Pay-per-call stock/market quote for DHR via x402 on Base, settled in USDC.
What it does
This endpoint at lowpaymentfee.com provides a market quote for the ticker symbol DHR (Danaher Corporation) via a simple POST request. It is part of a broader suite of pay-per-call APIs offered by lowpaymentfee.com spanning data analytics, AI/ML inference, finance, crypto, and utility services. All endpoints on the platform use the x402 payment protocol, settling in USDC on the Base network.
The specific endpoint `/api/v1/market/quote/DHR` costs $0.02 per request (20,000 base units of USDC with 6 decimals). No API keys or accounts are required — payment is handled inline via the x402 `X-PAYMENT` header. The platform advertises no rate limits and instant access. The probe confirms the endpoint is live, returning a proper 402 challenge with x402 version 1.
Documentation on the site is extremely sparse. The docs, API, pricing, and README pages all render only a "Connect wallet" prompt with no additional technical detail. There is no OpenAPI schema, no example request/response payloads, and no description of what fields the quote response contains. The endpoint is discoverable and accepts HTTP POST, but the exact request body format and response structure are unknown.
Capabilities
Use cases
- —Fetching a real-time or near-real-time market quote for Danaher Corporation (DHR)
- —Integrating stock price lookups into an AI agent workflow without managing API keys
- —Building trading or portfolio dashboards that pay per data request via crypto micropayments
Fit
Best for
- —Agents or apps needing on-demand stock quotes without subscription commitments
- —Developers experimenting with x402 pay-per-call APIs on Base
- —Low-volume market data consumers who prefer micropayment access over monthly plans
Not for
- —High-frequency trading requiring sub-millisecond latency and bulk data feeds
- —Users who need comprehensive historical market data or OHLCV candles
- —Anyone without a Base-network USDC wallet or x402-compatible client
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/market/quote/DHR \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>"Endpoint
Quality
The endpoint is live and returns a valid x402 402 challenge, confirming it exists and accepts payment. However, there is no documentation, no OpenAPI schema, no example requests or responses, and no description of what the quote response actually contains. The listing is effectively a stub with only the payment parameters known.
Warnings
- —No documentation available — docs, API, pricing, and README pages all show only 'Connect wallet' with no content.
- —No OpenAPI or schema describing request body or response format for this endpoint.
- —Unknown response structure — it is unclear what fields (price, volume, timestamp, etc.) are returned.
- —The ticker DHR is inferred to be Danaher Corporation but this is not confirmed by the provider.
- —The broader platform lists many endpoint categories but it is unclear how many are actually functional.
Citations
- —The endpoint returns a 402 challenge with x402 version 1, accepting USDC on Base network with maxAmountRequired of 20000 base units.https://lowpaymentfee.com/api/v1/market/quote/DHR
- —The platform advertises $0.02 per request pricing with no API keys, no rate limits, and instant access.https://lowpaymentfee.com
- —USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base network.https://lowpaymentfee.com/api/v1/market/quote/DHR
- —Docs, API, pricing, and README pages render only 'Connect wallet' with no additional content.https://lowpaymentfee.com/docs