/versions/{id}/rollbackRestores an environment to a snapshot, in one transaction behind the same per-environment advisory lock that variables/apply uses. The environment is derived from the version, there is no environment in the path.
What it does, by name: variables present in the snapshot but missing live are re-created, variables present in both are overwritten when anything differs (value, type, isSecret, visibility, required, defaultValue), and live variables absent from the snapshot are soft-deleted. Ids are not preserved, a re-created variable gets a new id, so any client caching ids must re-read afterwards.
Rollback does not snapshot the current state first. Call POST .../versions before rolling back if you might want to come back.
The restored ciphertext is whatever was stored in the snapshot, copied verbatim. If the workspace passphrase was rotated without also re-encrypting the version entries, this call succeeds and writes values that no longer decrypt under the current key. Nothing warns you. Rotate version entries whenever you rotate live variables.
Requires both versions:write and variables:write.
Plan gate. Rollback needs a paid plan. On Free every rollback, including one to the latest version, returns 402 plan.upgrade_required with error.resource: "version" and nothing is restored. Dev, Team and Enterprise can roll back to any version.
Requires the versions:write or variables:write scope.
curl --request POST \
--url 'https://api.envless.cloud/versions/<id>/rollback' \
--header 'Authorization: Bearer ev_sk_xxxxxxxxxxxx'https://api.envless.cloud/versions/{id}/rollbackResponse headers
Authorization
AuthorizationstringrequiredheaderBearer token: an Envless API key (
ev_sk_…), created in the dashboard or withPOST /keys. The key is bound to one workspace; every request runs inside it.
Path parameters
idstringrequireduuidVersion uniqueId (uuid v7) to restore. Must belong to the workspace behind the key.
Responses
200OK
Roll back to a version succeeded.
successbooleanrequiredcodeintegerrequiredThe HTTP status of this response, repeated in the body.
messagestringrequirederrornullrequireddataobjectrequiredShow child attributesHide child attributes
versionLabelstringrequiredLabel of the version that was restored, for example
v3.addedintegerrequiredVariables re-created because they were in the snapshot but not live. New ids.
updatedintegerrequiredLive variables overwritten because at least one field differed.
removedintegerrequiredLive variables soft-deleted because the snapshot did not contain them.
_reqobjectShow child attributesHide child attributes
reqIdstringresTimeinteger | null
{
"success": true,
"code": 200,
"message": "OK",
"error": null,
"data": {
"versionLabel": "<string>",
"added": 1,
"updated": 1,
"removed": 1
},
"_req": {
"reqId": "<string>",
"resTime": 1
}
}Error envelope
Every failure below returns the same shape with success: false; branch on error.code, never on message.
successbooleanrequiredcodeintegerrequiredThe HTTP status of this response, repeated in the body.
messagestringrequirederrorobjectrequiredMachine-readable failure detail. Null on success.
Show child attributesHide child attributes
codeenum<string>requiredStable error code. Branch on this, never on
message.Options:
"auth.api_key_required","auth.api_key_not_found","auth.api_key_user_missing","auth.api_key_owner_not_member","auth.scope_missing","auth.scope_ceiling_exceeded","auth.key_project_restricted","auth.product_restricted","auth.permission_denied","auth.self_mutation_forbidden","auth.step_up_required","auth.step_up_fresh_required","auth.cli_token_not_accepted","auth.two_factor_required","auth.workspace_two_factor_required","auth.two_factor_invalid","auth.two_factor_replayed","auth.two_factor_locked","auth.two_factor_not_enabled","auth.two_factor_already_enabled","request.body_must_be_json","request.body_invalid","request.body_too_large","request.rate_limited","request.invalid_pagination","workspace.not_found","workspace.slug_conflict","workspace.limit_reached","workspace.delete_last","workspace.delete_too_early","workspace.delete_has_projects","domain.not_configured","domain.not_found","domain.invalid","domain.taken","domain.attempt_limit","product.not_found","product.slug_conflict","product.locked","project.not_found","project.ambiguous_product","project.slug_conflict","environment.not_found","environment.slug_conflict","environment.expose_disabled","environment.expose_private_product","variable.not_found","variable.name_conflict","variable.ciphertext_invalid","variable.baseline_drifted","version.not_found","member.not_found","member.already_exists","member.self_invite","member.self_mutation","member.owner_immutable","member.owner_cannot_leave","member.seat_limit","invite.already_pending","role.owner_not_assignable","role.limit_reached","role.immutable","role.in_use","invite.not_found","invite.expired","role.not_found","role.name_conflict","key.not_found","key.limit_reached","webhook.not_found","webhook.delivery_not_found","plan.limit_reached","plan.upgrade_required","request.not_found","request.method_not_allowed","request.conflict","auth.unauthorized","auth.forbidden","request.invalid","server.error"resourcestringThe resource or scope the failure relates to.
fieldstringThe request field that caused the failure.
dataobject | nullrequiredNull on most failures. A plan limit carries
{ limit, current }._reqobjectShow child attributesHide child attributes
reqIdstringresTimeinteger | null
{
"success": false,
"code": 400,
"message": "Something went wrong.",
"error": {
"code": "auth.api_key_required",
"resource": "<string>",
"field": "<string>"
},
"data": {},
"_req": {
"reqId": "<string>",
"resTime": 1
}
}400Bad Request
request.body_invalid - the version holds variable names that are no longer valid; rename them before rolling back.
401Unauthorized
auth.api_key_required- theAuthorizationheader is missing, or its value does not start withev_sk_.auth.api_key_not_found- the key is unknown, inactive or revoked.auth.api_key_user_missing- the key is valid but its owner no longer exists.auth.api_key_owner_not_member- the key's owner is no longer a member of the key's workspace.
402Payment Required
plan.upgrade_required - the version's project is locked by the plan's project limit, or the workspace is on the Free plan, where rollback is unavailable for every version including the latest. In the plan case error.resource is version and nothing is restored.
403Forbidden
auth.scope_missing- the key lacksversions:writeorvariables:write, both are required. Alsoauth.key_project_restrictedandauth.product_restrictedwhen the key or its owner cannot reach the version's project or product.auth.workspace_two_factor_required- the workspace requires two-factor authentication and the key's owner has not turned it on.
404Not Found
request.not_found - no version with that id in this workspace, or the version disappeared between the lookup and the transaction.
409Conflict
variable.name_conflict - a restored name already exists in the environment, differing only by letter case.
500Internal Server Error
server.error - an unexpected error; retry with backoff.
503Service Unavailable
server.error - the API is in maintenance mode or is missing its configuration; retry with backoff.
Rollback needs the Dev plan or above. On Free the workspace keeps only the latest published version, and this route answers 402 with error.code plan.upgrade_required, error.resource version and Rollback needs a paid plan. Upgrade to restore an earlier version. Nothing is deleted on a downgrade, so the same id restores again once the plan is back. See Plans and billing.