Pay-per-call stock quote for WMT (Walmart) via x402 on Base, settled in USDC.
What it does
This endpoint at lowpaymentfee.com returns stock data for Walmart (ticker WMT) as a pay-per-request x402 API. It is part of a broader platform offering data, analytics, AI, finance, and utility endpoints, all priced at $0.02 per call with no API keys, no rate limits, and no commitments. Payment is settled on the Base network using USDC (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913).
The x402 challenge confirms the endpoint is live, accepting POST requests and requiring an X-PAYMENT header. The max amount required is 20,000 base units of USDC (6 decimals), which equals $0.02 per request. The response MIME type is application/json. No OpenAPI schema or detailed documentation was found beyond the landing page; the docs, pricing, and API pages all render only a "Connect wallet" prompt with no additional content.
Because no response schema or example output is documented, the exact shape of the stock data returned is unknown. The endpoint path suggests it returns data for the WMT ticker specifically, but whether it provides real-time quotes, historical data, or summary financials cannot be confirmed from available materials.
Capabilities
Use cases
- —Fetching current or recent stock data for Walmart (WMT) without needing an API key or subscription
- —Integrating stock lookups into an AI agent workflow that can settle micropayments on Base
- —Building trading bots or dashboards that pay per request in USDC
Fit
Best for
- —Agents or apps that need occasional stock lookups without subscription overhead
- —Developers who prefer crypto-native pay-per-call billing on Base
- —Quick prototyping where API-key signup is undesirable
Not for
- —High-frequency trading requiring sub-millisecond latency and bulk pricing
- —Users who need comprehensive multi-ticker coverage from a single documented API
- —Anyone without access to USDC on the Base network
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/stocks/WMT \
-H "X-PAYMENT: <x402-payment-token>" \
-H "Content-Type: application/json"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 response examples, no documentation beyond a landing page, and the actual data returned is unknown. This is effectively a stub listing.
Warnings
- —No OpenAPI or response schema available — the shape of the stock data response is unknown
- —Documentation pages (/docs, /pricing, /api, /README) all render only 'Connect wallet' with no useful content
- —It is unclear whether this returns real-time quotes, delayed data, or something else
- —The broader platform lists many endpoints but none have documented schemas
Citations
- —Endpoint returns HTTP 402 with x402 challenge, confirming it is livehttps://lowpaymentfee.com/api/v1/stocks/WMT
- —Price is $0.02 per request (20000 base units USDC, 6 decimals) on Base networkhttps://lowpaymentfee.com/api/v1/stocks/WMT
- —USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/stocks/WMT
- —Platform advertises $0.02/request, no API keys, no rate limits, instant access on Basehttps://lowpaymentfee.com