Marketplace · API · x402

intel.chainquery.com/v1/coin-velocity

ChainQuery Bitcoin Intelligence: independent Bitcoin-native on-chain data over x402, no API key. 90- and 365-day rolling coin-velocity time series derived from CDD and supply.

Endpoint	`https://intel.chainquery.com/v1/coin-velocity`
Trust	✓ Verified callable · 100% uptime over 1 checks · ~343 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	0x7Cf45cD775Bdf31a5a96fa0A5805DF0b610D87ff
method	GET
last updated	2026-10-27T09:50:03.545Z

Use it

Call it (an x402 client pays automatically)

curl -i https://intel.chainquery.com/v1/coin-velocity
# 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/x402-9d690a3bc2a2cf51

Search the whole marketplace from your agent (MCP)

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