Aletheia

Insider trading data, earnings call analysis, financial statements, and more

FinanceAuth: API KeyHTTPS: YesCORS: yesStatus: alive

Last verified: April 1, 2026

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Getting Started

This API requires an API key for authentication. Here's how to get started:

Sign up — Visit the API's website and create a free account.
Get your key — After signing up, you'll receive a unique API key (usually found in your dashboard or account settings).
Include it in requests — Add your API key to each request, typically as a query parameter (?api_key=YOUR_KEY) or in the request header (Authorization: Bearer YOUR_KEY). Check the API's documentation for the exact format.

API keys are free for most public APIs. They're used to identify your application and enforce rate limits — not to charge you.

CORS Support

This API supports CORS (Cross-Origin Resource Sharing), meaning you can call it directly from browser-based JavaScript applications without running into cross-origin errors.

Quick Example

// Using cURL
curl -H "Authorization: Bearer YOUR_API_KEY" https://aletheiaapi.com/

// Using JavaScript fetch()
const response = await fetch(apiUrl, {
  headers: { 'Authorization': 'Bearer YOUR_API_KEY' }
});
const data = await response.json();

About Aletheia

Aletheia is a free API in the Finance category. It requires a free API key, which you can obtain by signing up on their website. This API supports HTTPS for secure connections and supports CORS, making it suitable for direct browser-based requests.

Frequently Asked Questions

What financial data can I access through Aletheia?

Aletheia is a finance API that may provide data such as stock prices, exchange rates, market indices, cryptocurrency values, or economic indicators. The specific data depends on the API's focus area. Review the endpoint documentation to see which financial instruments and data points are covered.

Does Aletheia provide real-time market data?

Real-time data availability varies across finance APIs. Some provide live streaming prices, others offer data with a 15-minute delay (common for free tiers), and some focus on end-of-day summaries. Check Aletheia's documentation to confirm the data latency and whether real-time feeds are available on the free plan.

Can I use Aletheia to track cryptocurrency prices?

Whether Aletheia covers cryptocurrency depends on its specific focus. Some finance APIs specialize in crypto, others cover traditional markets, and some handle both. Visit the API documentation to see if crypto endpoints are available. You can also browse our Finance APIs for other options that may cover digital assets.

Is Aletheia free to use?

Yes, Aletheia is listed as a free public API. You will need to create a free account to get an API key, but the key itself is free. Some APIs have rate limits on their free tier, so check the official documentation for current limits.

Is Aletheia still working in 2026?

Yes! According to our most recent health check (Aletheia's last ping: 2026-04-01 13:39:46), this API is responding normally. We periodically verify all listed APIs to ensure they are still online and functioning.