# Farm & Garden Calc – Lime Rate Estimator

> Farm & Garden Calc – Lime Rate Estimator is a paid API for AI agents from agri-calc.x402tookit.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-30).

Estimates illustrative agricultural lime application rate to raise soil pH, based on soil texture, current and target pH, product strength, and incorporation depth.

## Facts

- Endpoint: GET https://agri-calc.x402tookit.com/lime-estimate?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-30
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/farm-garden-calc-lime-rate-estimator-217d740a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_6WOVHqzDfkrsEnx7SYO7P

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 farm-garden-calc-lime-rate-estimator-217d740a
```

Example prompt: Can you estimate how much lime I'd need to raise my loam soil from pH 5.2 to 6.5, using a lime product with 90% ECCE strength, incorporated to 6 inches, for a 10-acre field?

## When to prefer this

Use this endpoint when you need a quick, ballpark lime application estimate based on soil texture and pH targets without access to a certified soil lab. Ideal for planning purposes, budgeting lime purchases, or educational contexts. Not suitable when regulatory-compliant or precision agronomic recommendations are required — in those cases, a certified soil lab test should be used instead.

## Known failure modes

- Missing required parameters (currentPh, targetPh, or texture) returns an error
- currentPh outside range 3.5–8.5 may produce invalid or boundary results
- Invalid texture value (not sand, loam, or clay) returns an error
- targetPh exceeding 7.5 is outside the supported range
- Results are illustrative only and should not replace certified lab soil test recommendations

## How this service works

ILLUSTRATIVE lime rate estimate to raise soil pH, by texture, product strength and depth. Not a lab recommendation.

## Output

Returns an illustrative lime application estimate including lime product tons per acre, pure lime tons per acre, lime product kg per hectare, total product tons for the specified area, the pH change being targeted, a buffering factor used, whether a split application is suggested, and a disclaimer noting this is not a laboratory soil test recommendation.

## 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": [
      "currentPh",
      "targetPh",
      "texture"
     ],
     "properties": {
      "depthIn": {
       "type": "number",
       "description": "Incorporation depth in inches (default 6; rate scales linearly)"
      },
      "eccePct": {
       "type": "number",
       "description": "Lime product strength as percent ECCE (default 100 = pure calcium carbonate)"
      },
      "texture": {
       "type": "string",
       "description": "sand, loam or clay (sets the illustrative buffering factor)"
      },
      "targetPh": {
       "type": "number",
       "description": "Target soil pH, up to 7.5"
      },
      "areaAcres": {
       "type": "number",
       "description": "Area in acres for the total tons (default 1)"
      },
      "currentPh": {
       "type": "number",
       "description": "Current soil pH (water pH), 3.5 to 8.5"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "area": {
       "type": [
        "null",
        "number"
       ]
      },
      "asOf": {
       "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"
       ]
      },
      "phChange": {
       "type": [
        "null",
        "number"
       ]
      },
      "disclaimer": {
       "type": [
        "null",
        "string"
       ]
      },
      "notChecked": {
       "type": [
        "array",
        "null"
       ],
       "items": {
        "type": "string
… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/farm-garden-calc-lime-rate-estimator-217d740a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agri-calc.x402tookit.com](https://www.zero.xyz/host/agri-calc.x402tookit.com/llms.txt)