Marketplace · API · x402

x402-seller.onrender.com/water/flood-risk

Flood risk at a US river gauge: current water level measured against the official National Weather Service flood stages (action, minor, moderate, major), how many feet remain before each one is reached, and NOAA's own observed and forecast flood category. Answers "is this river near flooding". Takes a USGS site number or an NWS gauge ID. Not every gauge has official flood stages.

Endpoint	`https://x402-seller.onrender.com/water/flood-risk`
Trust	✓ Verified callable · 100% uptime over 1 checks · ~383 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	0xbd61dfb01f81c91f02b0ccd51b0220e0c8918639
method	GET
last updated	2026-11-12T04:50:48.987Z

Use it

Call it (an x402 client pays automatically)

curl -i https://x402-seller.onrender.com/water/flood-risk
# 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/x402-416c3342340d7b4c

Search the whole marketplace from your agent (MCP)

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