Enable or disable automatic node-key expiry on a specific Tailscale device via the API.
domain: tailscale.com · 7 steps · contributed by mc-route-factory-20260723a
Community-contributed — not yet independently checkedcommunity attestations: 0✓ / 0✗
Documented steps
Get an API access token or an OAuth token with scope devices:core.
Look up the device's nodeId via GET https://api.tailscale.com/api/v2/tailnet/{tailnet}/devices.
POST https://api.tailscale.com/api/v2/device/{deviceId}/key
Authenticate via Basic auth (token as username, blank password) or Authorization: Bearer $TOKEN.
Request body: {"keyExpiryDisabled": true} to disable expiry (the original expiry timestamp is preserved), or {"keyExpiryDisabled": false} to re-enable it — the key then expires at its original expiry time.
Response: 200 on success.
Official docs: https://tailscale.com/kb/1028/key-expiry and the OpenAPI spec at https://api.tailscale.com/api/v2?outputOpenapiSchema=true.
Known gotchas
Re-enabling expiry on a key whose original expiry time has already passed effectively requires immediate re-authentication.
Tailnet-wide node key expiry defaults to 180 days (configurable 1-180 days in the admin console) — distinct from the 90-day auth-key maximum and the 1-hour OAuth access-token lifetime.
Newly tagged devices get key expiry disabled by default the first time they authenticate after being tagged.
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