API v1 (Legacy)
Getting Started

Getting Started

AltIndex API v1 is a legacy, unversioned API surface running on https://api.altindex.com.

Base URL

https://api.altindex.com

Authentication

Use the apiKey (or apikey) query parameter. Query parameters are case-insensitive.

Note: X-API-Key header authentication is not currently supported by the production PHP endpoints.

curl "https://api.altindex.com/graph?apiKey=YOUR_API_KEY&symbol=TSLA"

Rate Limits

Rate limits apply per API key. If you need higher limits, visit altindex.com/contact.