Pay-per-call XRP token data via x402 on Base, settled in USDC at $0.02/request.
What it does
This endpoint at lowpaymentfee.com provides XRP token data accessible via the x402 payment protocol. Each call costs $0.02 (20,000 base units of USDC on the Base network, where USDC uses 6 decimals). No API keys or accounts are required — callers simply attach an X-PAYMENT header with a valid x402 payment proof to receive a JSON response.
The endpoint is part of a broader platform offering dozens of pay-per-call APIs spanning data analytics, AI/ML inference, finance/Web3 market data, and utility services, all priced uniformly at $0.02 per request. The specific `/api/v1/tokens/XRP` path suggests it returns token-level data for XRP, likely including price or market information, though the exact response schema is not documented.
The x402 challenge is live and confirms payment is accepted in USDC (contract 0x8335…2913) on Base mainnet, with a 300-second payment timeout. There is no OpenAPI spec, no detailed documentation, and the docs/pricing/API pages all render only a "Connect wallet" prompt, so the precise request parameters and response format remain unknown.
Capabilities
Use cases
- —Fetching current XRP token data (likely price/market info) without needing an API key
- —Integrating XRP data into autonomous agents that can settle payments on Base via x402
- —Building dashboards or bots that pay per request for crypto market data
Fit
Best for
- —Agents or apps that can settle USDC payments on Base network
- —Low-volume or sporadic XRP data lookups where per-call pricing is preferable to subscriptions
- —Developers wanting keyless, permissionless access to token data
Not for
- —High-frequency trading requiring sub-second latency and bulk data (no documented rate limits but per-call payment adds overhead)
- —Users who need detailed historical XRP data or advanced analytics (response schema is undocumented)
- —Anyone unable to transact in USDC on Base network
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/tokens/XRP \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-proof>"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, and all documentation pages render only a wallet-connect prompt. The actual data returned is inferred solely from the URL path.
Warnings
- —No OpenAPI or schema documentation available — request parameters and response format are unknown
- —All doc/pricing/API pages return only a 'Connect wallet' prompt with no substantive content
- —The exact data returned for /api/v1/tokens/XRP is inferred from the URL path; it could be price data, metadata, or something else
- —Platform appears to be a generic template with many endpoints; quality and reliability of underlying data sources is unverified
Citations
- —The x402 challenge returns maxAmountRequired of 20000 in USDC (asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) on Base network with a 300-second timeouthttps://lowpaymentfee.com/api/v1/tokens/XRP
- —All APIs on the platform are priced at $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —The platform offers APIs across Data & Analytics, AI & Machine Learning, Finance & Web3, and Infrastructure categorieshttps://lowpaymentfee.com