PASDA Pennsylvania GIS Layer Query: Feature Attributes by Where Clause

pasda/layer-query

Queries one layer of a Pennsylvania Spatial Data Access (PASDA) map service and returns feature attributes (no geometry) for rows matching an ArcGIS where clause, 1 to 50 rows per call, with paging. Choose the output fields, an ordering and an offset. The response includes the layer's field list and an exceeded-limit flag when more rows match. An unknown folder, service or layer, or a where clause the layer rejects, returns a validation error. Passed through unmodified and served by Eden Engine; not an official PASDA or Penn State product.

activeper callv1

Price

$0.0026 per call

You pay the price shown. If a call turns out to cost more than its quote, you pay the actual price, capped at twice the quote. No monthly minimum. Top-ups start at $0.50.

Data source

Pennsylvania Spatial Data Access (PASDA), Penn State

Data from Pennsylvania Spatial Data Access (PASDA), Penn State, and the original data provider of each layer named in the service's copyright text. Served by Eden Engine; not an official PASDA or Penn State product.

Use it

Five steps: search, inspect, learn, run, settle. No per-tool setup; your agent reaches this tool through the meta-tools it already has.

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agent

// 1. search: find the tool
omnial_search({ query: "what you need" })

// 2. inspect: price and input schema
omnial_inspect({ tool: "pasda/layer-query" })

// 3. learn: read the usage guide at runtime
omnial_learn({ tool: "pasda/layer-query" })

// 4. run: price the exact call first, then run it
omnial_execute({ tool: "pasda/layer-query", input: { /* see input_schema */ }, dry_run: true })
omnial_execute({ tool: "pasda/layer-query", input: { /* ... */ } })

// 5. settle: the call is charged when it finishes, nothing to do

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Pricing

Every charge this tool can incur.

Charge	Price
Per call	$0.0026

Updated: Oct 24, 2026

Input and output schemas

Input schema

input_schema.json

{
  "type": "object",
  "required": [
    "folder",
    "service",
    "layer"
  ],
  "properties": {
    "layer": {
      "type": "integer",
      "maximum": 999,
      "minimum": 0,
      "description": "The layer id from the service-layers tool, for example 1."
    },
    "limit": {
      "type": "integer",
      "default": 10,
      "maximum": 50,
      "minimum": 1,
      "description": "How many rows to return, 1 to 50. Defaults to 10."
    },
    "where": {
      "type": "string",
      "default": "1=1",
      "maxLength": 500,
      "description": "An ArcGIS SQL where clause on the layer's fields, for example Class = 'Boro'. Defaults to 1=1 (all rows). A field the layer does not have is refused as a validation error."
    },
    "folder": {
      "type": "string",
      "pattern": "^[A-Za-z0-9_]{1,64}$",
      "description": "The folder, for example pasda."
    },
    "offset": {
      "type": "integer",
      "maximum": 1000000,
      "minimum": 0,
      "description": "Rows to skip, for paging. Leave out to start at the first row."
    },
    "service": {
      "type": "string",
      "pattern": "^[A-Za-z0-9_]{1,100}$",
      "description": "The service name without the folder, for example AdamsCounty."
    },
    "order_by": {
      "type": "string",
      "maxLength": 200,
      "description": "Optional ordering, for example Inc_Muni ASC."
    },
    "out_fields": {
      "type": "string",
      "default": "*",
      "maxLength": 500,
      "description": "Comma list of fields to return, for example County,Inc_Muni,Class. Defaults to all fields."
    }
  },
  "additionalProperties": false
}

Output schema

output_schema.json

{
  "type": "object",
  "required": [
    "features"
  ],
  "properties": {
    "fields": {
      "type": "array",
      "items": {
        "type": "object",
        "additionalProperties": true
      },
      "description": "The returned fields with `name`, `type` and `alias`."
    },
    "features": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "attributes": {
            "type": "object",
            "additionalProperties": true
          }
        },
        "additionalProperties": true
      },
      "description": "One entry per row; the row's values are under `attributes`."
    },
    "fieldAliases": {
      "type": "object",
      "additionalProperties": true
    },
    "displayFieldName": {
      "type": "string"
    },
    "exceededTransferLimit": {
      "type": "boolean",
      "description": "True when more rows match than were returned."
    }
  },
  "additionalProperties": true
}