with no contenthttps://lowpaymentfee.com/docs