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Garden Calculators – Frost Risk
x402
Garden Calculators – Frost Risk is a paid API for AI agents from garden-calc.x402tookit.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-29).
Returns the freeze class of a forecast overnight low against plant hardiness, and indicates where a given date falls relative to average frost dates.
Price / call$0.02
Success—
StatusUnknown
How this service works
Frost or freeze class of a forecast low against plant hardiness, plus where a date sits against your average frost dates.
Output
Returns a freeze class (e.g. light freeze, hard freeze), the freeze band temperature range, whether the low is below the plant's damage threshold, the typical damage threshold in °F, protection advice, a plain-language verdict and summary, reasons explaining the assessment, and — when frost dates and a date are supplied — the spring calendar position and how many days the date is before or after the average last frost.
Example use cases
Protecting tender seedlings before a cold snap
“The forecast overnight low is 28°F tonight and I have tender basil seedlings outside. My average last spring frost is April 20 and today is April 15 — tell me the freeze class and whether I need to cover them.”
Checking fall frost risk for half-hardy plants
“It's September 8 and tonight's low is supposed to be 33°F. My half-hardy dahlias are still in the ground and my average first fall frost is September 25 — what's the freeze risk and should I dig them up?”
Calendar position check for spring planting
“Is April 30 before or after my average last frost date of May 5? Tonight's low is 38°F and I want to know if it's safe to transplant my half-hardy pepper starts.”
Technical details
Endpoint
GEThttps://garden-calc.x402tookit.com/frost-risk?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to classify a specific forecast overnight low against a plant's cold tolerance and/or determine where a given calendar date sits relative to a gardener's local average frost dates. It is purpose-built for home gardeners and gardening agents needing actionable freeze-risk verdicts, damage thresholds, and calendar-aware planting guidance — rather than a generic weather or almanac lookup.
Side effects
- Missing required lowTemp parameter returns a validation error
- Invalid date format (not YYYY-MM-DD) causes a parsing error
- Unknown hardiness value outside allowed enum may be ignored or cause an error
- Very extreme temperatures (e.g. >120°F or <-60°F) may return degraded:true
- If frost dates are omitted, spring/fall calendar position fields return null
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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