Computational APIs•Longitudinal Intelligence

Longitudinal Trajectory & Signals

AION measures what changed over time across national discourse. Unlike ephemeral web search, the substrate continuously calculates topic emergence velocity, declining trends, and deviations from historical 90-day baselines.

GET

/v1/changes

Topic Emergence & Trajectory

Retrieves emerging vs declining topics, significant events, and detected signals over a specified temporal window (default: 30 days).

Query Parameters

domain: education | economy | health | politics | governance

days: integer (e.g. 7, 30, 90)

threshold: float (minimum z-score velocity, default: 1.5)

Sample Response Payload

{
  "domain": "education",
  "windowDays": 30,
  "emergingTopics": [
    {
      "topic": "Tertiary Student Loans (NELFUND)",
      "velocity": "+184.2%",
      "zScore": 3.4,
      "inflectionDate": "2026-09-02T10:00:00Z"
    },
    {
      "topic": "Basic Education Curriculum Reform",
      "velocity": "+62.0%",
      "zScore": 2.1
    }
  ],
  "decliningTopics": [
    {
      "topic": "Secondary Examination Postponement",
      "velocity": "-74.5%",
      "zScore": -2.8
    }
  ],
  "signals": [
    {
      "id": "sig_910a",
      "type": "coverage_surge",
      "metric": "gazette_citations",
      "delta": "+310%"
    }
  ]
}

GET

/v1/signals

Statistical Deltas & Anomalies

Interrogates computed statistical anomalies across entities, ministries, and policies. Used by algorithmic risk systems and hedge funds to detect early shifts in regulatory sentiment.

curl -H "X-AION-Key: aion_live_..." \
  "https://api.aion.ng/v1/signals?entity=central_bank_of_nigeria&window=90d"

Next Module

Authentication, Keys & Enterprise Quotas

View Auth Spec →