Aristocles Pty Ltd Government Directory API

The authoritative register of all registered .gov domain names, published by the US Cybersecurity and Infrastructure Security Agency. Each row gives the domain, whether it belongs to a federal, state, city, county or tribal body, and the owning agency and organisation. It is the ground truth for deciding whether a US government web address is genuine. Source: Source: Cybersecurity and Infrastructure Security Agency (CISA), .gov Program - dotgov-data.. Licence: Public Domain (U.S. Government Work, CC0 1.0). Base path: /v1/data/united-states-government-domain-names. Requires an API key (X-API-Key).

Operations 3

GET /v1/data/united-states-government-domain-names List United States Government Domain Names records #
GET /v1/data/united-states-government-domain-names/search Search United States Government Domain Names by organization #
GET /v1/data/united-states-government-domain-names/{key} Get one United States Government Domain Names record by domain_name #

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OpenAPI Specification

aristocles-com-au-government-directory-api-openapi.yml Raw ↑
openapi: 3.2.0
info:
  title: Aristocles Data Government Directory API
  description: 'Four Australian data APIs on one key — subscriptions, trade pricing, PBS drugs, and rental prices.


    ---


    ## Quick start


    **1. Get your API key** — register in one request:

    ```

    POST /v1/auth/register

    {"email": "you@example.com", "name": "Your Name"}

    ```

    Copy the `api_key` from the response.


    **2. Authenticate** — add your key to every request as a header:

    ```

    X-API-Key: ar_live_xxxxxxxxxxxx

    ```


    **3. Run the discovery endpoint** — returns all available slugs, example calls, and your account limits:

    ```

    GET /v1/discovery

    ```


    **4. Make your first call:**

    ```

    GET /v1/prices/netflix?country=AU

    GET /v1/trades/electrician/prices?state=NSW&country=AU

    GET /v1/pbs/metformin

    GET /v1/rental/VIC/Richmond

    ```


    ---


    ## Four data domains


    | Domain | Base path | What it covers |

    |---|---|---|

    | **Subscription Pricing** | `/v1/prices`, `/v1/services` | 50+ SaaS & streaming services: Netflix, Spotify, Adobe, etc. |

    | **Contractor Trades** | `/v1/trades` | Plumbers, electricians, painters across AU, US, UK, CA, NZ |

    | **PBS Drug Pricing** | `/v1/pbs` | 14,000+ medications on Australia''s Pharmaceutical Benefits Scheme |

    | **Rental Market** | `/v1/rental` | Median weekly rent by suburb and postcode across Australia |

    | **RBA Economic Data** | `/v1/rba` | Cash rate, AUD FX rates, CPI inflation, mortgage rates, credit aggregates |


    ---


    ## MCP Server


    All four data domains are also available as MCP tools at:

    ```

    https://api.aristocles.com.au/mcp/

    ```

    Connect any MCP-compatible AI agent (Claude, GPT, Gemini) to get structured data without writing API calls.'
  version: 2.1.0
tags:
- name: Government Directory
  description: 'The authoritative register of all registered .gov domain names, published by the US Cybersecurity and Infrastructure Security Agency. Each row gives the domain, whether it belongs to a federal, state, city, county or tribal body, and the owning agency and organisation. It is the ground truth for deciding whether a US government web address is genuine. Source: Source: Cybersecurity and Infrastructure Security Agency (CISA), .gov Program - dotgov-data.. Licence: Public Domain (U.S. Government Work, CC0 1.0). Base path: /v1/data/united-states-government-domain-names. Requires an API key (X-API-Key).'
paths:
  /v1/data/united-states-government-domain-names:
    get:
      tags:
      - Government Directory
      summary: List United States Government Domain Names records
      description: 'List United States Government Domain Names records with optional filters and pagination.


        **Source:** Source: Cybersecurity and Infrastructure Security Agency (CISA), .gov Program - dotgov-data. (Public Domain (U.S. Government Work, CC0 1.0)).


        **Fields returned:**

        - `domain_name` (str) — The registered .gov domain name.

        - `domain_type` (str) — Level of government, e.g. Federal Agency, State, City, County or Tribal.

        - `agency` (str) — Parent agency or department responsible for the domain.

        - `organization` (str) — Specific organisation or office that registered the domain.

        - `city` (str) — City recorded for the registering organisation.

        - `state` (str) — State or territory recorded for the registering organisation.


        **Example:** `GET /v1/data/united-states-government-domain-names?limit=10&domain_type=example`'
      operationId: list_endpoint_v1_data_united_states_government_domain_names_get
      parameters:
      - name: limit
        in: query
        required: false
        schema:
          type: integer
          maximum: 100
          minimum: 1
          description: Max records to return (1-100).
          default: 25
          title: Limit
        description: Max records to return (1-100).
      - name: offset
        in: query
        required: false
        schema:
          type: integer
          minimum: 0
          description: Records to skip, for pagination.
          default: 0
          title: Offset
        description: Records to skip, for pagination.
      - name: domain_type
        in: query
        required: false
        schema:
          anyOf:
          - type: string
          - type: 'null'
          description: Level of government, e.g. Federal Agency, State, City, County or Tribal.
          examples:
          - example
          title: Domain Type
        description: Level of government, e.g. Federal Agency, State, City, County or Tribal.
      - name: agency
        in: query
        required: false
        schema:
          anyOf:
          - type: string
          - type: 'null'
          description: Parent agency or department responsible for the domain.
          examples:
          - example
          title: Agency
        description: Parent agency or department responsible for the domain.
      - name: state
        in: query
        required: false
        schema:
          anyOf:
          - type: string
          - type: 'null'
          description: State or territory recorded for the registering organisation.
          examples:
          - example
          title: State
        description: State or territory recorded for the registering organisation.
      - name: X-API-Key
        in: header
        required: true
        schema:
          type: string
          title: X-Api-Key
      responses:
        '200':
          description: A page of United States Government Domain Names records with pagination metadata.
          content:
            application/json:
              schema: {}
              example:
                data:
                  items:
                  - domain_name: example
                    domain_type: example
                    agency: example
                    organization: example
                    city: example
                    state: example
                  total: 1
                  limit: 25
                  offset: 0
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
  /v1/data/united-states-government-domain-names/search:
    get:
      tags:
      - Government Directory
      summary: Search United States Government Domain Names by organization
      description: 'Search United States Government Domain Names records by `organization` (partial, case-insensitive).


        **Example:** `GET /v1/data/united-states-government-domain-names/search?q=exa`'
      operationId: search_endpoint_v1_data_united_states_government_domain_names_search_get
      parameters:
      - name: q
        in: query
        required: true
        schema:
          type: string
          minLength: 2
          maxLength: 100
          description: Case-insensitive partial match on organization.
          examples:
          - exa
          title: Q
        description: Case-insensitive partial match on organization.
      - name: limit
        in: query
        required: false
        schema:
          type: integer
          maximum: 100
          minimum: 1
          description: Max records to return (1-100).
          default: 25
          title: Limit
        description: Max records to return (1-100).
      - name: X-API-Key
        in: header
        required: true
        schema:
          type: string
          title: X-Api-Key
      responses:
        '200':
          description: Matching United States Government Domain Names records.
          content:
            application/json:
              schema: {}
              example:
                data:
                  items:
                  - domain_name: example
                    domain_type: example
                    agency: example
                    organization: example
                    city: example
                    state: example
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
  /v1/data/united-states-government-domain-names/{key}:
    get:
      tags:
      - Government Directory
      summary: Get one United States Government Domain Names record by domain_name
      description: 'Fetch a single United States Government Domain Names record by its `domain_name`.


        **Example:** `GET /v1/data/united-states-government-domain-names/example`'
      operationId: get_endpoint_v1_data_united_states_government_domain_names__key__get
      parameters:
      - name: key
        in: path
        required: true
        schema:
          type: string
          description: The domain_name value to look up (case-insensitive).
          examples:
          - example
          title: Key
        description: The domain_name value to look up (case-insensitive).
      - name: X-API-Key
        in: header
        required: true
        schema:
          type: string
          title: X-Api-Key
      responses:
        '200':
          description: A single United States Government Domain Names record.
          content:
            application/json:
              schema: {}
              example:
                data:
                  domain_name: example
                  domain_type: example
                  agency: example
                  organization: example
                  city: example
                  state: example
        '404':
          content:
            application/json:
              example:
                error:
                  code: NOT_FOUND
                  message: No United States Government Domain Names record for '...'.
          description: Not Found
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
components:
  schemas:
    ValidationError:
      properties:
        loc:
          items:
            anyOf:
            - type: string
            - type: integer
          type: array
          title: Location
        msg:
          type: string
          title: Message
        type:
          type: string
          title: Error Type
        input:
          title: Input
        ctx:
          type: object
          title: Context
      type: object
      required:
      - loc
      - msg
      - type
      title: ValidationError
    HTTPValidationError:
      properties:
        detail:
          items:
            $ref: '#/components/schemas/ValidationError'
          type: array
          title: Detail
      type: object
      title: HTTPValidationError