Historical stock price data for GM via x402 micropayment on Base, $0.02 per request.
What it does
This endpoint provides historical stock price data for General Motors (GM) through the lowpaymentfee.com platform. It is part of a broader suite of finance, analytics, AI, and utility APIs all accessible via the x402 payment protocol on the Base network. Each request costs $0.02 in USDC, paid per-call with no API keys, subscriptions, or rate limits required.
The specific endpoint `/api/v1/stocks/GM/history` accepts POST requests and returns JSON. The x402 challenge confirms the endpoint is live, settling payments in USDC (contract 0x8335…2913) on Base. The maximum amount required per call is 20,000 base units of USDC (6 decimals), which equals $0.02. The provider advertises a uniform $0.02/request pricing across all endpoints.
Documentation is extremely sparse — the docs, pricing, and API pages all render only a "Connect wallet" prompt with no further technical detail. There is no OpenAPI spec, no request/response schema documentation, and no example payloads available. The endpoint URL pattern suggests it returns historical price data for the GM stock ticker, but the exact request parameters and response format are unknown. Agents should expect a JSON response but will need to experiment or contact the provider for schema details.
Capabilities
Use cases
- —Retrieving historical price data for General Motors (GM) stock
- —Building financial dashboards that pull stock history on demand
- —Agent-driven portfolio analysis requiring per-call stock data access
- —Backtesting trading strategies with historical GM prices
Fit
Best for
- —AI agents needing pay-per-call stock history without API key management
- —Developers wanting low-friction access to GM historical prices via crypto micropayments
- —Applications on Base network that need inline financial data lookups
Not for
- —High-frequency trading requiring sub-second latency and bulk data (no documented bulk endpoints)
- —Users who need comprehensive multi-ticker coverage (this endpoint is ticker-specific to GM)
- —Teams requiring detailed API documentation and SLAs before integration
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/stocks/GM/history \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_token>"Endpoint
Quality
The endpoint is live and returns a valid x402 402 challenge with clear pricing. However, there is no OpenAPI spec, no request/response schema, no documentation beyond a landing page, and no examples. The actual data returned is entirely unknown, making this effectively a stub listing.
Warnings
- —No API documentation available — docs, pricing, and API pages all show only 'Connect wallet'
- —No OpenAPI or JSON schema for request or response bodies
- —The endpoint path suggests GM stock history but exact parameters and response format are unverified
- —The provider hosts many diverse endpoints (AI, finance, utilities) all at $0.02 — unclear if all are fully implemented
Citations
- —Endpoint returns x402 402 challenge with maxAmountRequired of 20000 base units USDC on Basehttps://lowpaymentfee.com/api/v1/stocks/GM/history
- —Provider advertises $0.02/request uniform pricing 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/GM/history