Historical stock data for MCO via x402 micropayment on Base, $0.02 per request.
What it does
This endpoint provides historical stock data for the ticker MCO, served through the x402 payment protocol on the Base network. It is part of a broader API platform at lowpaymentfee.com that offers data & analytics, AI/ML inference, finance, crypto, and utility endpoints—all priced at $0.02 per request with no API keys, no rate limits, and no commitments required.
The specific endpoint `/api/v1/stocks/MCO/history` accepts POST requests and returns JSON. Payment is settled in USDC (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) on the Base L2 network. The x402 challenge advertises a maxAmountRequired of 20,000 base units, which at 6 decimals for USDC equals $0.02. The endpoint was confirmed live, returning a proper 402 challenge.
Documentation beyond the landing page is extremely sparse—the /docs, /api, /pricing, and /README pages all render only a "Connect wallet" prompt with no further content. There is no OpenAPI schema, no request/response examples, and no detailed documentation for the stocks history endpoint. The exact request body format and response structure are unknown and must be inferred or discovered by the caller.
Capabilities
Use cases
- —Retrieving historical price data for MCO stock
- —Building financial dashboards that pull stock history on demand
- —Agent-driven portfolio analysis requiring per-call payment without API key management
Fit
Best for
- —Agents or apps needing on-demand stock history without subscription commitments
- —Developers who want to pay per request in USDC on Base
- —Low-volume or sporadic access to MCO historical data
Not for
- —High-frequency trading requiring sub-second latency and bulk data
- —Users who need comprehensive multi-ticker historical data in a single call
- —Anyone without a Base-compatible USDC wallet
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/stocks/MCO/history \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_token>" \
-d '{"ticker": "MCO"}'Example
Request
{
"ticker": "MCO"
}Endpoint
Quality
The endpoint is live and returns a valid x402 402 challenge with clear pricing ($0.02 USDC on Base). However, there is no OpenAPI schema, no documented request/response format, no examples, and the docs pages are empty. The request body and response structure are entirely unknown, making this effectively a stub listing.
Warnings
- —No documentation available—/docs, /api, /pricing, and /README pages all show only 'Connect wallet' with no content.
- —Request body schema and response format are completely undocumented; the example_request_json is speculative.
- —The ticker 'MCO' is not a widely recognized stock symbol; the nature of the data returned is unclear.
- —No OpenAPI or machine-readable schema provided.
Citations
- —The endpoint returns a 402 x402 challenge with maxAmountRequired of 20000 base units in USDC on Basehttps://lowpaymentfee.com/api/v1/stocks/MCO/history
- —All endpoints on the platform are priced at $0.02 per request with no API keys, no rate limits, and instant accesshttps://lowpaymentfee.com
- —USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base networkhttps://lowpaymentfee.com/api/v1/stocks/MCO/history