DUK stock earnings data via x402 micropayment on Base for $0.02/request
What it does
This endpoint provides earnings data for the ticker symbol DUK (Duke Energy Corporation) through the lowpaymentfee.com finance API. It is part of a broader platform offering data & analytics, AI/ML, finance/Web3, and infrastructure endpoints, all priced at $0.02 per request and settled via x402 micropayments in USDC on the Base network.
The endpoint is live and returns a standard x402 challenge (HTTP 402) requiring an X-PAYMENT header with a payment proof. The maximum amount required is 20,000 base units of USDC (0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base), which equals $0.02 given USDC's 6 decimals. Payment is sent to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 with a timeout of 300 seconds. The endpoint accepts POST requests and returns application/json.
Documentation beyond the landing page is extremely sparse — the /docs, /pricing, /api, and /README pages all render only a "Connect wallet" prompt with no additional technical detail. There is no OpenAPI schema, no description of request parameters, and no sample response. The exact structure of the earnings data returned (e.g., quarterly vs. annual, EPS, revenue) cannot be confirmed from available materials.
Capabilities
Use cases
- —Retrieving Duke Energy (DUK) earnings data for financial analysis
- —Integrating stock earnings into automated trading or research pipelines
- —Agent-driven financial data retrieval with per-call micropayments
Fit
Best for
- —Developers needing on-demand stock earnings data without API key management
- —AI agents that can settle x402 payments autonomously on Base
- —Low-volume or sporadic financial data queries where per-request pricing is preferable to subscriptions
Not for
- —High-frequency bulk earnings data retrieval (no documented batch endpoint)
- —Users who need detailed API documentation or guaranteed SLA before integrating
- —Non-crypto users who cannot settle USDC payments on Base
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/finance/DUK/earnings \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_proof>"Endpoint
Quality
The endpoint is live and returns a valid x402 challenge with clear pricing, but there is no OpenAPI schema, no request/response documentation, and no examples. The docs pages are empty beyond a wallet connect prompt, making it impossible to confirm what data is actually returned.
Warnings
- —No API documentation available — /docs, /api, /pricing, and /README pages all show only 'Connect wallet'
- —No OpenAPI or JSON schema describing request parameters or response format
- —Exact earnings data fields (EPS, revenue, quarterly/annual) are unknown
- —The specific endpoint path suggests ticker-specific data for DUK but this is inferred from the URL pattern only
Citations
- —The endpoint returns a 402 challenge with maxAmountRequired of 20000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/finance/DUK/earnings
- —All endpoints on the platform are priced at $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —The USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/finance/DUK/earnings