Historical stock data for Coinbase (CB) via x402 micropayment on Base network, $0.02/request.
What it does
This endpoint provides historical stock data for the ticker CB (Coinbase Global) through the lowpaymentfee.com platform. It is part of a broader suite of pay-per-request APIs covering finance, analytics, AI/ML, and infrastructure utilities. The endpoint accepts POST requests and returns JSON.
Payment is handled via the x402 protocol on the Base network using USDC (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913). The maximum amount required per request is 20,000 base units of USDC, which equals $0.02 (USDC uses 6 decimals). There are no API keys, no rate limits, and no subscription commitments — each call is paid individually via the X-PAYMENT header.
Documentation is extremely sparse. The crawled docs, API, pricing, and README pages all returned only a "Connect wallet" prompt with no additional content. There is no OpenAPI schema, no request/response examples, and no description of the expected POST body or response format. The endpoint is confirmed live (returns a valid 402 challenge), but the actual data schema and query parameters must be inferred or discovered experimentally.
Capabilities
Use cases
- —Retrieving historical price data for Coinbase (CB) stock
- —Building financial dashboards that pull equity history on demand
- —Agent-driven stock analysis workflows that pay per query
- —Backtesting trading strategies with historical CB data
Fit
Best for
- —Agents or apps needing on-demand stock history without subscription overhead
- —Crypto-native workflows that can pay with USDC on Base
- —Low-volume or sporadic stock data lookups at $0.02 per call
Not for
- —High-frequency trading requiring sub-second latency and bulk data
- —Users who need comprehensive multi-ticker coverage from a single documented API
- —Anyone without a Base-network USDC wallet
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/stocks/CB/history \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>"Endpoint
Quality
The endpoint is confirmed live with a valid x402 402 challenge and clear pricing ($0.02 USDC on Base). However, there is no OpenAPI schema, no request/response examples, and all documentation pages are empty stubs. The actual input parameters and response format are unknown, making this effectively a stub listing.
Warnings
- —No documentation available — docs, API, pricing, and README pages all return only a wallet-connect prompt with no content.
- —No OpenAPI or input/output schema provided; request body format and response structure are unknown.
- —The specific data source and coverage period for CB stock history are unspecified.
- —Cannot verify data quality or freshness without sample responses.
Citations
- —The endpoint returns a 402 challenge with maxAmountRequired of 20000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/stocks/CB/history
- —USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/stocks/CB/history
- —Platform pricing is $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com