Marketplace · API · x402

kronossignals.com/api/v1/cex-premium/:asset

Coinbase price premium vs composite spot median (OKX + Kraken + Binance). premium_pct = (coinbase / composite_median − 1) × 100. Positive = US/institutional demand skew; negative = global selling pressure. Covers BTC/ETH/SOL/XRP/DOGE/ADA/AVAX/LINK/DOT/LTC/BCH/ATOM/NEAR (assets listed on Coinbase). Point-in-time only — no historical baseline stored. $0.02 USDC per call via x402.

Endpoint	`https://kronossignals.com/api/v1/cex-premium/:asset`
Trust	100% uptime over 1 checks · ~332 ms
Pricing	Pay per call with x402, no account. Call it to get an exact quote before paying.
network	eip155:8453
scheme	exact
pay to	0x36038e1d712c5e39f35952164ec58ec2b96caee7
method	GET
last updated	2026-11-09T03:25:57.287Z

Use it

Call it (an x402 client pays automatically)

curl -i https://kronossignals.com/api/v1/cex-premium/:asset
# 402 reply -> sign PAYMENT-REQUIRED with an x402 client (e.g. @x402/fetch) -> retry with PAYMENT-SIGNATURE

This listing as JSON

curl https://aipaygen.com/v1/catalog/api/x402-213d870aa2d1d7db

Search the whole marketplace from your agent (MCP)

{
  "mcpServers": {
    "aipaygen": {
      "url": "https://aipaygen.com/mcp"
    }
  }
}