Index onlineMerchant portal
Api Endpoint

opendata402

Sunrise, sunset, solar noon, day length and the sun's elevation at noon for any latitude, longitude and date, computed with the NOAA solar algorithm (accurate to about a minute; times in UTC; polar day and night handled). Use it for solar panel and lighting schedules, photography, outdoor work planning and daylight-dependent automations.

Open interactive test console

Offering

Provider
opendata402.com
Method
GET
Offering type
Api Endpoint
Transport type
http
Category
Weather And Environment
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://opendata402.com/v1/sun
MIME type
application/json
First seen
2026-10-16T01:50:24.663Z
Last seen
Tags
sun, sunrise, sunset, solar, astronomy

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1
0.001 USDC
Atomic price: 1000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Payment option 2
0.001 USDC
Atomic price: 1000 · Network: eip155:137 · Asset: USDC · Scheme: exact
Payment option 3
0.001 USDC
Atomic price: 1000 · Network: eip155:42161 · Asset: USDC · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "1000",
    "payTo": "0x295AA6c5a3460A0f8755823C8eE7bBC7CAf79fb1"
  },
  {
    "scheme": "exact",
    "network": "eip155:137",
    "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
    "amount": "1000",
    "payTo": "0x295AA6c5a3460A0f8755823C8eE7bBC7CAf79fb1"
  },
  {
    "scheme": "exact",
    "network": "eip155:42161",
    "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
    "amount": "1000",
    "payTo": "0x295AA6c5a3460A0f8755823C8eE7bBC7CAf79fb1"
  }
]

Observed health

Status
Healthy
Latest latency
249 ms
Average latency
655 ms
HTTP status
402
Last checked
Reachability
100% over 12 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "const": "http"
    },
    "method": {
      "type": "string",
      "enum": [
        "GET"
      ]
    },
    "queryParams": {
      "type": "object",
      "properties": {
        "lat": {
          "type": "string",
          "pattern": "^-?\\d{1,2}(\\.\\d+)?$",
          "description": "Latitude -90..90."
        },
        "lon": {
          "type": "string",
          "pattern": "^-?\\d{1,3}(\\.\\d+)?$",
          "description": "Longitude -180..180."
        },
        "date": {
          "type": "string",
          "pattern": "^\\d{4}-\\d{2}-\\d{2}$",
          "description": "YYYY-MM-DD (default today, UTC)."
        }
      },
      "required": [
        "lat",
        "lon"
      ]
    }
  },
  "required": [
    "type",
    "method"
  ],
  "additionalProperties": false
}

Output schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "additionalProperties": false,
      "properties": {
        "method": {
          "enum": [
            "GET"
          ],
          "type": "string"
        },
        "queryParams": {
          "properties": {
            "date": {
              "description": "YYYY-MM-DD (default today, UTC).",
              "pattern": "^\\d{4}-\\d{2}-\\d{2}$",
              "type": "string"
            },
            "lat": {
              "description": "Latitude -90..90.",
              "pattern": "^-?\\d{1,2}(\\.\\d+)?$",
              "type": "string"
            },
            "lon": {
              "description": "Longitude -180..180.",
              "pattern": "^-?\\d{1,3}(\\.\\d+)?$",
              "type": "string"
            }
          },
          "required": [
            "lat",
            "lon"
          ],
          "type": "object"
        },
        "type": {
          "const": "http",
          "type": "string"
        }
      },
      "required": [
        "type",
        "method"
      ],
      "type": "object"
    },
    "output": {
      "properties": {
        "example": {
          "type": "object"
        },
        "type": {
          "type": "string"
        }
      },
      "required": [
        "type"
      ],
      "type": "object"
    }
  },
  "required": [
    "input"
  ],
  "type": "object"
}