# FieldPulse Planting Window Optimizer

> FieldPulse Planting Window Optimizer is a paid API for AI agents from fieldpulse-tan.vercel.app, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-14).

Returns optimal planting dates for any crop and location by synthesizing live soil temperature, frost dates, crop calendars, and growing-degree-day requirements.

## Facts

- Endpoint: GET https://fieldpulse-tan.vercel.app/api/planting-window
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/fieldpulse-planting-window-optimizer-98b2fa94
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_00qQ_cwvsxLqPKGKh8EUx

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 fieldpulse-planting-window-optimizer-98b2fa94
```

Example prompt: What's the optimal planting window for corn near Ames, Iowa this season — factor in current soil temperatures, frost dates, and growing-degree-day requirements so I know when to get seeds in the ground.

## When to prefer this

Choose this endpoint when you need a science-backed, data-driven planting date recommendation that integrates live soil temperature, frost risk, and crop-specific growing-degree-day thresholds — rather than a generic static crop calendar. Ideal for grower and farmer agents making seasonal planting decisions that require real-time agronomic data fusion.

## Known failure modes

- Unsupported crop variety returns an error or null planting data
- Location outside supported geographic coverage returns no soil or frost data
- Soil temperature data temporarily unavailable due to sensor or upstream feed outage
- Missing required parameters (crop or location) returns a 400-level error
- Payment not processed or x402 auth failure results in 402 response blocking the call

## How this service works

Planting window optimizer for grower and farmer agents. Returns optimal planting dates from live soil temperature, frost dates, crop calendar, and growing-degree-day requirements for any crop and location.

## Output

Returns optimal planting dates and the full planting window for the requested crop and location, incorporating live soil temperature readings at multiple depths, last/first frost date estimates, crop-specific growing-degree-day requirements, and a crop calendar reference — giving growers a data-backed recommendation on when to plant.

## 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",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "lat": {
       "type": "string"
      },
      "lon": {
       "type": "string"
      },
      "crop": {
       "type": "string"
      },
      "lang": {
       "type": "string"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "errors": {
     "type": "object",
     "description": "Documented error responses, keyed by HTTP status code",
     "additionalProperties": {
      "type": "object",
      "required": [
       "description"
      ],
      "properties": {
       "example": {
        "type": "object"
       },
       "description": {
        "type": "string"
       }
      }
     }
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "crop": "potatoes",
  "frost_risk": {
   "first_autumn_frost": "2026-10-25",
   "last_frost_estimate": "2026-04-08",
   "frost_free_days_remaining": 198
  },
  "hemisphere": "northern",
  "soil_readiness": {
   "ready": true,
   "temperature_c": 12.4,
   "moisture_status": "optimal",
   "germination_threshold_c": 10
  },
  "planting_recommendation": {
   "status": "optimal_now",
   "optimal_window_end": "2026-05-10",
   "recommended_action": "Plant now — soil temperature and moisture are optimal",
   "optimal_window_start": "2026-04-15"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/fieldpulse-planting-window-optimizer-98b2fa94/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from fieldpulse-tan.vercel.app](https://www.zero.xyz/host/fieldpulse-tan.vercel.app/llms.txt)