OHLCV candlestick data for LINK via x402 micropayment — $0.02 per request on Base.
What it does
This endpoint provides OHLCV (Open, High, Low, Close, Volume) candlestick data for the Chainlink (LINK) cryptocurrency token. It is part of the lowpaymentfee.com platform, which offers a suite of pay-per-request APIs spanning data analytics, AI/ML inference, finance, crypto, and utility services. All endpoints use the x402 payment protocol, settling in USDC on the Base network.
The specific endpoint at `/api/v1/crypto/LINK/ohlcv` accepts POST requests and returns JSON. The x402 challenge advertises a maximum cost of 20,000 base units of USDC (0x8335…on Base), which equals $0.02 per request (USDC uses 6 decimals). The platform advertises no API keys, no rate limits, and instant access — you pay per call with an x402 payment header.
Documentation is extremely sparse. The landing page lists available endpoints and pricing, but the /docs, /pricing, and /README pages all returned only a "Connect wallet" prompt with no substantive content. There is no OpenAPI schema, no request/response examples, and no documentation on what parameters the OHLCV endpoint accepts (e.g., timeframe, date range) or what fields the response contains. The endpoint is live and returns a valid 402 challenge, but without documentation the exact request format must be discovered experimentally.
Capabilities
Use cases
- —Fetching LINK OHLCV candlestick data for trading analysis
- —Building automated trading bots that need per-request crypto market data without API key management
- —Integrating LINK price history into dashboards or analytics pipelines
Fit
Best for
- —Agents or bots needing on-demand LINK candlestick data without subscription commitments
- —Low-volume or sporadic crypto data queries where pay-per-call is cheaper than a subscription
- —x402-native workflows that settle payments in USDC on Base
Not for
- —High-frequency trading requiring sub-second latency and bulk historical data downloads
- —Users who need comprehensive multi-asset OHLCV data across hundreds of tokens in a single call
- —Anyone requiring detailed API documentation or guaranteed SLAs before integration
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/crypto/LINK/ohlcv \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_token>" \
-d '{}'Endpoint
Quality
The endpoint is live and returns a valid x402 402 challenge with clear pricing. However, there is no OpenAPI schema, no request/response examples, and no meaningful documentation — the docs, pricing, and README pages are all blank beyond a wallet connect prompt. The exact request parameters and response shape are unknown.
Warnings
- —No documentation available — /docs, /pricing, and /README pages all return only a 'Connect wallet' prompt with no content.
- —No OpenAPI or JSON schema provided; request parameters (timeframe, date range, etc.) are unknown.
- —No example responses available; the response structure must be discovered experimentally.
- —The platform lists many endpoint categories but it is unclear how mature or complete each one is.
Citations
- —The endpoint returns a 402 challenge with maxAmountRequired of 20000 base units of USDC on Base network.https://lowpaymentfee.com/api/v1/crypto/LINK/ohlcv
- —The platform advertises $0.02 per request, no API keys, no rate limits, and instant access on Base network.https://lowpaymentfee.com
- —USDC asset address on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913.https://lowpaymentfee.com/api/v1/crypto/LINK/ohlcv