Pay-per-call stock quote for FDX (FedEx) via x402 on Base, settled in USDC.
What it does
This endpoint at lowpaymentfee.com provides stock data for FDX (FedEx Corporation) behind an x402 paywall. It is part of a broader platform offering data & analytics, AI/ML inference, finance, crypto, and utility APIs — all priced at $0.02 per request with no API keys, no rate limits, and no commitments. Payment is settled on the Base network using USDC (contract 0x8335…2913).
The specific endpoint `/api/v1/stocks/FDX` accepts HTTP POST requests and returns JSON. The x402 challenge confirms the endpoint is live, advertising a max amount of 20,000 base units of USDC (6 decimals), which equals $0.02 per call. The platform advertises itself as keyless and instant-access: callers attach an `X-PAYMENT` header containing a valid x402 payment proof and receive the response directly.
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 schema, no example request/response payloads, and no description of what fields the stock data response contains. The endpoint is confirmed live via the 402 challenge, but the actual response shape must be discovered by making a paid call.
Capabilities
Use cases
- —Fetching current FedEx (FDX) stock data without managing API keys or subscriptions
- —Integrating low-cost stock lookups into autonomous agent workflows that settle payments on Base
- —Building trading dashboards or alerts that pay per request in USDC
Fit
Best for
- —Agents or bots that need on-demand stock data with crypto-native payment
- —Developers who want keyless, pay-as-you-go access to equity data
- —x402-compatible wallets and agent frameworks on Base
Not for
- —High-frequency trading requiring sub-millisecond latency and bulk data
- —Users who need comprehensive historical stock data or full market coverage
- —Anyone without a Base-compatible USDC wallet
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/stocks/FDX \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-proof>"Endpoint
Quality
The endpoint is confirmed live via a valid 402 challenge and pricing is clear ($0.02/call in USDC on Base). However, there is no OpenAPI schema, no documented request/response format, and all documentation pages are empty beyond a wallet-connect prompt. The actual data returned is unknown.
Warnings
- —No documentation available — docs, pricing, API, and README pages all show only 'Connect wallet' with no content.
- —No OpenAPI or output schema provided; response format for stock data is entirely unknown.
- —The specific endpoint is /api/v1/stocks/FDX but the landing page does not list any /stocks/ endpoints, only finance/prices and finance/rates — this endpoint may be undocumented or experimental.
- —No example responses available; callers must discover the schema by making a paid request.
Citations
- —The endpoint returns a 402 challenge with maxAmountRequired of 20000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/stocks/FDX
- —All APIs are priced at $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Basehttps://lowpaymentfee.com/api/v1/stocks/FDX