Getting Started

AltIndex provides alternative data on ~3,000 publicly traded stocks, ETFs, and cryptocurrencies. Track social media followers, mentions, sentiment, hiring trends, web traffic, app downloads, and more, with historical time series going back 7+ years. Access the data through the REST API for programmatic integrations, or connect via MCP to query it directly from AI assistants like Claude, Cursor, and ChatGPT.

Get your API key

Keys come from the developer console (opens in a new tab) at app.altindex.com. It walks you through four steps: verify your email, choose a plan, create your key, and run your first request from the page.

Three plans are self-serve, Hobbyist, Developer and Research, and every plan includes every data family. They differ in requests per day, history window, tickers per call and MCP access; the plans table has the allowances and the developer console (opens in a new tab) has the prices. Hobbyist carries a 14-day money-back guarantee.

Enterprise access: Need higher rate limits, each dataset's full measured history, or bulk delivery? Contact our sales team (opens in a new tab) to discuss Enterprise plans. Per-dataset history start dates are published in Collection & History.

Make your first request

The console runs this request for you when you create a key. To run it yourself, put your key in the X-API-Key header:

curl -H "X-API-Key: YOUR_API_KEY" \
  "https://v2.api.altindex.com/api/score/latest?tickers=AAPL"

{
  "as_of": "2026-09-09T18:42:07Z",
  "results": [
    {
      "ticker": "AAPL",
      "date": "2026-09-08",
      "composite": 78,
      "audience": 71,
      "employment": 64,
      "customer": null,
      "fundamental": 55,
      "confidence": 82,
      "ai_price": 331.64,
      "anchor_price": 318.22
    }
  ],
  "errors": []
}

Every response carries X-RateLimit-Limit, X-RateLimit-Remaining and X-RateLimit-Reset, so a script can pace itself without a dashboard.

Explore the data

AltIndex tracks entities (companies, ETFs, crypto) and maps each one to its social media accounts across 9 platforms, with Stocktwits keyed by cashtag instead of a handle. Those mappings drive the daily follower counts; mention volumes and sentiment scores are collected by keyword and are available whether or not an entity has a handle mapped. Start with the entity endpoints to discover what's available, then pull social metrics for the tickers you care about.

Rate limits and history

Each plan sets a daily request budget, a per-minute ceiling and a history window; both budgets reset on fixed UTC windows and are shared between REST and MCP. The plans table lists every allowance. For Enterprise limits, contact sales (opens in a new tab).

Next steps

REST API Reference: Authentication, scopes, error handling, and endpoint details
MCP: Connect AltIndex to Claude, Cursor, or ChatGPT for AI-powered research
Data Dictionary: Field definitions, platform coverage, and collection methodology

Getting Started