Maintenance canceled - Coinbase Developer Documentation

Authorizations

X-Hook0-Signature

string

header

required

HMAC-SHA256 signature of the raw request body, computed using your webhook secret. Webhook receivers should always verify this header before processing the event. The header value is hex-encoded and prefixed by the algorithm and timestamp, e.g. t=1700000000,v1=abc123... (refer to the Webhook Security docs for the exact verification algorithm).

This scheme applies to webhook delivery (outbound POSTs from CDP to your endpoint), not to inbound CDP API requests.

Body

application/json

The health.maintenance.canceled webhook event payload.

Common fields included in every maintenance event payload.

eventId

string<uuid>

required

Unique identifier for this logical webhook event. Webhooks are delivered at least once, so your endpoint may receive duplicate deliveries for the same event. Use this eventId as the idempotency/deduplication key.

Example:

"9d3f2b1a-6e4c-4a8b-9f1d-2c7a5e8b4f60"

timestamp

string<date-time>

required

The UTC ISO 8601 timestamp at which this event's transition occurred, not the time at which this webhook was delivered.

Example:

"2026-04-21T14:32:00.000Z"

eventType

enum<string>

required

The type of webhook event.

Available options:

health.maintenance.canceled

Example:

"health.maintenance.canceled"

data

object

required

Fired when a previously scheduled maintenance window is canceled before it starts.

Show child attributes

Example:

{
  "service": "payments_acceptance",
  "operation": "account_linking",
  "startsAt": "2026-04-22T02:00:00.000Z",
  "expectedDurationSeconds": 7200,
  "status": "scheduled",
  "message": "Scheduled maintenance window."
}

Response

Webhook received and processed successfully.