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API Documentation

Real-time provider recommendations via programmatic API access.

What is the API?

The IsItDown.ai API provides real-time provider recommendations and status data via programmatic access. Query uptime, latency, and cost information for all monitored LLM providers.

Perfect for: Building provider-aware applications, automating failover logic, cost optimization, and reliability dashboards.

Authentication

All requests require your API key in the Authorization header:

Authorization: Bearer sk_isitdown_xxxxx

Copy your key from your Pro dashboard. Do not share it publicly.

Rate Limits

Pro Plan

30,000

calls per month

~1,000/day or ~42/hour

Resets

Monthly

1st of each month (UTC)

View usage in Pro dashboard

Getting Started

  1. 1Subscribe to Pro plan ($29/month)
  2. 2Go to Pro dashboard → API Keys
  3. 3Generate your API key (copy it immediately)
  4. 4Use it in your app: Authorization: Bearer sk_isitdown_xxxxx
  5. 5Monitor usage in Pro dashboard