Release an eSIM
Permanently releases an eSIM. This is irreversible: the eSIM can never be installed or used again, any remaining package data balance is forfeited, and release never credits anything back. Use release when responding to fraud or closing out a trip; to pause service temporarily, use Suspend an eSIM instead.
Release completes asynchronously: the 202 response returns the eSIM in releasing, and the esim.released webhook event confirms completion. An eSIM with an order still in flight cannot be released: wait for the order to reach a terminal status first. When unexpired balance remains, the request fails with a conflict unless acknowledge_balance_forfeit=true.
Request
- Base URL: https://us1.platform.bird.com
- URL: https://us1.platform.bird.com/v1/esim/sims/{esim_id}
- Auth: one of:
- HTTP bearer
- API key in cookie bird_session
Query parameters
Confirms you accept that remaining package balances are forfeited. Omitted or false while unexpired balance remains, the request fails with a conflict error.
Headers
Client-supplied key. On operations supporting request deduplication, a retained response is replayed for duplicate requests with the same key within the idempotency window (3 hours by default). This protection requires a workspace, organization, or staff-account scope. User-only and unscoped unauthenticated operations, streams, and operations with a separate replay contract do not use this response replay.
On a supported operation, if idempotency protection is unavailable before execution, the API returns 503 IdempotencyUnavailable (E01033) without executing this attempt. Retry with backoff using the same key and request. An operation that takes effect before its response is retained can still execute again on retry.
Two distinct 409 errors signal misuse:
- request_in_progress (E01004): The same key is currently being processed by a concurrent request. Wait briefly and retry. The lock expires within 30 seconds.
- idempotency_key_reuse (E01005): The same key has already completed against a different request body or method. Generate a new key.
Recommended key format is <event-type>/<entity-id> (for example welcome-user/usr_abc123).
Workspace context for the request. Required for dashboard authentication and master keys. Workspace keys and access tokens already identify their workspace; send that workspace or omit the header. A different one is rejected.
Organization context for the request. Required for dashboard authentication. An API key or access token carries its own organization, so send either that organization or no header at all; a different one is rejected.
Response
Release in progress. The eSIM is in releasing and transitions to released when complete.
Example response
{
"subscriber_id": "esub_01krdgeqcxet5s7t44vh8rt9mg",
"id": "esm_01krdgeqcxet5s7t44vh8rt9mg",
"iccid": "8944500212345678912",
"phone_number": "+31612345678",
"capabilities": {
"data": "yes",
"sms_inbound": "yes",
"sms_outbound": "yes",
"voice_inbound": "yes",
"voice_outbound": "yes"
},
"order_id": "eor_01krdgeqcxet5s7t44vh8rt9mg",
"display_name": "Amsterdam trip, order 8812",
"packages": [
{
"id": "epk_01krdgeqcxet5s7t44vh8rt9mg",
"order_id": "eor_01krdgeqcxet5s7t44vh8rt9mg",
"offer_id": "eof_01krdgeqcxet5s7t44vh8rt9mg",
"zone_id": "ezn_01krdgeqcxet5s7t44vh8rt9mg",
"zone_name": "Europe",
"countries": [
"US"
],
"price": {
"amount": "0.00995",
"currency_code": "EUR"
}
}
],
"zone_balances": [
{
"zone_id": "ezn_01krdgeqcxet5s7t44vh8rt9mg"
}
],
"available_actions": [
{
"operation": "suspendEsim",
"requires": [
"acknowledge_balance_forfeit"
]
}
],
"package_limit": 3,
"usage_available": true,
"last_attachment": {
"country_code": "US"
},
"tags": [
{
"name": "category",
"value": "welcome"
}
],
"created_at": "2026-05-20T09:14:52Z",
"updated_at": "2026-05-25T16:42:01Z"
}Changes
No recorded changes to this operation across all 2 revisions of this API.