Pay-per-call crude oil (CL) price data via x402 on Base, settled in USDC.
What it does
This endpoint returns the current price of crude oil (ticker CL) through a simple POST request, paid per call using the x402 protocol. It is hosted on lowpaymentfee.com, a platform that offers a broad catalog of pay-per-request APIs spanning finance, AI/ML, data analytics, and infrastructure utilities — all settled on the Base network using USDC.
The specific endpoint `/api/v1/stocks/CL/price` sits under the Finance & Web3 category of the platform. The x402 challenge confirms the endpoint is live and accepts exact-scheme payments on Base with a maximum cost of 20,000 base units of USDC (0.02 USD per request). No API keys, subscriptions, or rate limits are required; callers simply attach an x402 payment header to each request. The payment is directed to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` and the asset is USDC at `0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913` on Base.
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 spec, no example request/response payloads, and no description of the response schema. The endpoint name strongly implies it returns a JSON object containing the current crude oil spot or futures price, but the exact fields are unconfirmed.
Capabilities
Use cases
- —Fetching the latest crude oil price for trading bots or dashboards
- —Integrating real-time commodity data into DeFi or Web3 applications
- —Agent-driven portfolio monitoring that needs on-demand oil price lookups
- —Embedding commodity price checks into automated financial workflows
Fit
Best for
- —Developers who want instant, keyless access to crude oil prices
- —AI agents that need pay-per-call commodity data without subscriptions
- —Web3-native applications settling microtransactions on Base
Not for
- —Users needing historical OHLCV candle data or bulk time-series downloads
- —Applications requiring sub-second streaming commodity feeds
- —Users who cannot transact in USDC on the Base network
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/stocks/CL/price \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_token>"Endpoint
Quality
The x402 challenge is live and confirms pricing and payment details, but there is no OpenAPI spec, no documented request/response schema, and all doc pages render only a wallet-connect prompt. The endpoint's behavior must be inferred entirely from its URL path.
Warnings
- —No OpenAPI or schema documentation available — response format is unknown
- —All documentation pages (/docs, /pricing, /api, /README) return only a 'Connect wallet' prompt with no technical content
- —Exact response fields for the CL price endpoint are unconfirmed; listing is partially inferred from the URL path
Citations
- —The endpoint returns HTTP 402 with an x402 challenge advertising USDC payment on Base at 20,000 base units (0.02 USD)https://lowpaymentfee.com/api/v1/stocks/CL/price
- —The platform advertises $0.02/request pricing with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/stocks/CL/price