Historical stock data for MMM (3M) via x402 micropayment on Base, $0.02/request.
What it does
This endpoint provides historical stock price data for the ticker MMM (3M Company) through the x402 payment protocol. It is part of a broader API platform at lowpaymentfee.com that offers data & analytics, AI/ML inference, finance, crypto, and utility endpoints — all gated behind x402 micropayments settled in USDC on the Base network.
The endpoint accepts POST requests and returns JSON. Each call costs a maximum of $0.02 (20,000 base units of USDC with 6 decimals) paid via the x402 X-PAYMENT header. There are no API keys, no rate limits, and no subscription commitments — you pay per request. The x402 challenge was successfully captured, confirming the endpoint is live.
Documentation beyond the landing page is extremely thin: the /docs, /pricing, /api, and /README pages all returned only a "Connect wallet" prompt with no additional technical detail. There is no OpenAPI spec, no request/response schema, and no example payloads available from the crawl. The exact request body format and the shape of the historical stock data response are unknown and must be discovered by experimentation.
Capabilities
Use cases
- —Retrieving historical price data for 3M (MMM) for backtesting or analysis
- —Building automated trading or portfolio monitoring agents that pay per query
- —Integrating stock history lookups into AI agent workflows without API key management
Fit
Best for
- —Agents needing on-demand stock history without subscription overhead
- —x402-native workflows on the Base network
- —Low-volume or sporadic historical stock data queries
Not for
- —High-frequency trading requiring sub-second latency and bulk data
- —Users who need comprehensive multi-ticker coverage (only MMM path confirmed)
- —Anyone requiring detailed API documentation before integration
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/stocks/MMM/history \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_token>" \
-d '{}'Endpoint
Quality
The endpoint is confirmed live via a valid 402 challenge with clear pricing (USDC on Base, $0.02/request). However, there is no OpenAPI spec, no request/response schema, no documentation, and no examples. The docs pages are all empty wallet-connect stubs. This is effectively a stub listing.
Warnings
- —No OpenAPI or request/response schema available — request body format and response shape are unknown
- —All documentation pages (/docs, /pricing, /api, /README) returned only 'Connect wallet' with no content
- —Only the /stocks/MMM/history path was probed; availability of other tickers is unconfirmed
- —The broader platform lists many endpoint categories but none were individually verified beyond this one
Citations
- —Endpoint returns 402 with x402 challenge advertising USDC on Base, maxAmountRequired 20000 (=$0.02)https://lowpaymentfee.com/api/v1/stocks/MMM/history
- —Platform advertises $0.02/request pricing with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —USDC asset contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Basehttps://lowpaymentfee.com/api/v1/stocks/MMM/history