Marketplace · API · x402

kronossignals.com/api/v1/implied-prob/btc

Options-implied probability that BTC or ETH is above each given price at a target time, from the Deribit option book (skew-inclusive call-spread digitals): the options market's fair value for Kalshi/Polymarket crypto threshold contracts, not a forecast. Query: strikes=85000,90000 (up to 25), at=ISO time or Unix. $0.02 USDC via x402.

Endpoint	`https://kronossignals.com/api/v1/implied-prob/btc`
Trust	✓ Verified callable · 100% uptime over 1 checks · ~381 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	2026-10-21T23:05:22.463Z

Use it

Call it (an x402 client pays automatically)

curl -i https://kronossignals.com/api/v1/implied-prob/btc
# 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-f43b52f8be171873

Search the whole marketplace from your agent (MCP)

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