---
title: "Signal Fusion Detection"
method: POST
path: "/signals/detect"
tags: ["Market Intelligence"]
---

# Signal Fusion Detection

`POST /signals/detect`

## Request

- Base URL: `https://nzxplorer.co.nz/api/v1`
- URL: `https://nzxplorer.co.nz/api/v1/signals/detect`
- Auth: one of:
  - API key in header `X-API-Key`
  - API key in query parameter `api_key`

Detect composite multi-signal anomalies across all NZX issuers. Identifies 12 patterns: insider selling + earnings miss, director exodus, governance deterioration, dividend at risk, auditor red flag, CEO+CFO double departure, capital raise dilution, insider buying spree, earnings tone shift, multi-signal stress, sentiment divergence, and sentiment cluster. Returns detected composite signals sorted by severity. Composite signals are also included in webhook alert dispatch (signal type: composite_signal).

## Request body

- object
  - `lookback` number: Days to look back for signal detection (default: 90)

## Response `200`

Signal Fusion Detection

- Envelope: Standard API response envelope
  - `data` unknown
  - `meta` object
    - `api_version` string
    - `timestamp` string, date-time
    - `format` 'standard' | 'llm' | 'fdc3' | 'toon'
    - `endpoint` string

## Other responses

- `401`: Missing or invalid API key
- `429`: Rate limit exceeded
- `500`: Internal server error

---

[API](https://skmtc.dev/nzxplorer/apis/nzxplorer-api.md) · [All operations](https://skmtc.dev/nzxplorer/apis/nzxplorer-api/llms.txt) · [OpenAPI document](https://skmtc.dev/nzxplorer/apis/nzxplorer-api/revisions/f3b95341783a?raw)