Real-time stock price data for ITW (Illinois Tool Works) via x402 micropayment on Base.
What it does
This x402 endpoint returns the current stock price for ITW (Illinois Tool Works) in JSON format. It is part of a broader API platform at lowpaymentfee.com that offers data & analytics, AI/ML inference, finance, crypto, and utility endpoints — all payable per-request via the x402 protocol on the Base network using USDC.
The endpoint charges $0.02 per request (20,000 base units of USDC with 6 decimals) and requires no API keys, accounts, or rate-limit management. Callers send an X-PAYMENT header containing a signed x402 payment proof; the server validates it and returns the stock price data. The payment settles on-chain to the provider's address on Base using the "exact" scheme.
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 spec, no sample response schema, and no information about what fields the stock price response contains. The endpoint is confirmed live (returns a proper 402 challenge), but the actual response format must be discovered by making a paid request.
Capabilities
Use cases
- —Retrieve the current stock price of ITW (Illinois Tool Works) programmatically
- —Build trading bots or portfolio dashboards that pull live equity prices
- —Agent-driven financial research that pays per query with no subscription
Fit
Best for
- —Agents or apps needing on-demand stock prices without API key management
- —Developers experimenting with x402 micropayment-gated data APIs
- —Low-volume or sporadic stock price lookups where per-call pricing is cheaper than a subscription
Not for
- —High-frequency trading requiring sub-millisecond latency and bulk data
- —Users who need historical OHLCV candle data or full market depth
- —Anyone without a Base-network USDC wallet to fund x402 payments
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/stocks/ITW/price \
-H "X-PAYMENT: <x402-payment-proof>" \
-H "Content-Type: application/json"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 response schema, no example responses, and the documentation pages are empty stubs. The actual data returned is unknown.
Warnings
- —No OpenAPI or response schema available — response format is undocumented
- —All documentation pages (/docs, /pricing, /README) return only a wallet-connect stub with no content
- —The specific stock ticker (ITW) is hardcoded in the URL; it is unclear whether other tickers are supported at similar paths
- —No sample response is available; the fields returned for a stock price query are unknown
Citations
- —The endpoint returns a 402 challenge with maxAmountRequired of 20000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/stocks/ITW/price
- —The platform charges $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Basehttps://lowpaymentfee.com/api/v1/stocks/ITW/price