OHLCV candlestick data for GMX token, paid per-request via x402 on Base.
What it does
This endpoint provides OHLCV (Open, High, Low, Close, Volume) candlestick data for the GMX token. It is part of the lowpaymentfee.com platform, which offers a suite of data, analytics, AI, finance, and utility APIs all gated behind the x402 payment protocol on the Base network.
The endpoint accepts POST requests and returns JSON. Payment is settled in USDC on Base (contract 0x8335…2913) using the x402 "exact" scheme. The maximum amount required per request is 20,000 base units of USDC, which at 6 decimals equals $0.02 USD. No API keys, rate limits, or subscriptions are needed — each call is independently paid.
Documentation beyond the landing page is sparse. The /docs, /pricing, /api, and /README pages all resolve to a minimal "Connect wallet" prompt with no additional technical detail. There is no OpenAPI spec, no request/response schema documentation, and no example payloads available. The specific request parameters (e.g., time range, interval, pagination) and response structure must be inferred or discovered experimentally. The endpoint is confirmed live via a valid 402 challenge.
Capabilities
Use cases
- —Fetching historical OHLCV candlestick data for GMX to build trading charts
- —Backtesting trading strategies using GMX price and volume history
- —Integrating GMX market data into dashboards or analytics pipelines
- —Agent-driven portfolio monitoring that needs GMX price snapshots
Fit
Best for
- —Developers needing pay-per-call GMX market data without API key management
- —AI agents that can settle x402 payments autonomously on Base
- —Low-volume or sporadic access to GMX OHLCV data where subscriptions are overkill
Not for
- —High-frequency trading requiring sub-second latency and bulk historical downloads
- —Users who need OHLCV data for tokens other than GMX from this specific endpoint
- —Anyone without a Base-compatible USDC wallet or x402 client
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/crypto/GMX/ohlcv \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-header>" \
-d '{"interval": "1d", "limit": 30}'Example
Request
{
"limit": 30,
"interval": "1d"
}Endpoint
Quality
The endpoint is confirmed live via a valid x402 402 challenge with clear pricing ($0.02 USDC on Base). However, there is no OpenAPI spec, no documented request/response schema, no examples, and all documentation pages return only a 'Connect wallet' stub. The request and response formats are entirely unknown and must be guessed.
Warnings
- —No API documentation available — /docs, /pricing, /api, and /README all show only 'Connect wallet'
- —No OpenAPI or JSON schema for request or response bodies
- —Example request JSON is inferred/guessed; actual required parameters are unknown
- —Response format is completely undocumented
Citations
- —The endpoint returns a 402 challenge with maxAmountRequired of 20000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/crypto/GMX/ohlcv
- —USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/crypto/GMX/ohlcv
- —All APIs on the platform are priced at $0.02 per request with no API keys, no rate limits, and instant accesshttps://lowpaymentfee.com
- —The platform offers Data & Analytics, AI & ML, Finance & Web3, and Infrastructure API categorieshttps://lowpaymentfee.com