Today's UV Index forecast by US ZIP code or city, with hourly peak and UV Alert, from EPA and NWS.
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What a UV Index number means on the EPA scale (0 to 2 Low, 3 to 7 Moderate to High, 8 and above Very High to Extreme) and the EPA sun protection advice for it, plus the NWS UV Alert rule. No network call.
UV Index value, for example 7.
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claude mcp add --transport http uv-index-today-mcp https://uv-index-today-mcp.lipmichal.workers.dev/mcp
What a UV Index number means on the EPA scale (0 to 2 Low, 3 to 7 Moderate to High, 8 and above Very High to Extreme) and the EPA sun protection advice for it, plus the NWS UV Alert rule. No network call.
| Argument | Type | Description |
|---|---|---|
| uv_index* | number | UV Index value, for example 7. |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"uv_index"
],
"properties": {
"uv_index": {
"type": "number",
"maximum": 25,
"minimum": 0,
"description": "UV Index value, for example 7."
}
},
"additionalProperties": false
}Hour by hour UV Index forecast for a US ZIP code or city and state, in the local time of that place, read now from EPA. Returns each hour with its EPA band, the peak hour and the window when UV is 3 or higher. Use it for "when is the sun strongest today" and "what time is safe to be outside" questions.
| Argument | Type | Description |
|---|---|---|
| zip | string | US ZIP code, 5 digits, for example "33101". Use this or city plus state. |
| city | string | US city name, for example "Phoenix". Needs state. |
| state | string | Two-letter state code for the city, for example "AZ". |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"properties": {
"zip": {
"type": "string",
"maxLength": 10,
"description": "US ZIP code, 5 digits, for example \"33101\". Use this or city plus state."
},
"city": {
"type": "string",
"maxLength": 60,
"description": "US city name, for example \"Phoenix\". Needs state."
},
"state": {
"type": "string",
"maxLength": 2,
"description": "Two-letter state code for the city, for example \"AZ\"."
}
},
"additionalProperties": false
}Today's UV Index forecast for a US ZIP code or city and state, read now from EPA (the NWS daily forecast). Returns the UV Index, the EPA category and sun protection advice, whether a UV Alert is in effect, the hourly peak and the local hours when UV is 3 or higher. Your training data cannot know today's UV Index.
| Argument | Type | Description |
|---|---|---|
| zip | string | US ZIP code, 5 digits, for example "33101". Use this or city plus state. |
| city | string | US city name, for example "Phoenix". Needs state. |
| state | string | Two-letter state code for the city, for example "AZ". |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"properties": {
"zip": {
"type": "string",
"maxLength": 10,
"description": "US ZIP code, 5 digits, for example \"33101\". Use this or city plus state."
},
"city": {
"type": "string",
"maxLength": 60,
"description": "US city name, for example \"Phoenix\". Needs state."
},
"state": {
"type": "string",
"maxLength": 2,
"description": "Two-letter state code for the city, for example \"AZ\"."
}
},
"additionalProperties": false
}We read every tool's name, description and inputs the way the model will, looking for instructions hidden from you. A clean result means no warning signs, not a guarantee. Scanned Nov 5, 2026.