Stock quote data for ticker V via x402 micropayment on Base, $0.02 per request.
What it does
This endpoint at lowpaymentfee.com provides stock data for the ticker symbol "V" (Visa Inc.) through the x402 payment protocol. It is part of a broader suite of pay-per-call APIs offered by the same provider, spanning finance, AI/ML, data analytics, and utility categories. The specific endpoint `/api/v1/stocks/V` sits under the finance vertical and returns JSON data when called via HTTP POST with a valid x402 payment header.
Payment is settled on the Base network using USDC (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913). The maximum amount required per call is 20,000 base units, which at 6 decimals equals $0.02 USD. There are no API keys, no rate limits, and no subscription commitments — each request is paid individually. The x402 challenge was successfully captured with version 1, confirming the endpoint is live.
Documentation is extremely sparse. The crawled docs, pricing, and API pages all returned only a "Connect wallet" prompt with no further technical detail. There is no OpenAPI schema, no example request/response payloads, and no description of what fields the stock data response contains. The endpoint path suggests it returns data for a single stock ticker (V), but the exact response structure is unknown.
Capabilities
Use cases
- —Fetching current or recent stock data for Visa (ticker V) in an automated trading or analytics pipeline
- —Agent-driven portfolio monitoring that pays per query with no subscription
- —Integrating real-time equity data into a Web3 application using on-chain micropayments
Fit
Best for
- —Developers who want pay-per-call stock data without API key management
- —AI agents with Base USDC wallets needing on-demand equity quotes
- —Low-volume or sporadic stock data lookups where subscriptions are wasteful
Not for
- —High-frequency trading requiring sub-millisecond latency and bulk ticker coverage
- —Users who need historical OHLCV candle data or full market depth (no evidence this is provided)
- —Anyone without a Base-compatible USDC wallet
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/stocks/V \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_token>"Endpoint
Quality
The endpoint is confirmed live via a valid 402 challenge with clear pricing ($0.02 USDC on Base). However, there is no OpenAPI schema, no documented request/response format, no examples, and the crawled documentation pages are empty stubs. The actual data returned is entirely unknown.
Warnings
- —No OpenAPI or schema documentation available — response format is unknown
- —All documentation pages (docs, pricing, API, README) returned only a 'Connect wallet' stub with no technical content
- —It is unclear whether this endpoint returns real-time quotes, delayed data, or something else entirely
- —Single-ticker endpoint — unclear if other stock tickers are available at similar paths
Citations
- —The endpoint returns HTTP 402 with an x402 v1 challenge requiring USDC payment on Basehttps://lowpaymentfee.com/api/v1/stocks/V
- —Maximum amount required is 20000 base units of USDC (6 decimals) = $0.02 per requesthttps://lowpaymentfee.com/api/v1/stocks/V
- —USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base networkhttps://lowpaymentfee.com/api/v1/stocks/V
- —Provider advertises $0.02/request pricing with no API keys, no rate limits, and instant accesshttps://lowpaymentfee.com