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API keys let you connect to Aion from tools outside the web app, such as API clients, scripts, or local development environments. Aion API Keys page

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Creating an API key

In the Aion app, open your user menu and choose API Keys. Create a new key from that page, then copy it when it is shown. For your security, you may not be able to view the full key again later.

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What an API key can access

An API key acts as you. It inherits your user permissions, so it can access the same Aion resources that your account can access. However, only certain Aion services allow bearer-token authentication:
  • Call model endpoints from external clients
  • Invoke Aion-hosted or proxied MCP servers
  • Send authenticated A2A requests to agents
Keep API keys private. If a key is exposed or no longer needed, revoke it from the API Keys page.