ETH OHLCV candlestick data via x402 micropayment on Base, $0.02 per request.
What it does
This endpoint provides ETH (Ethereum) OHLCV (Open, High, Low, Close, Volume) candlestick data, accessible through the x402 payment protocol. It is hosted on lowpaymentfee.com, a platform offering a variety of pay-per-call APIs spanning data analytics, AI/ML inference, finance, crypto, and utility services. Each request costs $0.02 in USDC on the Base network — no API keys, no rate limits, and no subscriptions required.
The endpoint accepts POST requests and returns JSON. Payment is handled inline via the x402 protocol: callers attach an X-PAYMENT header containing a signed USDC payment of up to 20,000 base units (i.e., $0.02, since USDC uses 6 decimals) to the payTo address on Base. The x402 challenge confirms the endpoint is live and discoverable, with a max timeout of 300 seconds per payment.
Documentation on the site is extremely sparse — the docs, API, pricing, and README pages all render only a "Connect wallet" prompt with no further content. No request/response schema, parameter documentation, or example payloads are provided. The endpoint name and path strongly suggest it returns OHLCV candle data for ETH, but the exact request parameters (e.g., timeframe, date range) and response structure are unknown and must be discovered by calling the endpoint.
Capabilities
Use cases
- —Fetching historical ETH price candles for trading bots or backtesting
- —Displaying ETH OHLCV charts in a dashboard or portfolio tracker
- —Feeding ETH price data into quantitative analysis or ML models
- —Agent-driven crypto market monitoring with per-call micropayments
Fit
Best for
- —Developers needing quick, keyless access to ETH candlestick data
- —AI agents that can pay per request via x402 on Base
- —Low-volume or sporadic consumers who don't want subscriptions
Not for
- —High-frequency trading requiring sub-second latency and bulk data
- —Users who need comprehensive multi-asset OHLCV across hundreds of tokens from a single documented API
- —Anyone without a Base-compatible USDC wallet
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/crypto/ETH/ohlcv \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-signed-payment-header>" \
-d '{}'Endpoint
Quality
The x402 challenge is live and confirms pricing and payment details, but there is zero documentation on request parameters, response schema, or usage examples. The docs/pricing/README pages are all blank beyond a wallet-connect prompt, making this effectively a stub listing.
Warnings
- —No request parameter documentation available — callers must guess or reverse-engineer the expected POST body.
- —No response schema or example response provided anywhere in the crawled material.
- —All documentation pages (docs, API, pricing, README) render only 'Connect wallet' with no usable content.
- —Endpoint behavior and data coverage (timeframes, history depth) are entirely unknown.
Citations
- —Endpoint returns 402 with x402 challenge advertising $0.02 USDC on Basehttps://lowpaymentfee.com/api/v1/crypto/ETH/ohlcv
- —Platform advertises $0.02/request, no API keys, no rate limits, Base networkhttps://lowpaymentfee.com
- —USDC asset contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Basehttps://lowpaymentfee.com/api/v1/crypto/ETH/ohlcv
- —Docs, API, pricing, and README pages show only 'Connect wallet'https://lowpaymentfee.com/docs