mirrored listing x402 eip155:8453solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp

[3-LEG] Agriculture chain, one grain belt (?loc=us-iowa): leading soil drought (USDM D0-D4

[3-LEG] Agriculture chain, one grain belt (?loc=us-iowa): leading soil drought (USDM D0-D4) -> current heat stress and growing degree days -> realized crop vigour VHI - did the drought actually reach the crop (confirmation gate). A chain, not one reading: confidence = how many legs are lit, in order. Sources: USDM/NDMC, NASA POWER, NOAA STAR. Descriptive only, never a forecast or advice. No data -> 422 no_charge, not billed. $0.25 per call.

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Claim this listing
250000 (raw units)
price
17
calls / 30d
2
unique payers
2026-09-07
updated

Provider

api.truthbear.co · discovered, not yet claimed by its owner

Payment (x402 accepts[])

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x2d16a243ba9facc6ac85519d5efad2149dc4c6c3",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "250000",
    "maxTimeoutSeconds": 300
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "payTo": "8qEn3Y3GPXdQ28LHshPa4UYeD8V38Lq9b4jCRirQAY3n",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "250000",
    "maxTimeoutSeconds": 300
  }
]

Output schema

{
  "bazaar": {
    "discoverable": true,
    "info": {
      "input": {
        "example": {
          "format": "thin",
          "loc": "us-iowa"
        },
        "exampleRequest": "/gauge/agri-region?loc=us-iowa&format=thin",
        "method": "GET",
        "queryParams": {
          "loc": "required - location id; full list at free /gauge/preview"
        },
        "type": "http"
      },
      "output": {
        "example": {
          "grade": "screening-level, not decision-grade",
          "legs": {
            "crop_vhi": {
              "band": "normal",
              "record_hash": "sha256:3a2dae57b8bb21c1b8cf83bb25d2aace7204dc9a80fc62782a1f1621183a67d4",
              "source_ref": "https://www.star.nesdis.noaa.gov/smcd/emb/vci/VH/(get_TS_admin.php CROP VHI)"
            },
            "drought": {
              "band": "normal",
              "record_hash": "sha256:5c5f46fb816028010748b0c081adade34d0330efd1b07401410e697d03b6580c",
              "source_ref": "https://open-meteo.com/en/docs/historical-weather-api(ERA5 soil moisture)"
            },
            "heat": {
              "band": "below_warning",
              "record_hash": "sha256:454bc7664c8f82954a12a52f1f425223c1dfb9d72ced46320a22a804cd0e8271",
              "source_ref": "https://open-meteo.com/en/docs (temperature_2m_max/min; GDD base 10 degC 86/50)"
            }
          },
          "location": "us-iowa",
          "name": "US Corn Belt - Iowa",
          "nature": "This API supplies data organisation and trend description only. It is not a recommendation to act; the decision is yours. Purely descriptive - no judgement, no prediction. Official source plus record_hash; verify with the free /gauge/verify.",
          "provenance": {
            "age_hours_now": 423,
            "freshness": "stale",
            "freshness_basis": "cadence=default; fresh<=24h; recent<=192h; dead_source>1440h; age_basis=request-time(now minus observed_at)"
          },
          "scope": {
            "full": "https://api.truthbear.co/scope/v1",
            "intelligence_not_command": true,
            "monitoring_not_forecast": true,
            "verifiability": "unknown"
          }
        },
        "type": "json"
      }
    },
    "outputSchemaRef": "/manifest",
    "priceUsd": "$0.25",
    "priceUsdNumber": 0.25,
    "routeTemplate": "/gauge/agri-region",
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "properties": {
            "method": {
              "enum": [
                "GET"
              ],
              "type": "string"
            },
            "queryParams": {
              "additionalProperties": false,
              "properties": {
                "loc": {
                  "description": "required - location id; full list at free /gauge/preview",
                  "examples": [
                    "us-iowa",
                    "us-illinois",
                    "us-nebraska",
                    "us-kansas",
                    "ar-pampas",
                    "br-matogrosso"
                  ],
                  "type": "string",
                  "x-accepted-values": {
                    "all": "https://api.truthbear.co/schemas/gauge-agri-region.input.json",
                    "shown": 6,
                    "total": 12
                  }
                }
              },
              "required": [
                "loc"
              ],
              "type": "object"
            },
            "type": {
              "const": "http"
            }
          },
          "required": [
            "type",
            "method",
            "queryParams"
          ],
          "type": "object"
        },
        "output": {
          "properties": {
            "example": {},
            "type": {
              "const": "json"
            }
          },
          "required": [
            "type"
          ],
          "type": "object"
        }
      }
    }
  }
}

Use it

curl

curl "https://api.truthbear.co/gauge/agri-region"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

JavaScript

const res = await fetch("https://api.truthbear.co/gauge/agri-region");
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}

Python

import httpx
res = httpx.get("https://api.truthbear.co/gauge/agri-region")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header

Machine-readable

Everything on this page is also available as clean JSON at /resources/4439.json, and this resource appears in /discovery/resources and /discovery/search.