Pay-per-call token data for GMX via x402 on Base, settled in USDC at $0.02/request.
What it does
This endpoint at lowpaymentfee.com provides on-demand token data for GMX (the decentralized exchange governance token) through the x402 payment protocol. Each request costs $0.02, paid in USDC on the Base network — no API keys, no rate limits, and no subscriptions required. The x402 challenge is live and returns a 402 with an exact-payment scheme requiring 20,000 base units of USDC (0.02 USD, since USDC uses 6 decimals) to the specified payTo address.
The provider hosts a broad catalog of pay-per-call endpoints spanning data analytics, AI/ML inference, finance/Web3 market data, and utility services — all at the same $0.02 per request price point. The specific endpoint `/api/v1/tokens/GMX` sits in the crypto/finance category and likely returns price or market data for the GMX token, though the exact response schema is not documented. The endpoint accepts HTTP POST requests and returns application/json.
Documentation is extremely sparse: the docs, pricing, and API pages all render only a "Connect wallet" prompt with no further technical detail. There is no OpenAPI spec, no example request/response payloads, and no description of the response fields. The x402 challenge itself is well-formed and the site's landing page confirms the pricing model, but consumers should be prepared to discover the response format empirically.
Capabilities
Use cases
- —Fetching current GMX token data (price, market info) in an automated trading or analytics pipeline
- —Agents that need on-demand crypto token information without managing API keys or subscriptions
- —Building dashboards or alerts that pull GMX data with micropayment-based access
Fit
Best for
- —AI agents or bots that need frictionless, keyless access to GMX token data
- —Developers prototyping crypto data integrations without committing to a subscription
- —Low-volume or sporadic consumers who prefer pay-per-call over monthly plans
Not for
- —High-frequency trading requiring sub-second latency guarantees (no SLA documented)
- —Users who need comprehensive historical OHLCV data or advanced charting — response schema is unknown
- —Anyone needing detailed API documentation or guaranteed uptime commitments
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/tokens/GMX \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>"Endpoint
Quality
The x402 challenge is live and pricing is clear ($0.02 USDC on Base), but there is no OpenAPI spec, no documented request/response schema, no example payloads, and the docs pages are empty beyond a wallet-connect prompt. The endpoint's actual output must be discovered empirically.
Warnings
- —No OpenAPI or schema documentation available — response format is unknown
- —Docs, pricing, and API pages all render only 'Connect wallet' with no technical content
- —No SLA, rate-limit, or uptime guarantees documented
- —The exact data returned for the GMX token endpoint is not specified anywhere
Citations
- —The x402 challenge requires 20,000 base units of USDC (asset 0x8335…) on Base, equaling $0.02 per requesthttps://lowpaymentfee.com/api/v1/tokens/GMX
- —All endpoints are priced at $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —The provider offers endpoints across data/analytics, AI/ML, finance/Web3, and infrastructure categorieshttps://lowpaymentfee.com