Pay-per-call stock quote API for IBM via x402 on Base, settled in USDC at $0.02/request.
What it does
This endpoint at lowpaymentfee.com provides stock data for IBM through a pay-per-request x402 protocol. The endpoint accepts POST requests and returns JSON. Payment is settled on the Base network using USDC (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) at a maximum cost of $0.02 per call (20,000 base units with 6 decimals). No API keys or rate limits are required — callers simply attach an x402 payment header to each request.
The provider, lowpaymentfee.com, hosts a broader suite of endpoints spanning data analytics, AI/ML inference, finance/crypto market data, and utility services, all priced uniformly at $0.02 per request. The specific endpoint probed here (`/api/v1/stocks/IBM`) is not listed on the landing page's catalog but follows the same pricing and payment pattern. It is live and returning a valid 402 challenge.
Documentation is extremely sparse. 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 usage examples available from the crawl. The actual response format for stock data is unknown — it could be a quote, historical data, or something else entirely. Callers should be prepared to experiment or contact the provider for details.
Capabilities
Use cases
- —Fetching IBM stock information on-demand without subscription or API key
- —Agent-driven portfolio monitoring that pays per data request
- —Integrating real-time stock data into crypto-native applications on Base
Fit
Best for
- —Agents or apps needing occasional stock lookups without signup
- —Crypto-native workflows that can settle payments in USDC on Base
- —Low-volume, pay-as-you-go stock data consumption
Not for
- —High-frequency trading requiring sub-millisecond latency and guaranteed SLAs
- —Users who need comprehensive documentation or OpenAPI specs before integrating
- —Bulk historical stock data downloads
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/stocks/IBM \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_token>"Endpoint
Quality
The endpoint is live and returns a valid 402 challenge with clear pricing. However, there is no OpenAPI spec, no request/response schema, no documentation beyond a wallet-connect prompt, and the /stocks/IBM path isn't even listed in the provider's own catalog. The actual data returned is completely unknown.
Warnings
- —No OpenAPI or schema available — request body and response format are entirely unknown
- —The /api/v1/stocks/IBM endpoint is not listed on the provider's landing page catalog
- —All documentation pages (docs, pricing, API, README) render only 'Connect wallet' with no content
- —No examples or sample responses available from any source
Citations
- —Endpoint returns 402 with x402 challenge advertising USDC on Base at maxAmountRequired 20000https://lowpaymentfee.com/api/v1/stocks/IBM
- —Provider advertises $0.02/request pricing with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/stocks/IBM