# ClearCheck USDA Crop Price & Yield Lookup

> ClearCheck USDA Crop Price & Yield Lookup is a paid API for AI agents from loonie-toll.onrender.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Returns the latest USDA price received or yield for a specified crop, with recent trend data, nationally or by state.

## Facts

- Endpoint: GET https://loonie-toll.onrender.com/crops
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/clearcheck-usda-crop-price-yield-lookup-7397cc8b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_I9wImIXDC_bPaeCcdOTyo

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 clearcheck-usda-crop-price-yield-lookup-7397cc8b
```

Example prompt: What's the latest USDA price received for soybeans nationally, and how has it trended over the past 3 years?

## When to prefer this

Use this endpoint when you need official USDA price-received or yield data for US agricultural commodities, either nationally or by state, with built-in trend analysis and a plain-language verdict. Prefer this over raw USDA API access when you want a pre-summarized, agent-friendly response that includes trend direction and context rather than raw tabular data.

## Known failure modes

- Unknown or misspelled commodity name returns no data or an error
- Invalid 2-letter state code returns an error or empty result
- USDA NASS data not yet published for the current year may return prior-year data only
- Requesting a metric (yield vs price) not tracked for a given crop may return empty series
- Service unavailable due to Render cold-start delays on free tier
- Network timeout if USDA upstream is slow

## How this service works

USDA price or yield for a crop: latest value, unit and year, national or by state, with the recent trend.

## Output

Returns a structured response including the latest value, unit (e.g. $/BU or BU/ACRE), year, period, and location for the specified crop and metric; a multi-year trend series; a verdict string summarizing direction; reasons explaining the verdict; the data source (USDA NASS); a disclaimer; and the timestamp of retrieval.

## 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": [
      "commodity"
     ],
     "properties": {
      "state": {
       "type": "string",
       "description": "2-letter state code; omit for national"
      },
      "years": {
       "type": "integer",
       "description": "Years of history, default 3"
      },
      "metric": {
       "enum": [
        "price",
        "yield"
       ],
       "type": "string",
       "description": "PRICE RECEIVED or YIELD, default price"
      },
      "commodity": {
       "type": "string",
       "description": "Crop, e.g. CORN, SOYBEANS, WHEAT"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "item": {
       "type": "string"
      },
      "query": {
       "type": "object",
       "properties": {
        "state": {
         "type": "null"
        },
        "years": {
         "type": "integer"
        },
        "metric": {
         "type": "string"
        },
        "commodity": {
         "type": "string"
        }
       }
      },
      "latest": {
       "type": "object",
       "properties": {
        "item": {
         "type": "string"
        },
        "unit": {
         "type": "string"
        },
        "year": {
         "type": "integer"
        },
        "value": {
         "type": "number"
        },
        "period": {
         "type": "string"
        },
        "location": {
         "type": "string"
        }
       }
      },
      "series": {
       "type": "array",
       "items": {
        "type": "object",
        "properties": {
         "item": {
          "type": "string"
         },
         "unit": {
          "type": "string"
         },
         "year": {
          "type": "integer"
         },
         "value": {
          "type": "number"
         },
         "period": {
          "type": "string"
         },
         "location": {
          "type": "string"
         }
        }
       }

… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/clearcheck-usda-crop-price-yield-lookup-7397cc8b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from loonie-toll.onrender.com](https://www.zero.xyz/host/loonie-toll.onrender.com/llms.txt)