Skip to content
All data sources

Texas County Exemption Rules API and MCP server

No authtexas-county-rules

Per-county Texas agricultural and wildlife exemption thresholds, appraisal district contacts and protest portals, tax rates, and productivity values, for all 254 counties.

Texas County Exemption Rules is published by ParcelOps Texas county reference layer and covers Texas — all 254 counties.

It refreshes on a schedule the publisher sets.

Last verified . That is when these facts were last rebuilt from the ParcelOps source registry, not when ParcelOps Texas county reference layer last refreshed the data itself.

API access

Your AI client reaches Texas County Exemption Rules through one ParcelOps MCP endpoint, so there is no separate key to hold for it and no per-source client to write. Reaching it takes no credentials of your own.

Where it came from

PublisherParcelOps Texas county reference layer

Freshness and coverage

FreshnessScheduled · Compiled from appraisal district guidelines, Comptroller publications, and TPWD guidance. Refreshed on the annual appraisal cycle, not live.
Places coveredTexas — all 254 counties
Time coveredNot declared
CredentialsNo credentials required

What this source cannot tell you

  • Anything outside Texas — all 254 counties. A request past that edge comes back empty rather than approximated.
  • Which years it spans, because the covered period is not declared.
  • Anything ParcelOps Texas county reference layer does not publish. ParcelOps returns this source as it stands and never fills a blank field from a different one.
  • Agricultural and wildlife thresholds are reviewed for 78 of 254 counties; every response reports provenance.verified so unreviewed rows are visible.
  • 37 counties have no livestock minimum on file and 5 have no wildlife minimum. These return null and are named in provenance.missingFields, never coerced to zero.
  • County tax rates currently cover tax year 2024 only and must not be read as current-year rates.
  • Ecoregion mapping covers 249 of 254 counties.
  • Qualification is determined by the county appraisal district under the Texas Property Tax Code. Confirm every threshold and deadline with the district before filing.

Methods (6)

A method is one call your agent can make against this source.

  • getCountyRequirements

    read

    Agricultural and wildlife exemption thresholds for one Texas county.

    What you must providecounty
    FreshnessScheduled (source-level)
    Input schema
    {
      "type": "object",
      "properties": {
        "county": {
          "type": "string",
          "maxLength": 64
        }
      },
      "required": [
        "county"
      ],
      "additionalProperties": false
    }
  • getAppraisalDistrict

    read

    Appraisal district contacts, protest portal, and filing channels for a county.

    What you must providecounty
    FreshnessScheduled (source-level)
    Input schema
    {
      "type": "object",
      "properties": {
        "county": {
          "type": "string",
          "maxLength": 64
        }
      },
      "required": [
        "county"
      ],
      "additionalProperties": false
    }
  • getAgProductivityValues

    read

    Per-acre productivity values by land class, with published vs derived basis.

    What you must providecounty
    FreshnessScheduled (source-level)
    Input schema
    {
      "type": "object",
      "properties": {
        "county": {
          "type": "string",
          "maxLength": 64
        },
        "taxYear": {
          "type": "integer",
          "minimum": 1990,
          "maximum": 2100
        },
        "landClass": {
          "type": "string",
          "maxLength": 64
        }
      },
      "required": [
        "county"
      ],
      "additionalProperties": false
    }
  • getCountyTaxRates

    read

    County, median school district, and combined rural tax rates by year.

    What you must providecounty
    FreshnessScheduled (source-level)
    Input schema
    {
      "type": "object",
      "properties": {
        "county": {
          "type": "string",
          "maxLength": 64
        },
        "taxYear": {
          "type": "integer",
          "minimum": 1990,
          "maximum": 2100
        }
      },
      "required": [
        "county"
      ],
      "additionalProperties": false
    }
  • listLandUseCodes

    read

    Texas Comptroller state Category codes and their exemption flags.

    FreshnessScheduled (source-level)
    Input schema
    {
      "type": "object",
      "properties": {
        "agOpenSpaceOnly": {
          "type": "boolean"
        },
        "category": {
          "type": "string",
          "maxLength": 64
        }
      },
      "required": [],
      "additionalProperties": false
    }
  • getServiceInfo

    read

    Return measured coverage, known gaps, and legal-use notes.

    FreshnessScheduled (source-level)
    Input schema
    {
      "type": "object",
      "properties": {},
      "required": [],
      "additionalProperties": false
    }

Where this source is used