/projects/{slug}/environments/{environmentSlug}Partial update of an environment's name and/or slug, addressed by its current slug. The new slug is validated as-is rather than slugified and must be free within the project. exposed is read-only over the API: sending it is silently ignored, and the value you get back is whatever is stored - this is the one environment route that returns the real exposed and updatedAt. Project slugs are unique per product, so pass ?product=<productSlug> when the project slug is ambiguous.
Requires the environments:write scope.
curl --request PATCH \
--url 'https://api.envless.cloud/projects/<slug>/environments/<environmentSlug>' \
--header 'Authorization: Bearer ev_sk_xxxxxxxxxxxx' \
--header 'Content-Type: application/json' \
--data '{
"name": "Billing",
"slug": "billing"
}'https://api.envless.cloud/projects/{slug}/environments/{environmentSlug}Response 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
slugstringrequiredProject slug, or the project's uniqueId. A UUID-shaped value is resolved as an id first, then as a slug.
environmentSlugstringrequiredCurrent environment slug. Ids are not accepted here.
Query parameters
productstringProduct slug used to disambiguate the project slug. Required whenever the same project slug exists in more than one product.
Request body
application/json · required
namestringmin length 2max length 50slugstringmin length 2max length 50pattern ^[a-z0-9]+(?:-[a-z0-9]+)*$Unique within the project. Validated as-is, not slugified.
Responses
200OK
Update an environment succeeded.
successbooleanrequiredcodeintegerrequiredThe HTTP status of this response, repeated in the body.
messagestringrequirederrornullrequireddataobjectrequiredShow child attributesHide child attributes
idstringrequirednamestringrequiredslugstringrequiredprojectIdstringrequiredexposedbooleanrequiredWhen true every published version is readable without an API key. Read-only here; change it in the dashboard.
createdAtstringrequireddate-timeupdatedAtstring | nulldate-time
_reqobjectShow child attributesHide child attributes
reqIdstringresTimeinteger | null
{
"success": true,
"code": 200,
"message": "OK",
"error": null,
"data": {
"id": "<string>",
"name": "<string>",
"slug": "<string>",
"projectId": "<string>",
"exposed": true,
"createdAt": "2026-05-30T10:14:22.000Z",
"updatedAt": "2026-05-30T10:14:22.000Z"
},
"_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_must_be_json- the body is absent or not parseable as JSON.erroris null on this branch.request.body_invalid-nameorslugfails length or slug-pattern validation.erroris null on this branch.
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 project is locked because it exceeds the plan's project allowance.
403Forbidden
auth.scope_missing- the key lacks environments:write.auth.key_project_restricted- the project is not in the key's project allowlist.auth.product_restricted- the project's product is private and the key owner holds no grant on it.auth.workspace_two_factor_required- the workspace requires two-factor authentication and the key's owner has not turned it on.
404Not Found
project.not_found- no project matches in scope for this key.erroris null on this branch.environment.not_found- no environment with that slug lives in the project.erroris null on this branch.
409Conflict
project.ambiguous_product- the project slug resolves to projects in more than one product; retry with?product=<productSlug>.erroris null on this branch.environment.slug_conflict- another environment in the project already owns the new slug.erroris null on this branch.
413Payload Too Large
request.body_too_large - the request body is larger than 1 MiB (1,048,576 bytes).
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.