# Garden Calculators – Planting Date Calendar

> Garden Calculators – Planting Date Calendar 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).

Calculates specific calendar dates for gardening tasks (e.g. starting seeds indoors, transplanting) based on a frost date and weeks-before/after offsets.

## Facts

- Endpoint: GET https://garden-calc.x402tookit.com/planting-dates?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/garden-calculators-planting-date-calendar-577a93c5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_X41n0aOGX9fgYq4gOUo_R

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability garden-calculators-planting-date-calendar-577a93c5
```

Example prompt: My average last spring frost date is May 10 — can you build me a planting calendar with these tasks: tomato seeds indoors 6 weeks before, tomato transplant 2 weeks after, lettuce direct sow 4 weeks before, and basil seeds indoors 4 weeks before?

## When to prefer this

Use this endpoint when you need to convert frost-date-relative week offsets into concrete calendar dates for garden planning. It is purpose-built for gardening task scheduling and handles negative (before frost) and positive (after frost) offsets in a single call, returning a fully structured schedule. Prefer it over generic date arithmetic when working with planting calendars, as it packages gardening-specific context like weekday labels and span summaries.

## Known failure modes

- Missing required frostDate query parameter returns an error
- Missing required tasks parameter returns an error
- Malformed frostDate (not YYYY-MM-DD) causes a parse error
- Malformed tasks string (wrong delimiter or format) may produce incomplete or empty schedule
- Weeks offsets that produce dates far outside planting season may still return results with no validation warning
- Degraded flag may be set if the service has partial issues

## How this service works

Planting calendar from your frost date: dates for tasks given as weeks before or after, such as seeds indoors 6 weeks before.

## Output

Returns a schedule array where each entry has the task name, computed calendar date, weekday, days and weeks from the frost date, and a relation label (before/after). Also includes the earliest and latest task dates, total span in days, the frost date used, a summary, and a disclaimer about local variation.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "frostDate",
      "tasks"
     ],
     "properties": {
      "tasks": {
       "type": "string",
       "description": "Lines task:weeks separated by semicolons; negative weeks are before the frost date, positive after, for example 'tomato seeds indoors:-6; tomato transplant:2; lettuce:-4'"
      },
      "frostDate": {
       "type": "string",
       "description": "Your average last spring frost (or first fall frost) date, YYYY-MM-DD"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "asOf": {
       "type": [
        "null",
        "string"
       ]
      },
      "latest": {
       "type": [
        "null",
        "string"
       ]
      },
      "source": {
       "type": [
        "null",
        "string"
       ]
      },
      "reasons": {
       "type": [
        "array",
        "null"
       ],
       "items": {
        "type": "string"
       }
      },
      "summary": {
       "type": [
        "null",
        "string"
       ]
      },
      "verdict": {
       "type": [
        "null",
        "string"
       ]
      },
      "degraded": {
       "type": [
        "boolean",
        "null"
       ]
      },
      "earliest": {
       "type": [
        "null",
        "string"
       ]
      },
      "schedule": {
       "type": [
        "array",
        "null"
       ],
       "items": {
        "type": "object",
        "properties": {
         "date": {
          "type": [
           "null",
           "string"
          ]
         },
         "task": {
          "type": [
           "null",
           "string"
          ]
         },
         "weekday": {
          "type": [
           "null",
           "string"
          ]
         },
         "relation": {
          "type": [
           "null",
           "string"
          ]
         },
         "daysFromFrost": {
          "type": [
   
… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/garden-calculators-planting-date-calendar-577a93c5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from garden-calc.x402tookit.com](https://www.zero.xyz/host/garden-calc.x402tookit.com/llms.txt)