Get the current stock price for MMC (Marsh & McLennan) via a pay-per-call x402 endpoint on Base.
What it does
This x402 endpoint returns the current stock price for MMC (Marsh & McLennan Companies) in JSON format. It is part of a broader suite of APIs hosted at lowpaymentfee.com that cover data analytics, AI/ML inference, finance, crypto, and utility services — all payable per request with no API keys, no rate limits, and no subscriptions.
The endpoint accepts POST requests and is secured via the x402 payment protocol on the Base network. Each call costs $0.02 in USDC (USD Coin), settled on-chain to the provider's wallet. The x402 challenge confirms the endpoint is live and returns a 402 Payment Required response until a valid X-PAYMENT header is supplied.
The provider's landing page lists a uniform $0.02-per-request pricing model across all endpoints. Documentation pages beyond the landing page were largely empty (showing only a "Connect wallet" prompt), so details about request/response schemas, supported parameters, and error handling are not available from the crawl. The specific endpoint path `/api/v1/stocks/MMC/price` is not listed on the homepage but follows the same x402 pattern and pricing as the advertised endpoints.
Capabilities
Use cases
- —Fetching the latest MMC stock price for portfolio dashboards
- —Automated trading agents that need on-demand equity quotes
- —Financial research tools requiring pay-as-you-go stock data
Fit
Best for
- —Agents or apps needing single-ticker stock price lookups without API key management
- —Developers who want crypto-native pay-per-call pricing on Base
- —Low-volume or sporadic stock price queries where subscriptions are overkill
Not for
- —High-frequency trading requiring sub-millisecond latency and bulk ticker feeds
- —Users who need historical OHLCV data or full market depth
- —Anyone without a Base-compatible USDC wallet for payment
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/stocks/MMC/price \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_token>"Endpoint
Quality
The endpoint is live (402 challenge captured) with clear pricing ($0.02 USDC on Base), but there is no OpenAPI schema, no documented request/response format, and the docs pages are empty. The specific /stocks/MMC/price path is not even listed on the provider's homepage, making it hard to verify its exact behavior.
Warnings
- —No API documentation available — docs, pricing, and README pages all render only a 'Connect wallet' prompt with no content.
- —The /api/v1/stocks/MMC/price endpoint is not listed among the provider's advertised APIs on the homepage.
- —No request or response schema is documented; actual output format is unknown.
- —Unknown data source for stock prices — accuracy and freshness cannot be verified.
Citations
- —The endpoint returns a 402 challenge with maxAmountRequired of 20000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/stocks/MMC/price
- —USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/stocks/MMC/price
- —All APIs are priced at $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com