> ## Documentation Index
> Fetch the complete documentation index at: https://docs.signalark.app/llms.txt
> Use this file to discover all available pages before exploring further.

# External Ingestion (Partners)

> Guide for external partners to push signals into the SignalArk pipeline.

SignalArk accepts external signals from certified data partners (such as Flint) via our dedicated ingestion APIs.

## Authentication

External ingestion uses API Key authentication.
Include your API key in the `Authorization` header: