Data Lookup API
GET x402-seller.onrender.com/water/flood-risk
Why an agent can trust this route.
Sonar evidence is advisory. Paid delivery is shown as verified only when paid probes are available; otherwise route estimates use the unpaid handshake as a clearly labeled proxy.
Observed outcomes
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.
Resource: x402-seller.onrender.com/water/flood-risk
Network: eip155:8453 · Asset: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 · Pay to: 0xbd61dfb01f81c91f02b0ccd51b0220e0c8918639
Payment methods: — · Last validation: 2026-09-13 23:11:46.804+00
{
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [],
"properties": {
"lid": {
"type": "string",
"description": "NWS gauge ID (e.g. BRKM2), as an alternative to site"
},
"site": {
"type": "string",
"description": "USGS site number (e.g. 01646500)"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"properties": {
"site": {
"type": [
"string",
"null"
]
},
"usgs": {
"type": [
"object",
"null"
]
},
"gauge": {
"type": "object"
},
"trend": {
"type": [
"string",
"null"
]
},
"source": {
"type": "string"
},
"forecast": {
"type": "object"
},
"observed": {
"type": "object"
},
"floodStagesFt": {
"type": "object"
},
"nextThreshold": {
"type": [
"object",
"null"
]
},
"feetBelowStage": {
"type": "object"
}
}
}
}
},
"paymentRequirements": [
{
"raw": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xbd61dfb01f81c91f02b0ccd51b0220e0c8918639",
"amount": "310000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0xbd61dfb01f81c91f02b0ccd51b0220e0c8918639",
"scheme": "exact",
"network": "eip155:8453",
"amountAtomic": "310000"
}
]
}Source catalog records are retained separately from live endpoint observations. Sonar score, uptime, and latency are advisory metrics. CDP indexing is not inferred from validation.