Pay-per-call token data endpoint for SAND via x402 on Base network, $0.02/request in USDC.
What it does
This endpoint provides on-demand data for the SAND token (The Sandbox) through an x402-gated API at lowpaymentfee.com. It is part of a broader suite of Finance & Web3 endpoints offered by the same provider, which includes price feeds, exchange rates, token quotes, and gas estimates.
The endpoint accepts POST requests and returns JSON. Payment is handled via the x402 protocol on the Base network using USDC (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913). The maximum amount required per call is 20,000 base units of USDC, which equals $0.02 (USDC uses 6 decimals). There are no API keys, no rate limits, and no subscription commitments — each request is paid individually at the time of the call.
The provider's site lists many endpoints across categories (data/analytics, AI/ML, finance/web3, infrastructure), all priced uniformly at $0.02 per request. Documentation beyond the landing page is sparse — the /docs, /api, /pricing, and /README pages all appear to require a wallet connection and provide no additional technical detail. The exact response schema for the SAND token endpoint is not documented, so the structure of the returned data must be inferred or discovered by making a paid call.
Capabilities
Use cases
- —Fetching current SAND token data (price, metadata) for portfolio dashboards
- —Integrating SAND token information into trading bots or DeFi applications
- —Agent-driven lookups of SAND token metrics without managing API keys
Fit
Best for
- —Developers needing keyless, pay-per-call access to SAND token data
- —AI agents that can settle x402 payments on Base
- —Projects wanting low-friction crypto data without subscriptions
Not for
- —High-frequency trading requiring sub-second latency guarantees (no SLA documented)
- —Users who need detailed historical SAND data or OHLCV candles (not documented)
- —Anyone unable to pay with USDC on Base network
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/tokens/SAND \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_header>"Endpoint
Quality
The endpoint is live (402 challenge confirmed) with clear pricing ($0.02 USDC on Base), but there is no documented request/response schema, no examples, and the docs pages are empty beyond a wallet-connect prompt. The exact data returned is unknown.
Warnings
- —No response schema or example documented — actual output structure is unknown
- —Documentation pages (/docs, /pricing, /README) are effectively empty
- —Provider identity and reliability are unclear — no terms of service or SLA visible
Citations
- —Endpoint returns 402 with x402 challenge requiring 20000 base units of USDC on Basehttps://lowpaymentfee.com/api/v1/tokens/SAND
- —All endpoints priced at $0.02/request with no API keys, no rate limitshttps://lowpaymentfee.com
- —USDC asset contract on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/tokens/SAND