Get the current stock price for 3M (MMM) via a pay-per-call x402 endpoint on Base.
What it does
This endpoint returns the current stock price for 3M Company (ticker: MMM) as a JSON response, paid per request using the x402 protocol. It is part of a broader suite of APIs hosted at lowpaymentfee.com that span data analytics, AI/ML inference, finance, crypto, and utility services.
The endpoint accepts POST requests and charges $0.02 per call, settled in USDC on the Base network. Payment is handled entirely via the x402 protocol — no API keys, accounts, or rate limits are required. The caller includes an X-PAYMENT header with a signed payment proof, and the server returns the stock price data upon verification.
The provider's landing page lists dozens of endpoints all priced at $0.02 per request. Documentation pages beyond the landing page appear to be behind a wallet-connect gate, so detailed request/response schemas are not publicly available. The specific response format for this stock price endpoint is not documented in the crawled material, though the x402 challenge confirms it returns application/json.
Capabilities
Use cases
- —Fetching the current 3M (MMM) stock price for portfolio tracking or dashboards
- —Agents that need on-demand equity price data without managing API keys
- —Programmatic trading bots that require spot-check pricing for MMM
Fit
Best for
- —AI agents needing keyless, pay-per-call stock price data
- —Developers who want instant access to equity prices without signup
- —Crypto-native applications that can settle micropayments in USDC on Base
Not for
- —High-frequency trading requiring sub-millisecond latency and bulk historical data
- —Users who need stock prices for tickers other than MMM (this endpoint is MMM-specific)
- —Applications that cannot handle x402 payment flows or USDC on Base
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/stocks/MMM/price \
-H "X-PAYMENT: <x402-payment-header>" \
-H "Content-Type: application/json"Endpoint
Quality
The x402 challenge is live and confirms the endpoint accepts POST requests at $0.02 in USDC on Base. However, there is no OpenAPI schema, no documented request body format, no example response, and the docs pages are gated behind wallet-connect. The actual response structure must be inferred.
Warnings
- —No public documentation for request or response schema — docs pages require wallet connection
- —Response format for stock price data is undocumented; only mimeType application/json is confirmed
- —Provider hosts many endpoints at the same price point; unclear what data source backs the stock prices
- —Other endpoints on the same domain (AI, analytics, etc.) suggest a broad but potentially thin service layer
Citations
- —The endpoint returns HTTP 402 with an x402 challenge requiring $0.02 in USDC on Basehttps://lowpaymentfee.com/api/v1/stocks/MMM/price
- —The provider lists all APIs at $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/stocks/MMM/price