---
title: "Monitor Australian racehorse material state changes over time to identify new form and readiness developments with ledge"
method: GET
path: "/api/v1/x402/horse-changes"
---

# Monitor Australian racehorse material state changes over time to identify new form and readiness developments with ledge

`GET /api/v1/x402/horse-changes`

## Request

- Base URL: `https://horsetruth.com.au`
- URL: `https://horsetruth.com.au/api/v1/x402/horse-changes`
- Auth: none declared

Monitor Australian racehorse material state changes over time to identify new form and readiness developments with ledger chronology. Accountless x402 payment, US$0.02 per successful result.

## Query parameters

- `horse` string, required: Canonical Australian racehorse name to research.

## Headers

- `PAYMENT-SIGNATURE` string

## Response `200`

Paid result.

- object
  - `data` object, required
    - `events` object[], required
      - `changes` object, required
        - `condition` string, required
      - `created_at_utc` string, required
      - `event_type` string, required
      - `id` integer, required
      - `materiality` string, required
    - `horse` string, required
  - `derived_output_only` boolean, required
  - `generated_at_utc` string, required
  - `product` string, required
  - `raw_provider_data_included` boolean, required
  - `source` string, required
  - `status` string, required
  - `version` string, required

## Other responses

- `402`: Payment required. Read the PAYMENT-REQUIRED header, sign it, send PAYMENT-SIGNATURE and retry the same request.

---

[API](https://skmtc.dev/horsetruth/apis/horse-truth-machine-intelligence-api.md) · [All operations](https://skmtc.dev/horsetruth/apis/horse-truth-machine-intelligence-api/llms.txt) · [OpenAPI document](https://skmtc.dev/horsetruth/apis/horse-truth-machine-intelligence-api/revisions/a1b08aff1814?raw)