Events & schemas

This page provides a comprehensive reference of available event sources and their corresponding events with schemas for event subscriptions. All events include common metadata fields and follow a consistent structure.

Sources

Access

application.created

Triggered when an application is created.

Example:

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

application.deleted

Triggered when an application is deleted.

Example:

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

Artifacts

Account-level events — Subscribe to the artifacts source to receive events for any repository in your account.

repo.created

Triggered when a repository is created.

Example:

{
  "type": "cf.artifacts.repo.created",
  "source": {
    "type": "artifacts",
    "namespace": "my-namespace",
    "repoName": "my-repo"
  },
  "payload": {
    "repoId": "0tvugavnogssnwzk",
    "defaultBranch": "main",
    "description": "My Artifacts repository",
    "readOnly": false,
    "createdAt": "2026-05-18T15:53:46.833Z",
    "updatedAt": "2026-05-18T15:53:46.833Z",
    "lastPushAt": null
  },
  "metadata": {
    "accountId": "f9f79265f388666de8122cfb508d7776",
    "eventSubscriptionId": "1830c4bb612e43c3af7f4cada31fbf3f",
    "eventSchemaVersion": 1,
    "eventTimestamp": "2026-05-18T15:53:48.187Z"
  }
}

repo.deleted

Triggered when a repository is deleted.

Example:

{
  "type": "cf.artifacts.repo.deleted",
  "source": {
    "type": "artifacts",
    "namespace": "my-namespace",
    "repoName": "my-repo"
  },
  "payload": {
    "repoId": "0tvugavnogssnwzk",
    "defaultBranch": "main",
    "description": "My Artifacts repository",
    "readOnly": false,
    "createdAt": "2026-05-18T15:53:46.833Z",
    "updatedAt": "2026-05-18T15:53:46.833Z",
    "lastPushAt": null
  },
  "metadata": {
    "accountId": "f9f79265f388666de8122cfb508d7776",
    "eventSubscriptionId": "1830c4bb612e43c3af7f4cada31fbf3f",
    "eventSchemaVersion": 1,
    "eventTimestamp": "2026-05-18T15:53:59.914Z"
  }
}

repo.forked

Triggered when a repository is forked.

Example:

{
  "type": "cf.artifacts.repo.forked",
  "source": {
    "type": "artifacts",
    "namespace": "source-namespace",
    "repoName": "source-repo"
  },
  "payload": {
    "namespace": "target-namespace",
    "repoName": "target-repo",
    "repoId": "5ankv1vhl4xnw7wq",
    "defaultBranch": "main",
    "description": "Fork of source-repo",
    "readOnly": false,
    "createdAt": "2026-05-18T15:53:52.384Z",
    "updatedAt": "2026-05-18T15:53:54.579Z",
    "lastPushAt": null
  },
  "metadata": {
    "accountId": "f9f79265f388666de8122cfb508d7776",
    "eventSubscriptionId": "1830c4bb612e43c3af7f4cada31fbf3f",
    "eventSchemaVersion": 1,
    "eventTimestamp": "2026-05-18T15:53:54.641Z"
  }
}

repo.imported

Triggered when a repository is imported from an external Git remote.

Example:

{
  "type": "cf.artifacts.repo.imported",
  "source": {
    "type": "artifacts",
    "namespace": "my-namespace",
    "repoName": "my-repo"
  },
  "payload": {
    "repoId": "d7nd72k964cv9kub",
    "defaultBranch": "main",
    "description": null,
    "readOnly": false,
    "createdAt": "2026-05-18T15:53:54.864Z",
    "updatedAt": "2026-05-18T15:53:57.737Z",
    "lastPushAt": null,
    "sourceUrl": "https://github.com/example/repo.git",
    "branch": "main"
  },
  "metadata": {
    "accountId": "f9f79265f388666de8122cfb508d7776",
    "eventSubscriptionId": "1830c4bb612e43c3af7f4cada31fbf3f",
    "eventSchemaVersion": 1,
    "eventTimestamp": "2026-05-18T15:53:58.195Z"
  }
}

Repository-level events — Subscribe to the artifacts.repo source with a namespace and repo_name to receive events scoped to a single repository.

pushed

Triggered when commits are pushed to a repository.

Example:

{
  "type": "cf.artifacts.repo.pushed",
  "source": {
    "type": "artifacts.repo",
    "namespace": "my-namespace",
    "repoName": "my-repo"
  },
  "payload": {
    "ref": "refs/heads/main",
    "before": "abc123def456abc123def456abc123def456abc1",
    "after": "def789ghi012def789ghi012def789ghi012def7",
    "commits": [
      {
        "id": "def789ghi012def789ghi012def789ghi012def7",
        "message": "Fix bug in authentication",
        "messageTruncated": false,
        "timestamp": "2025-05-01T02:48:57.000Z",
        "author": {
          "name": "Developer Name",
          "email": "developer@example.com"
        },
        "committer": {
          "name": "Developer Name",
          "email": "developer@example.com"
        },
        "parents": [
          "abc123def456abc123def456abc123def456abc1"
        ]
      }
    ],
    "totalCommitsCount": 1,
    "commitsTruncated": false
  },
  "metadata": {
    "accountId": "f9f79265f388666de8122cfb508d7776",
    "eventSubscriptionId": "1830c4bb612e43c3af7f4cada31fbf3f",
    "eventSchemaVersion": 1,
    "eventTimestamp": "2025-05-01T02:48:57.132Z"
  }
}

cloned

Triggered when a repository is cloned.

Example:

{
  "type": "cf.artifacts.repo.cloned",
  "source": {
    "type": "artifacts.repo",
    "namespace": "my-namespace",
    "repoName": "my-repo"
  },
  "payload": {},
  "metadata": {
    "accountId": "f9f79265f388666de8122cfb508d7776",
    "eventSubscriptionId": "0ab4c7b45a39491ba5da2973f3d093a6",
    "eventSchemaVersion": 1,
    "eventTimestamp": "2026-05-18T15:53:51.358Z"
  }
}

fetched

Triggered when updates are fetched from a repository.

Example:

{
  "type": "cf.artifacts.repo.fetched",
  "source": {
    "type": "artifacts.repo",
    "namespace": "my-namespace",
    "repoName": "my-repo"
  },
  "payload": {},
  "metadata": {
    "accountId": "f9f79265f388666de8122cfb508d7776",
    "eventSubscriptionId": "0ab4c7b45a39491ba5da2973f3d093a6",
    "eventSchemaVersion": 1,
    "eventTimestamp": "2026-05-18T15:53:51.358Z"
  }
}

token.created

Triggered when a repo-scoped token is created. Includes the token ID, scope, and expiration time.

Example:

{
  "type": "cf.artifacts.repo.token.created",
  "source": {
    "type": "artifacts.repo",
    "namespace": "default",
    "repoName": "token-evt-repo"
  },
  "payload": {
    "tokenId": "7ngdf3ww3u84t33x",
    "scope": "read",
    "expiresAt": "2026-05-20T16:58:14.548Z"
  },
  "metadata": {
    "accountId": "f9f79265f388666de8122cfb508d7776",
    "eventSubscriptionId": "0ab4c7b45a39491ba5da2973f3d093a6",
    "eventSchemaVersion": 1,
    "eventTimestamp": "2026-05-20T16:58:14.548Z"
  }
}

token.revoked

Triggered when a repo-scoped token is revoked. Includes the token ID.

Example:

{
  "type": "cf.artifacts.repo.token.revoked",
  "source": {
    "type": "artifacts.repo",
    "namespace": "default",
    "repoName": "token-evt-repo"
  },
  "payload": {
    "tokenId": "7ngdf3ww3u84t33x"
  },
  "metadata": {
    "accountId": "f9f79265f388666de8122cfb508d7776",
    "eventSubscriptionId": "0ab4c7b45a39491ba5da2973f3d093a6",
    "eventSchemaVersion": 1,
    "eventTimestamp": "2026-05-20T16:58:14.548Z"
  }
}

Email Sending

Email Sending event subscriptions publish outbound transactional email lifecycle events for messages sent from an enabled sending domain. Each subscription is scoped to one sending domain: either the zone apex, such as example.com, or a verified sending subdomain, such as send.example.com.

Email Routing events, including inbound forwards, replies, Worker-emitted routing events, and deliveries to verified routing recipients, are not published as Email Sending events.

message.delivered

Triggered when the recipient mail server accepts the message.

Example:

{
  "type": "cf.email.sending.message.delivered",
  "source": {
    "type": "email.sending",
    "zoneId": "023e105f4ecef8ad9ca31a8372d0c353",
    "domain": "example.com"
  },
  "payload": {
    "eventId": "0190d0c4-7e9a-7b3c-9f12-1a2b3c4d5e6f",
    "messageId": "0101018f7d0c4d9a-msg-deadbeef",
    "sender": "noreply@example.com",
    "recipient": "user@example.net",
    "subject": "Welcome",
    "terminal": true,
    "delivery": {
      "status": "delivered",
      "provider": "gmail",
      "deliveryTimeMs": 1234,
      "smtpStatusCode": "250",
      "smtpEnhancedStatusCode": "2.0.0",
      "smtpResponse": "250 2.0.0 OK 1714820445 a1b2c3 - gsmtp"
    }
  },
  "metadata": {
    "accountId": "f9f79265f388666de8122cfb508d7776",
    "eventSubscriptionId": "1830c4bb612e43c3af7f4cada31fbf3f",
    "eventSchemaVersion": 1,
    "eventTimestamp": "2026-06-01T02:48:57.132Z"
  }
}

message.deferred

Triggered when a temporary delivery failure occurs and delivery retries are still pending.

Example:

{
  "type": "cf.email.sending.message.deferred",
  "source": {
    "type": "email.sending",
    "zoneId": "023e105f4ecef8ad9ca31a8372d0c353",
    "domain": "send.example.com"
  },
  "payload": {
    "eventId": "0190d0c4-7e9b-7714-9004-11f0b6d9a341",
    "messageId": "0101018f7d0c4d9a-msg-deferred",
    "sender": "receipts@send.example.com",
    "recipient": "user@example.net",
    "subject": "Your receipt",
    "terminal": false,
    "delivery": {
      "status": "deferred",
      "provider": "external_smtp",
      "deliveryTimeMs": 2143,
      "smtpStatusCode": "451",
      "smtpEnhancedStatusCode": "4.2.0",
      "smtpResponse": "451 4.2.0 Temporary mailbox error"
    },
    "bounce": {
      "type": "soft",
      "classification": "temporary_failure",
      "reason": "451 4.2.0 Temporary mailbox error"
    }
  },
  "metadata": {
    "accountId": "f9f79265f388666de8122cfb508d7776",
    "eventSubscriptionId": "1830c4bb612e43c3af7f4cada31fbf3f",
    "eventSchemaVersion": 1,
    "eventTimestamp": "2026-06-01T02:48:57.132Z"
  }
}

message.bounced

Triggered when a permanent bounce occurs, or when temporary delivery retries are exhausted.

Example:

{
  "type": "cf.email.sending.message.bounced",
  "source": {
    "type": "email.sending",
    "zoneId": "023e105f4ecef8ad9ca31a8372d0c353",
    "domain": "send.example.com"
  },
  "payload": {
    "eventId": "0190d0c4-7ea1-7af2-8b88-c1d2e3f4a5b6",
    "messageId": "0101018f7d0c4d9a-msg-bounced",
    "sender": "receipts@send.example.com",
    "recipient": "user@example.net",
    "subject": "Your receipt",
    "terminal": true,
    "delivery": {
      "status": "bounced",
      "provider": "external_smtp",
      "deliveryTimeMs": 2143,
      "smtpStatusCode": "550",
      "smtpEnhancedStatusCode": "5.1.1",
      "smtpResponse": "550 5.1.1 User unknown"
    },
    "bounce": {
      "type": "hard",
      "classification": "permanent_failure",
      "reason": "550 5.1.1 User unknown"
    }
  },
  "metadata": {
    "accountId": "f9f79265f388666de8122cfb508d7776",
    "eventSubscriptionId": "1830c4bb612e43c3af7f4cada31fbf3f",
    "eventSchemaVersion": 1,
    "eventTimestamp": "2026-06-01T02:48:57.132Z"
  }
}

message.failed

Triggered when an internal or non-SMTP delivery error occurs.

Example:

{
  "type": "cf.email.sending.message.failed",
  "source": {
    "type": "email.sending",
    "zoneId": "023e105f4ecef8ad9ca31a8372d0c353",
    "domain": "example.com"
  },
  "payload": {
    "eventId": "0190d0c4-81c1-7bc6-9344-829cd9001a12",
    "messageId": "0101018f7d0c4d9a-msg-failed",
    "sender": "noreply@example.com",
    "recipient": "user@example.net",
    "subject": "Welcome",
    "terminal": true,
    "delivery": {
      "status": "failed"
    },
    "failure": {
      "reason": "delivery_failed"
    }
  },
  "metadata": {
    "accountId": "f9f79265f388666de8122cfb508d7776",
    "eventSubscriptionId": "1830c4bb612e43c3af7f4cada31fbf3f",
    "eventSchemaVersion": 1,
    "eventTimestamp": "2026-06-01T02:48:57.132Z"
  }
}

message.rejected

Triggered when the message is rejected before delivery by policy, including suppression, validation rejection, or spam rejection.

Example:

{
  "type": "cf.email.sending.message.rejected",
  "source": {
    "type": "email.sending",
    "zoneId": "023e105f4ecef8ad9ca31a8372d0c353",
    "domain": "example.com"
  },
  "payload": {
    "eventId": "0190d0c4-830a-77e5-8fa0-8d10f4e8dc8b",
    "messageId": "0101018f7d0c4d9a-msg-rejected",
    "sender": "noreply@example.com",
    "recipient": "user@example.net",
    "subject": "Welcome",
    "terminal": true,
    "delivery": {
      "status": "rejected"
    },
    "rejection": {
      "reason": "suppressed",
      "party": "recipient",
      "detail": "Recipient is suppressed"
    }
  },
  "metadata": {
    "accountId": "f9f79265f388666de8122cfb508d7776",
    "eventSubscriptionId": "1830c4bb612e43c3af7f4cada31fbf3f",
    "eventSchemaVersion": 1,
    "eventTimestamp": "2026-06-01T02:48:57.132Z"
  }
}

message.complained

Triggered when a delivered message is marked as spam by the recipient through a feedback loop.

Example:

{
  "type": "cf.email.sending.message.complained",
  "source": {
    "type": "email.sending",
    "zoneId": "023e105f4ecef8ad9ca31a8372d0c353",
    "domain": "send.example.com"
  },
  "payload": {
    "eventId": "0190d0c4-9f01-7c44-b2a1-aabbccddeeff",
    "messageId": "0101018f7d0c4d9a-msg-complained",
    "sender": "news@send.example.com",
    "recipient": "user@example.net",
    "terminal": true,
    "delivery": {
      "status": "complained"
    },
    "complaint": {
      "type": "abuse"
    }
  },
  "metadata": {
    "accountId": "f9f79265f388666de8122cfb508d7776",
    "eventSubscriptionId": "1830c4bb612e43c3af7f4cada31fbf3f",
    "eventSchemaVersion": 1,
    "eventTimestamp": "2026-06-01T02:48:57.132Z"
  }
}

R2

bucket.created

Triggered when a bucket is created.

Example:

{
  "type": "cf.r2.bucket.created",
  "source": {
    "type": "r2"
  },
  "payload": {
    "name": "my-bucket",
    "jurisdiction": "default",
    "location": "WNAM",
    "storageClass": "Standard"
  },
  "metadata": {
    "accountId": "f9f79265f388666de8122cfb508d7776",
    "eventSubscriptionId": "1830c4bb612e43c3af7f4cada31fbf3f",
    "eventSchemaVersion": 1,
    "eventTimestamp": "2025-05-01T02:48:57.132Z"
  }
}

bucket.deleted

Triggered when a bucket is deleted.

Example:

{
  "type": "cf.r2.bucket.deleted",
  "source": {
    "type": "r2"
  },
  "payload": {
    "name": "my-bucket",
    "jurisdiction": "default"
  },
  "metadata": {
    "accountId": "f9f79265f388666de8122cfb508d7776",
    "eventSubscriptionId": "1830c4bb612e43c3af7f4cada31fbf3f",
    "eventSchemaVersion": 1,
    "eventTimestamp": "2025-05-01T02:48:57.132Z"
  }
}

Super Slurper

job.started

Triggered when a migration job starts.

Example:

{
  "type": "cf.superSlurper.job.started",
  "source": {
    "type": "superSlurper"
  },
  "payload": {
    "id": "job-12345678-90ab-cdef-1234-567890abcdef",
    "createdAt": "2025-05-01T02:48:57.132Z",
    "overwrite": true,
    "pathPrefix": "migrations/",
    "source": {
      "provider": "s3",
      "bucket": "source-bucket",
      "region": "us-east-1",
      "endpoint": "s3.amazonaws.com"
    },
    "destination": {
      "provider": "r2",
      "bucket": "destination-bucket",
      "jurisdiction": "default"
    }
  },
  "metadata": {
    "accountId": "f9f79265f388666de8122cfb508d7776",
    "eventSubscriptionId": "1830c4bb612e43c3af7f4cada31fbf3f",
    "eventSchemaVersion": 1,
    "eventTimestamp": "2025-05-01T02:48:57.132Z"
  }
}

job.paused

Triggered when a migration job pauses.

Example:

{
  "type": "cf.superSlurper.job.paused",
  "source": {
    "type": "superSlurper"
  },
  "payload": {
    "id": "job-12345678-90ab-cdef-1234-567890abcdef"
  },
  "metadata": {
    "accountId": "f9f79265f388666de8122cfb508d7776",
    "eventSubscriptionId": "1830c4bb612e43c3af7f4cada31fbf3f",
    "eventSchemaVersion": 1,
    "eventTimestamp": "2025-05-01T02:48:57.132Z"
  }
}

job.resumed

Triggered when a migration job resumes.

Example:

{
  "type": "cf.superSlurper.job.resumed",
  "source": {
    "type": "superSlurper"
  },
  "payload": {
    "id": "job-12345678-90ab-cdef-1234-567890abcdef"
  },
  "metadata": {
    "accountId": "f9f79265f388666de8122cfb508d7776",
    "eventSubscriptionId": "1830c4bb612e43c3af7f4cada31fbf3f",
    "eventSchemaVersion": 1,
    "eventTimestamp": "2025-05-01T02:48:57.132Z"
  }
}

job.completed

Triggered when a migration job finishes.

Example:

{
  "type": "cf.superSlurper.job.completed",
  "source": {
    "type": "superSlurper"
  },
  "payload": {
    "id": "job-12345678-90ab-cdef-1234-567890abcdef",
    "totalObjectsCount": 1000,
    "skippedObjectsCount": 10,
    "migratedObjectsCount": 980,
    "failedObjectsCount": 10
  },
  "metadata": {
    "accountId": "f9f79265f388666de8122cfb508d7776",
    "eventSubscriptionId": "1830c4bb612e43c3af7f4cada31fbf3f",
    "eventSchemaVersion": 1,
    "eventTimestamp": "2025-05-01T02:48:57.132Z"
  }
}

job.aborted

Triggered when a migration job is manually aborted.

Example:

{
  "type": "cf.superSlurper.job.aborted",
  "source": {
    "type": "superSlurper"
  },
  "payload": {
    "id": "job-12345678-90ab-cdef-1234-567890abcdef",
    "totalObjectsCount": 1000,
    "skippedObjectsCount": 100,
    "migratedObjectsCount": 500,
    "failedObjectsCount": 50
  },
  "metadata": {
    "accountId": "f9f79265f388666de8122cfb508d7776",
    "eventSubscriptionId": "1830c4bb612e43c3af7f4cada31fbf3f",
    "eventSchemaVersion": 1,
    "eventTimestamp": "2025-05-01T02:48:57.132Z"
  }
}

job.object.migrated

Triggered when an object is migrated.

Example:

{
  "type": "cf.superSlurper.job.object.migrated",
  "source": {
    "type": "superSlurper.job",
    "jobId": "job-12345678-90ab-cdef-1234-567890abcdef"
  },
  "payload": {
    "key": "migrations/file.txt"
  },
  "metadata": {
    "accountId": "f9f79265f388666de8122cfb508d7776",
    "eventSubscriptionId": "1830c4bb612e43c3af7f4cada31fbf3f",
    "eventSchemaVersion": 1,
    "eventTimestamp": "2025-05-01T02:48:57.132Z"
  }
}

Vectorize

index.created

Triggered when an index is created.

Example:

{
  "type": "cf.vectorize.index.created",
  "source": {
    "type": "vectorize"
  },
  "payload": {
    "name": "my-vector-index",
    "description": "Index for embeddings",
    "createdAt": "2025-05-01T02:48:57.132Z",
    "modifiedAt": "2025-05-01T02:48:57.132Z",
    "dimensions": 1536,
    "metric": "cosine"
  },
  "metadata": {
    "accountId": "f9f79265f388666de8122cfb508d7776",
    "eventSubscriptionId": "1830c4bb612e43c3af7f4cada31fbf3f",
    "eventSchemaVersion": 1,
    "eventTimestamp": "2025-05-01T02:48:57.132Z"
  }
}

index.deleted

Triggered when an index is deleted.

Example:

{
  "type": "cf.vectorize.index.deleted",
  "source": {
    "type": "vectorize"
  },
  "payload": {
    "name": "my-vector-index"
  },
  "metadata": {
    "accountId": "f9f79265f388666de8122cfb508d7776",
    "eventSubscriptionId": "1830c4bb612e43c3af7f4cada31fbf3f",
    "eventSchemaVersion": 1,
    "eventTimestamp": "2025-05-01T02:48:57.132Z"
  }
}

Workers AI

batch.queued

Triggered when a batch request is queued.

Example:

{
  "type": "cf.workersAi.model.batch.queued",
  "source": {
    "type": "workersAi.model",
    "modelName": "@cf/baai/bge-base-en-v1.5"
  },
  "payload": {
    "requestId": "req-12345678-90ab-cdef-1234-567890abcdef"
  },
  "metadata": {
    "accountId": "f9f79265f388666de8122cfb508d7776",
    "eventSubscriptionId": "1830c4bb612e43c3af7f4cada31fbf3f",
    "eventSchemaVersion": 1,
    "eventTimestamp": "2025-05-01T02:48:57.132Z"
  }
}

batch.succeeded

Triggered when a batch request has completed.

Example:

{
  "type": "cf.workersAi.model.batch.succeeded",
  "source": {
    "type": "workersAi.model",
    "modelName": "@cf/baai/bge-base-en-v1.5"
  },
  "payload": {
    "requestId": "req-12345678-90ab-cdef-1234-567890abcdef"
  },
  "metadata": {
    "accountId": "f9f79265f388666de8122cfb508d7776",
    "eventSubscriptionId": "1830c4bb612e43c3af7f4cada31fbf3f",
    "eventSchemaVersion": 1,
    "eventTimestamp": "2025-05-01T02:48:57.132Z"
  }
}

batch.failed

Triggered when a batch request has failed.

Example:

{
  "type": "cf.workersAi.model.batch.failed",
  "source": {
    "type": "workersAi.model",
    "modelName": "@cf/baai/bge-base-en-v1.5"
  },
  "payload": {
    "requestId": "req-12345678-90ab-cdef-1234-567890abcdef",
    "message": "Model execution failed",
    "internalCode": 5001,
    "httpCode": 500
  },
  "metadata": {
    "accountId": "f9f79265f388666de8122cfb508d7776",
    "eventSubscriptionId": "1830c4bb612e43c3af7f4cada31fbf3f",
    "eventSchemaVersion": 1,
    "eventTimestamp": "2025-05-01T02:48:57.132Z"
  }
}

Workers Builds

build.started

Triggered when a build starts.

Example:

{
  "type": "cf.workersBuilds.worker.build.started",
  "source": {
    "type": "workersBuilds.worker",
    "workerName": "my-worker"
  },
  "payload": {
    "buildUuid": "build-12345678-90ab-cdef-1234-567890abcdef",
    "status": "running",
    "buildOutcome": null,
    "createdAt": "2025-05-01T02:48:57.132Z",
    "initializingAt": "2025-05-01T02:48:58.132Z",
    "runningAt": "2025-05-01T02:48:59.132Z",
    "stoppedAt": null,
    "buildTriggerMetadata": {
      "buildTriggerSource": "push_event",
      "branch": "main",
      "commitHash": "abc123def456",
      "commitMessage": "Fix bug in authentication",
      "author": "developer@example.com",
      "buildCommand": "npm run build",
      "deployCommand": "wrangler deploy",
      "rootDirectory": "/",
      "repoName": "my-worker-repo",
      "providerAccountName": "github-user",
      "providerType": "github"
    }
  },
  "metadata": {
    "accountId": "f9f79265f388666de8122cfb508d7776",
    "eventSubscriptionId": "1830c4bb612e43c3af7f4cada31fbf3f",
    "eventSchemaVersion": 1,
    "eventTimestamp": "2025-05-01T02:48:57.132Z"
  }
}

build.failed

Triggered when a build fails.

Example:

{
  "type": "cf.workersBuilds.worker.build.failed",
  "source": {
    "type": "workersBuilds.worker",
    "workerName": "my-worker"
  },
  "payload": {
    "buildUuid": "build-12345678-90ab-cdef-1234-567890abcdef",
    "status": "failed",
    "buildOutcome": "failure",
    "createdAt": "2025-05-01T02:48:57.132Z",
    "initializingAt": "2025-05-01T02:48:58.132Z",
    "runningAt": "2025-05-01T02:48:59.132Z",
    "stoppedAt": "2025-05-01T02:50:00.132Z",
    "buildTriggerMetadata": {
      "buildTriggerSource": "push_event",
      "branch": "main",
      "commitHash": "abc123def456",
      "commitMessage": "Fix bug in authentication",
      "author": "developer@example.com",
      "buildCommand": "npm run build",
      "deployCommand": "wrangler deploy",
      "rootDirectory": "/",
      "repoName": "my-worker-repo",
      "providerAccountName": "github-user",
      "providerType": "github"
    }
  },
  "metadata": {
    "accountId": "f9f79265f388666de8122cfb508d7776",
    "eventSubscriptionId": "1830c4bb612e43c3af7f4cada31fbf3f",
    "eventSchemaVersion": 1,
    "eventTimestamp": "2025-05-01T02:48:57.132Z"
  }
}

build.canceled

Triggered when a build is canceled.

Example:

{
  "type": "cf.workersBuilds.worker.build.canceled",
  "source": {
    "type": "workersBuilds.worker",
    "workerName": "my-worker"
  },
  "payload": {
    "buildUuid": "build-12345678-90ab-cdef-1234-567890abcdef",
    "status": "canceled",
    "buildOutcome": "canceled",
    "createdAt": "2025-05-01T02:48:57.132Z",
    "initializingAt": "2025-05-01T02:48:58.132Z",
    "runningAt": "2025-05-01T02:48:59.132Z",
    "stoppedAt": "2025-05-01T02:49:30.132Z",
    "buildTriggerMetadata": {
      "buildTriggerSource": "push_event",
      "branch": "main",
      "commitHash": "abc123def456",
      "commitMessage": "Fix bug in authentication",
      "author": "developer@example.com",
      "buildCommand": "npm run build",
      "deployCommand": "wrangler deploy",
      "rootDirectory": "/",
      "repoName": "my-worker-repo",
      "providerAccountName": "github-user",
      "providerType": "github"
    }
  },
  "metadata": {
    "accountId": "f9f79265f388666de8122cfb508d7776",
    "eventSubscriptionId": "1830c4bb612e43c3af7f4cada31fbf3f",
    "eventSchemaVersion": 1,
    "eventTimestamp": "2025-05-01T02:48:57.132Z"
  }
}

build.succeeded

Triggered when a build succeeds.

Example:

{
  "type": "cf.workersBuilds.worker.build.succeeded",
  "source": {
    "type": "workersBuilds.worker",
    "workerName": "my-worker"
  },
  "payload": {
    "buildUuid": "build-12345678-90ab-cdef-1234-567890abcdef",
    "status": "success",
    "buildOutcome": "success",
    "createdAt": "2025-05-01T02:48:57.132Z",
    "initializingAt": "2025-05-01T02:48:58.132Z",
    "runningAt": "2025-05-01T02:48:59.132Z",
    "stoppedAt": "2025-05-01T02:50:15.132Z",
    "buildTriggerMetadata": {
      "buildTriggerSource": "push_event",
      "branch": "main",
      "commitHash": "abc123def456",
      "commitMessage": "Fix bug in authentication",
      "author": "developer@example.com",
      "buildCommand": "npm run build",
      "deployCommand": "wrangler deploy",
      "rootDirectory": "/",
      "repoName": "my-worker-repo",
      "providerAccountName": "github-user",
      "providerType": "github"
    }
  },
  "metadata": {
    "accountId": "f9f79265f388666de8122cfb508d7776",
    "eventSubscriptionId": "1830c4bb612e43c3af7f4cada31fbf3f",
    "eventSchemaVersion": 1,
    "eventTimestamp": "2025-05-01T02:48:57.132Z"
  }
}

Workers KV

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"
  }
}

Workflows

instance.queued

Triggered when an instance was created and is awaiting execution.

Example:

{
  "type": "cf.workflows.workflow.instance.queued",
  "source": {
    "type": "workflows.workflow",
    "workflowName": "my-workflow"
  },
  "payload": {
    "versionId": "v1",
    "instanceId": "inst-12345678-90ab-cdef-1234-567890abcdef"
  },
  "metadata": {
    "accountId": "f9f79265f388666de8122cfb508d7776",
    "eventSubscriptionId": "1830c4bb612e43c3af7f4cada31fbf3f",
    "eventSchemaVersion": 1,
    "eventTimestamp": "2025-05-01T02:48:57.132Z"
  }
}

instance.started

Triggered when an instance starts or resumes execution.

Example:

{
  "type": "cf.workflows.workflow.instance.started",
  "source": {
    "type": "workflows.workflow",
    "workflowName": "my-workflow"
  },
  "payload": {
    "versionId": "v1",
    "instanceId": "inst-12345678-90ab-cdef-1234-567890abcdef"
  },
  "metadata": {
    "accountId": "f9f79265f388666de8122cfb508d7776",
    "eventSubscriptionId": "1830c4bb612e43c3af7f4cada31fbf3f",
    "eventSchemaVersion": 1,
    "eventTimestamp": "2025-05-01T02:48:57.132Z"
  }
}

instance.paused

Triggered when an instance pauses execution.

Example:

{
  "type": "cf.workflows.workflow.instance.paused",
  "source": {
    "type": "workflows.workflow",
    "workflowName": "my-workflow"
  },
  "payload": {
    "versionId": "v1",
    "instanceId": "inst-12345678-90ab-cdef-1234-567890abcdef"
  },
  "metadata": {
    "accountId": "f9f79265f388666de8122cfb508d7776",
    "eventSubscriptionId": "1830c4bb612e43c3af7f4cada31fbf3f",
    "eventSchemaVersion": 1,
    "eventTimestamp": "2025-05-01T02:48:57.132Z"
  }
}

instance.errored

Triggered when an instance step throws an error.

Example:

{
  "type": "cf.workflows.workflow.instance.errored",
  "source": {
    "type": "workflows.workflow",
    "workflowName": "my-workflow"
  },
  "payload": {
    "versionId": "v1",
    "instanceId": "inst-12345678-90ab-cdef-1234-567890abcdef"
  },
  "metadata": {
    "accountId": "f9f79265f388666de8122cfb508d7776",
    "eventSubscriptionId": "1830c4bb612e43c3af7f4cada31fbf3f",
    "eventSchemaVersion": 1,
    "eventTimestamp": "2025-05-01T02:48:57.132Z"
  }
}

instance.terminated

Triggered when an instance is manually terminated.

Example:

{
  "type": "cf.workflows.workflow.instance.terminated",
  "source": {
    "type": "workflows.workflow",
    "workflowName": "my-workflow"
  },
  "payload": {
    "versionId": "v1",
    "instanceId": "inst-12345678-90ab-cdef-1234-567890abcdef"
  },
  "metadata": {
    "accountId": "f9f79265f388666de8122cfb508d7776",
    "eventSubscriptionId": "1830c4bb612e43c3af7f4cada31fbf3f",
    "eventSchemaVersion": 1,
    "eventTimestamp": "2025-05-01T02:48:57.132Z"
  }
}

instance.completed

Triggered when an instance finishes execution successfully.

Example:

{
  "type": "cf.workflows.workflow.instance.completed",
  "source": {
    "type": "workflows.workflow",
    "workflowName": "my-workflow"
  },
  "payload": {
    "versionId": "v1",
    "instanceId": "inst-12345678-90ab-cdef-1234-567890abcdef"
  },
  "metadata": {
    "accountId": "f9f79265f388666de8122cfb508d7776",
    "eventSubscriptionId": "1830c4bb612e43c3af7f4cada31fbf3f",
    "eventSchemaVersion": 1,
    "eventTimestamp": "2025-05-01T02:48:57.132Z"
  }
}

Common schema fields

All events include these common fields:

Field	Type	Description
type	string	The event type identifier
source	object	Contains source-specific information like IDs and names
metadata.accountId	string	Your Cloudflare account ID
metadata.eventSubscriptionId	string	The subscription that triggered this event
metadata.eventSchemaVersion	number	The version of the event schema
metadata.eventTimestamp	string	The ISO 8601 timestamp when the event occurred
payload	object	The event-specific data containing details about what happened