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# List AHJs

GET https://api.coperniq.io/v1/ahjs

Retrieve a paginated list of Authorities Having Jurisdiction (AHJs).

Supports:

* Pagination (`page_size`, `page`)
* Sorting by name (`order_by`, default: asc)
* Search by name or state code (`q`) — when `q` is exactly two characters it also matches the two-letter state code
* Filter by `state` (two-letter code), `type`, and `country` (default: `US`)
* Geo mode: pass `lat`+`lng` (together) to return every AHJ whose boundary covers the point — e.g. city, county, and state — ordered most-specific-first. Name/state/type filters are ignored, and an empty array is returned if none cover the point.

Only active jurisdictions are returned. AHJs are seeded globally from the US Census TIGER catalog plus per-company private records. Most fields are read-only; only custom fields can be updated (see PATCH /ahjs/\{ahj\_id}).

Reference: https://docs.coperniq.io/api-reference/ahjs/list-ahjs

## Authentication

- `x-api-key` header (required) — API Key authentication via header

## Request

### Query parameters

- `page_size` (integer, optional, default: 20) — Number of items per page (max 100)
- `page` (integer, optional, default: 1) — Page number (1-based)
- `q` (string, optional) — Search by AHJ name (case-insensitive). If exactly two characters, also matches the state code.
- `state` (string, optional) — Filter by two-letter state code (e.g. "CA").
- `type` (enum, optional) — Filter by jurisdiction type.
  - Allowed values: `STATE`, `COUNTY`, `CITY`, `MUNICIPALITY`, `TOWNSHIP`, `TRIBAL`
- `country` (string, optional, default: US) — Filter by country code.
- `order_by` (enum, optional, default: asc) — Sort order for results
  - Allowed values: `asc`, `desc`
- `lat` (double, optional) — Latitude in decimal degrees. Must be used together with `lng`.
- `lng` (double, optional) — Longitude in decimal degrees. Must be used together with `lat`.

## Response

### 200

List of AHJs

- `list of AHJ`

## Errors

### 400 Bad Request Error

Invalid request

- `message` (string, optional)
- `code` (enum, optional)
  - Allowed values: `BAD_GATEWAY`
- `field` (string, optional) — Field that caused the validation error (if applicable)

### 401 Unauthorized Error

Authentication failed

- `message` (string, optional)
- `code` (enum, optional)
  - Allowed values: `BAD_GATEWAY`

### 502 Bad Gateway Error

Bad gateway — an upstream service request failed

- `message` (string, optional)
- `code` (enum, optional)
  - Allowed values: `BAD_GATEWAY`

## Types

### AHJ

An Authority Having Jurisdiction (AHJ). Most fields are read-only catalog data sourced from the US Census TIGER dataset; only fields under `custom` are user-editable.

- `id` (integer, optional) — Unique identifier.
- `uuid` (string, optional, nullable) — AHJID UUID (when known).
- `name` (string, optional) — Full AHJ name (e.g. "City of San Francisco").
- `type` (enum, optional, nullable) — Jurisdiction type.
  - Allowed values: `STATE`, `COUNTY`, `CITY`, `MUNICIPALITY`, `TOWNSHIP`, `TRIBAL`
- `country` (string, optional) — Two-letter country code (e.g. "US").
- `state` (string, optional, nullable) — Two-letter state code (e.g. "CA").
- `stateName` (string, optional, nullable) — Full state name (e.g. "California").
- `parentCounty` (string, optional, nullable) — For sub-county jurisdictions, the containing county name.
- `geoId` (string, optional, nullable) — US Census TIGER GEOID for the boundary.
- `ahjRegistryCode` (string, optional, nullable) — AHJ Registry composite code (e.g. "TX-4805000").
- `isActive` (boolean, optional) — Whether this AHJ is currently active in the catalog.
- `isPrivate` (boolean, optional, nullable) — True for company-private jurisdictions, false for global catalog entries.
- `pointOfContact` (string, optional, nullable)
- `submissionMethod` (string, optional, nullable) — How permit submissions are accepted (online, in-person, etc.).
- `emails` (list of string, optional)
- `phones` (list of string, optional)
- `address` (string, optional, nullable)
- `website` (string, optional, nullable)
- `portal` (string, optional, nullable) — Permit portal URL.
- `turnaround` (integer, optional, nullable) — Typical permit turnaround in days.
- `fees` (string, optional, nullable)
- `notes` (string, optional, nullable)
- `permitSubmissionNotes` (string, optional, nullable)
- `buildingCodeModel` (string, optional, nullable)
- `buildingCodeLocal` (string, optional, nullable)
- `residentialCodeModel` (string, optional, nullable)
- `residentialCodeLocal` (string, optional, nullable)
- `fireCodeModel` (string, optional, nullable)
- `fireCodeLocal` (string, optional, nullable)
- `electricalCodeModel` (string, optional, nullable)
- `electricalCodeLocal` (string, optional, nullable)
- `windCodeModel` (string, optional, nullable)
- `windCodeLocal` (string, optional, nullable)
- `codesOther` (string, optional, nullable)
- `firePathwaysEnforced` (boolean, optional, nullable)
- `electricalEngineerStampRequired` (boolean, optional, nullable)
- `structuralStampRequired` (boolean, optional, nullable)
- `climateZone` (string, optional, nullable)
- `ashraeMinTempC` (double, optional, nullable)
- `ashraeMaxTempC` (double, optional, nullable)
- `ashraeMinTempF` (double, optional, nullable) — Auto-computed from ashraeMinTempC. Used for NEC 690.7 max-Voc string sizing.
- `ashraeMaxTempF` (double, optional, nullable) — Auto-computed from ashraeMaxTempC. Used for thermal derating in PV performance modeling.
- `centroidLatitude` (double, optional, nullable)
- `centroidLongitude` (double, optional, nullable)
- `landAreaSqMiles` (double, optional, nullable)
- `specialZones` (list of string, optional, nullable)
- `buildingDeptHours` (list of string, optional, nullable)
- `tigerYear` (integer, optional, nullable)
- `funcstat` (string, optional, nullable) — US Census functional status code.
- `createdAt` (string, optional)
- `updatedAt` (string, optional)
- `custom` (map from string to any, optional) — Custom field values keyed by property keyName. This includes only customer-defined custom columns (see GET /properties?record_type=ahj). Built-in catalog AHJ fields (turnaround, website, fees, notes, etc.) are exposed as top-level fields on the AHJ object and are read-only.

## Examples

**Response**

```json
[
  {
    "id": 1,
    "uuid": "string",
    "name": "string",
    "type": "STATE",
    "country": "string",
    "state": "string",
    "stateName": "string",
    "parentCounty": "string",
    "geoId": "string",
    "ahjRegistryCode": "string",
    "isActive": true,
    "isPrivate": true,
    "pointOfContact": "string",
    "submissionMethod": "string",
    "emails": [
      "string"
    ],
    "phones": [
      "string"
    ],
    "address": "string",
    "website": "string",
    "portal": "string",
    "turnaround": 1,
    "fees": "string",
    "notes": "string",
    "permitSubmissionNotes": "string",
    "buildingCodeModel": "string",
    "buildingCodeLocal": "string",
    "residentialCodeModel": "string",
    "residentialCodeLocal": "string",
    "fireCodeModel": "string",
    "fireCodeLocal": "string",
    "electricalCodeModel": "string",
    "electricalCodeLocal": "string",
    "windCodeModel": "string",
    "windCodeLocal": "string",
    "codesOther": "string",
    "firePathwaysEnforced": true,
    "electricalEngineerStampRequired": true,
    "structuralStampRequired": true,
    "climateZone": "string",
    "ashraeMinTempC": 1.1,
    "ashraeMaxTempC": 1.1,
    "ashraeMinTempF": 1.1,
    "ashraeMaxTempF": 1.1,
    "centroidLatitude": 1.1,
    "centroidLongitude": 1.1,
    "landAreaSqMiles": 1.1,
    "specialZones": [
      "string"
    ],
    "buildingDeptHours": [
      "string"
    ],
    "tigerYear": 1,
    "funcstat": "string",
    "createdAt": "2024-01-15T09:30:00Z",
    "updatedAt": "2024-01-15T09:30:00Z",
    "custom": {}
  }
]
```

**SDK Code**

```python
import requests

url = "https://api.coperniq.io/v1/ahjs"

headers = {"x-api-key": "<apiKey>"}

response = requests.get(url, headers=headers)

print(response.json())
```

```javascript
const url = 'https://api.coperniq.io/v1/ahjs';
const options = {method: 'GET', headers: {'x-api-key': '<apiKey>'}};

try {
  const response = await fetch(url, options);
  const data = await response.json();
  console.log(data);
} catch (error) {
  console.error(error);
}
```

```go
package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "https://api.coperniq.io/v1/ahjs"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("x-api-key", "<apiKey>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(res)
	fmt.Println(string(body))

}
```

```ruby
require 'uri'
require 'net/http'

url = URI("https://api.coperniq.io/v1/ahjs")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Get.new(url)
request["x-api-key"] = '<apiKey>'

response = http.request(request)
puts response.read_body
```

```java
import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.Unirest;

HttpResponse<String> response = Unirest.get("https://api.coperniq.io/v1/ahjs")
  .header("x-api-key", "<apiKey>")
  .asString();
```

```php
<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('GET', 'https://api.coperniq.io/v1/ahjs', [
  'headers' => [
    'x-api-key' => '<apiKey>',
  ],
]);

echo $response->getBody();
```

```csharp
using RestSharp;

var client = new RestClient("https://api.coperniq.io/v1/ahjs");
var request = new RestRequest(Method.GET);
request.AddHeader("x-api-key", "<apiKey>");
IRestResponse response = client.Execute(request);
```

```swift
import Foundation

let headers = ["x-api-key": "<apiKey>"]

let request = NSMutableURLRequest(url: NSURL(string: "https://api.coperniq.io/v1/ahjs")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "GET"
request.allHTTPHeaderFields = headers

let session = URLSession.shared
let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
  if (error != nil) {
    print(error as Any)
  } else {
    let httpResponse = response as? HTTPURLResponse
    print(httpResponse)
  }
})

dataTask.resume()
```