Pay-per-call ICP token data via x402 on Base, settled in USDC at $0.02/request.
What it does
This endpoint at lowpaymentfee.com provides token data for ICP (Internet Computer Protocol) via a simple POST request, gated by the x402 payment protocol. Each call costs $0.02, paid in USDC on the Base network. No API keys, accounts, or rate limits are required — callers simply attach an x402 payment header to access the resource.
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/ICP` path falls under the Finance & Web3 category and likely returns token-level data (price, metadata, or market information) for the ICP token, though the exact response schema is not documented.
Payment is settled on-chain via the x402 "exact" scheme to a specified wallet address, using USDC (contract 0x8335…2913 on Base). The maximum payment timeout is 300 seconds. No OpenAPI spec, detailed documentation, or example responses were found in the crawl — the docs, pricing, and API pages all rendered only a wallet-connect prompt with no additional content.
Capabilities
Use cases
- —Fetching current ICP token data (price, metadata) without needing an API key
- —Integrating ICP market information into trading bots or dashboards
- —Agent-driven on-demand crypto token lookups with micropayments
Fit
Best for
- —Developers needing quick, keyless access to ICP token data
- —AI agents that can settle x402 payments on Base
- —Low-volume or sporadic token data lookups where $0.02/call is acceptable
Not for
- —High-frequency trading requiring sub-second latency and bulk pricing
- —Users who need comprehensive historical ICP data or OHLCV candles (no evidence of such features)
- —Anyone unable to settle USDC payments on the Base network
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/tokens/ICP \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-header>"Endpoint
Quality
The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02 in USDC on Base). However, there is no OpenAPI spec, no documented request/response schema, no example payloads, and the docs/pricing/API pages are all empty beyond a wallet-connect prompt. The actual data returned by this endpoint is entirely unknown.
Warnings
- —No OpenAPI or schema documentation available — request and response formats are unknown
- —Docs, pricing, and API pages render only a wallet-connect prompt with no useful content
- —The exact data returned for ICP tokens is not documented anywhere in the crawl
- —Platform appears to be a generic x402 demo or early-stage project with many listed endpoints but no substantive documentation
Citations
- —Endpoint returns 402 with x402 challenge requiring USDC payment on Base networkhttps://lowpaymentfee.com/api/v1/tokens/ICP
- —Price is $0.02 per request, no API keys, no rate limitshttps://lowpaymentfee.com
- —USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/tokens/ICP
- —Platform lists APIs across data analytics, AI/ML, finance/Web3, and infrastructure categorieshttps://lowpaymentfee.com