Pay-per-call stock data for REGN via x402 on Base, settled in USDC at $0.02/request.
What it does
This endpoint at lowpaymentfee.com provides stock data for Regeneron Pharmaceuticals (ticker: REGN) through an x402-gated API. Each call costs $0.02 in USDC on the Base network — the x402 challenge advertises a maxAmountRequired of 20,000 base units of USDC (6 decimals), which equals $0.02. No API keys or accounts are needed; payment is handled inline via the x402 protocol's X-PAYMENT header.
The provider operates a broader platform offering dozens of endpoints across data analytics, AI/ML inference, finance, crypto, and utility categories, all priced uniformly at $0.02 per request. The specific endpoint probed here (`/api/v1/stocks/REGN`) is a stock-data endpoint, though the crawled landing page does not list it explicitly among the advertised routes. The endpoint is live and returns a proper 402 challenge with x402 version 1, accepting the "exact" payment scheme on Base mainnet, paying to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3, with USDC contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913.
Documentation is extremely thin — the /docs, /pricing, /api, and /README pages all render only a "Connect wallet" prompt with no further content. There is no OpenAPI spec, no request/response schema, and no example payloads available from the crawl. The output schema in the x402 challenge indicates the endpoint accepts HTTP POST and returns application/json, but the actual response structure is unknown.
Capabilities
Use cases
- —Fetching current or recent stock data for Regeneron (REGN) without needing an API key or subscription
- —Integrating stock lookups into an AI agent workflow that can settle payments via x402 on Base
- —Building a trading dashboard that pays per query in USDC rather than maintaining a subscription
Fit
Best for
- —Agents or bots that need on-demand stock data with crypto-native payment
- —Developers who want zero-signup, pay-as-you-go stock data access
- —Low-volume or sporadic stock data consumers who don't want monthly subscriptions
Not for
- —High-frequency trading requiring sub-millisecond latency and bulk data feeds
- —Users who need comprehensive historical stock data or full market coverage
- —Anyone without a Base-network USDC wallet or x402-compatible client
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/stocks/REGN \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>"Endpoint
Quality
The endpoint is live and returns a valid x402 challenge, confirming pricing and payment details. However, documentation is essentially absent — no OpenAPI spec, no request/response schemas, no examples, and the /docs page is empty. The specific /stocks/REGN route is not listed on the landing page. This is effectively a stub listing.
Warnings
- —No documentation available — /docs, /api, /pricing, and /README pages all render only 'Connect wallet' with no content.
- —The /api/v1/stocks/REGN endpoint is not listed among the advertised APIs on the landing page; its exact capabilities and response format are unknown.
- —No request or response schema is available; the actual data returned is unverified.
- —No OpenAPI specification found.
Citations
- —The x402 challenge returns maxAmountRequired of 20000 base units of USDC (asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) on Base networkhttps://lowpaymentfee.com/api/v1/stocks/REGN
- —The platform advertises uniform $0.02/request pricing with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —Payment is directed to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 with x402 version 1 and exact schemehttps://lowpaymentfee.com/api/v1/stocks/REGN
- —Documentation pages (/docs, /api, /pricing, /README) contain only a 'Connect wallet' prompthttps://lowpaymentfee.com/docs