Pay-per-call stock data for VRTX via x402 on Base, settled in USDC at $0.02/request.
What it does
This endpoint provides stock data for Vertex Pharmaceuticals (VRTX) through the lowpaymentfee.com platform, an x402-enabled API marketplace. The endpoint accepts POST requests and returns JSON. Payment is handled via the x402 protocol on the Base network using USDC (contract 0x8335…2913), with a maximum cost of $0.02 per request (20,000 base units at 6 decimals). No API keys or rate limits are required — callers simply attach an X-PAYMENT header with a valid x402 payment proof.
The broader lowpaymentfee.com platform offers a range of pay-per-call APIs across categories including data analytics, AI/ML inference, finance/crypto market data, and utility services, all priced uniformly at $0.02 per request. The specific /api/v1/stocks/VRTX endpoint is not listed on the site's main catalog (which focuses on analytics, AI, finance, and utility endpoints), so its exact response schema and data source are unclear. It likely returns stock quote or market data for the VRTX ticker, but no documentation, example responses, or output schema details were found in the crawled material.
The endpoint is confirmed live — it returns a proper 402 challenge with x402 version 1 headers. Settlement occurs on the Base L2 network with a 300-second payment timeout. The platform advertises no minimums, no commitments, and instant access.
Capabilities
Use cases
- —Fetching real-time or recent stock data for Vertex Pharmaceuticals (VRTX) without API key registration
- —Integrating stock lookups into autonomous AI agents that can settle payments on Base
- —Building trading bots or dashboards that pay per request with USDC
Fit
Best for
- —Agents or apps needing on-demand stock data without subscription commitments
- —Developers who prefer crypto-native micropayment APIs over traditional API key auth
- —Low-volume or bursty stock data consumers who want pure pay-per-use pricing
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/VRTX \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-proof>"Endpoint
Quality
The endpoint is live and returns a valid x402 402 challenge, confirming pricing and network details. However, no documentation, output schema, example responses, or even a listing for this specific stocks endpoint exists in the crawled material. The response format and data content must be entirely inferred from the URL path. This is effectively a stub listing.
Warnings
- —The /api/v1/stocks/VRTX endpoint is not listed on the provider's main catalog page — it may be undocumented or experimental.
- —No output schema or example response is available; the actual data returned is unknown.
- —Documentation pages (/docs, /api, /pricing, /README) all returned only 'Connect wallet' with no substantive content.
- —Data source and freshness of stock information are unknown.
Citations
- —The endpoint returns a 402 challenge with x402 version 1, accepting USDC on Base with maxAmountRequired of 20000 base unitshttps://lowpaymentfee.com/api/v1/stocks/VRTX
- —USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Basehttps://lowpaymentfee.com/api/v1/stocks/VRTX
- —Platform pricing is $0.02 per request with no API keys, no rate limits, and no minimumshttps://lowpaymentfee.com
- —The stocks endpoint is not listed among the available APIs on the homepagehttps://lowpaymentfee.com