Dify API Keys Grant Application Access, Not Full Workspace Control

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Dify's API reference tells developers to send an application API key as a Bearer token and to keep it on the server rather than in client code. A ZoomEye count-only query on 2026-11-05 returned 12,968 matches for app="Dify", a figure that measures visible application surfaces rather than exposed or vulnerable deployments. The guidance stresses that each key should be tied to one application and limited to its needed operations, since keys do not carry console or administrative privileges. Recommended practices include storing keys in secret managers, masking them in logs, revoking any key found in a support bundle, and separately reviewing public embeds and the tools and data sources they can reach. Self-hosted operators are also advised that the API key does not protect database, cache, vector store, or model-provider credentials, which need their own network restrictions and monitoring.

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