OHLCV candlestick data for Stellar (XLM) via pay-per-request x402 on Base.
What it does
This endpoint provides OHLCV (Open, High, Low, Close, Volume) candlestick data for the Stellar Lumens (XLM) cryptocurrency. It is part of the lowpaymentfee.com platform, which offers a suite of data, AI, finance, and utility APIs all gated behind the x402 payment protocol on the Base network. Each request costs $0.02 in USDC, with no API keys, rate limits, or subscriptions required — callers simply attach an x402 payment header to each POST request.
The endpoint is live and returns a standard x402 challenge (HTTP 402) when called without payment. Payment is settled on-chain via USDC on Base (contract 0x8335…2913) to the provider's address. The x402 challenge specifies a maxAmountRequired of 20000 base units, which equals $0.02 given USDC's 6 decimals. The maximum payment timeout is 300 seconds.
Documentation beyond the landing page is sparse — the /docs, /pricing, /api, and /README pages all render only a "Connect wallet" prompt with no additional technical detail. No OpenAPI schema, request/response examples, or parameter documentation were found. The exact request body format (e.g., time range, interval, exchange) and response structure must be inferred or discovered experimentally.
Capabilities
Use cases
- —Fetching historical XLM price candles for charting or technical analysis
- —Backtesting trading strategies against Stellar Lumens price data
- —Building dashboards that display XLM open/high/low/close/volume
- —Autonomous agents that need on-demand crypto market data without API key management
Fit
Best for
- —Agents or apps that need keyless, pay-per-call access to XLM OHLCV data
- —Developers who prefer on-chain micropayments over subscription billing
- —Low-volume or sporadic consumers of crypto candlestick data
Not for
- —High-frequency trading requiring sub-second latency and bulk historical downloads
- —Users who need free or subscription-based access without crypto wallets
- —Consumers needing OHLCV data for assets other than XLM (separate endpoints exist)
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/crypto/XLM/ohlcv \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_token>" \
-d '{}'Endpoint
Quality
The endpoint is live and returns a valid x402 challenge with clear pricing, but there is no documentation, no OpenAPI schema, no request/response examples, and no parameter descriptions. The specific input format and output structure are entirely unknown.
Warnings
- —No API documentation found — /docs, /pricing, /api, and /README all render only a wallet-connect prompt with no technical content.
- —No OpenAPI or JSON schema available for request parameters or response format.
- —Request body structure (time range, interval, exchange, etc.) is undocumented and must be discovered experimentally.
- —Response format is unknown — no example responses are available.
Citations
- —The endpoint returns HTTP 402 with an x402 challenge requiring USDC payment on Base network.https://lowpaymentfee.com/api/v1/crypto/XLM/ohlcv
- —maxAmountRequired is 20000 base units of USDC (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913), equaling $0.02.https://lowpaymentfee.com/api/v1/crypto/XLM/ohlcv
- —The platform advertises $0.02 per request with no API keys, no rate limits, and instant access on Base network.https://lowpaymentfee.com