Event subscriptions (3)

Last updated Apr 21, 2026 allow you to receive messages when events occur across your Cloudflare account. Cloudflare products (e.g., KV, Workers AI, Workers) can publish structured events to a queue, which you can then consume with Workers or HTTP pull consumers to build custom workflows, integrations, or logic.

For more information on Event Subscriptions, refer to the management guide.

Available KV events

namespace.created

Triggered when a namespace is created.

Example:

{
  "type": "cf.kv.namespace.created",
  "source": {
    "type": "kv"
  },
  "payload": {
    "id": "ns-12345678-90ab-cdef-1234-567890abcdef",
    "name": "my-kv-namespace"
  },
  "metadata": {
    "accountId": "f9f79265f388666de8122cfb508d7776",
    "eventSubscriptionId": "1830c4bb612e43c3af7f4cada31fbf3f",
    "eventSchemaVersion": 1,
    "eventTimestamp": "2025-05-01T02:48:57.132Z"
  }
}

namespace.deleted

Triggered when a namespace is deleted.

Example:

{
  "type": "cf.kv.namespace.deleted",
  "source": {
    "type": "kv"
  },
  "payload": {
    "id": "ns-12345678-90ab-cdef-1234-567890abcdef",
    "name": "my-kv-namespace"
  },
  "metadata": {
    "accountId": "f9f79265f388666de8122cfb508d7776",
    "eventSubscriptionId": "1830c4bb612e43c3af7f4cada31fbf3f",
    "eventSchemaVersion": 1,
    "eventTimestamp": "2025-05-01T02:48:57.132Z"
  }
}

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description: Workers KV account and namespace limits for reads, writes, key size, value size, and storage. title: Limits image: https://developers.cloudflare.com/kv/platform/limits/og.png?v=f508c13418e4ae1b

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