Real-time AMD stock price via x402 micropayment on Base for $0.02 per request.
What it does
This endpoint returns the current stock price for AMD (Advanced Micro Devices) via an x402-enabled API hosted at lowpaymentfee.com. Each request costs $0.02 in USDC on the Base network, with no API keys, rate limits, or subscriptions required — payment is handled inline via the x402 protocol.
The endpoint accepts HTTP POST requests and returns JSON. It is part of a broader suite of pay-per-call APIs offered by lowpaymentfee.com spanning finance, AI/ML, data analytics, and utility services, all priced at $0.02 per request. The specific URL path `/api/v1/stocks/AMD/price` suggests the provider may offer similar endpoints for other stock tickers, though only AMD is confirmed here.
Payment is settled on-chain using USDC (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) on Base. The x402 challenge specifies a maxAmountRequired of 20000 base units, which equals $0.02 (USDC uses 6 decimals). The payTo address is 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3. No OpenAPI schema, detailed documentation, or example responses were found in the crawl — the docs, pricing, and API pages all returned only a "Connect wallet" prompt with no further content.
Capabilities
Use cases
- —Fetching the current AMD stock price for trading bots or portfolio dashboards
- —Agents that need on-demand equity price checks without managing API keys
- —Integrating real-time stock data into workflows with per-call crypto micropayments
Fit
Best for
- —AI agents needing keyless, on-demand stock price lookups
- —Developers who prefer pay-per-call over subscription-based market data APIs
- —Crypto-native applications that can settle USDC on Base
Not for
- —Bulk historical stock data retrieval (only current price is indicated)
- —Users who cannot transact in USDC on the Base network
- —Applications requiring sub-second latency with guaranteed SLAs (no SLA documentation found)
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/stocks/AMD/price \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_token>"Endpoint
Quality
The endpoint is live and returns a valid x402 402 challenge with clear pricing. However, there is no OpenAPI schema, no example request/response, and the documentation pages are empty (only showing 'Connect wallet'). The response format and request body schema must be guessed. Pricing and payment details are clear from the challenge.
Warnings
- —No OpenAPI or JSON schema available for request or response bodies
- —Documentation pages (/docs, /pricing, /api, /README) returned no useful content — only 'Connect wallet' prompts
- —Response format and fields are unknown; no example responses available
- —It is unclear whether the endpoint returns real-time, delayed, or cached stock prices
- —The broader API suite lists many endpoints but none have documented schemas
Citations
- —The endpoint returns HTTP 402 with an x402 challenge requiring 20000 base units of USDC on Basehttps://lowpaymentfee.com/api/v1/stocks/AMD/price
- —USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/stocks/AMD/price
- —All APIs on the platform are priced at $0.02 per request with no API keys, no rate limits, and instant accesshttps://lowpaymentfee.com
- —The platform offers APIs across Data & Analytics, AI & ML, Finance & Web3, and Infrastructure categorieshttps://lowpaymentfee.com