diff --git a/chat/v1/IDS.md b/chat/v1/IDS.md
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+# Chat service IDs
+
+# Guild ID
+
+A `uint64` ID. Represents a *Guild*. This should be *unique* in a server.
+
+# Channel ID
+
+A `uint64` ID. Represents a *Channel*. This should be *unique* in the context of a *Guild*.
+
+# Message ID
+
+A `uint64` ID. Represents a *Message*. This should be *unique* in the context of a *Channel*.
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