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Log in; returns the opaque bearer access_token (field is access_token, not token).

POST
/v1/auth/login
curl --request POST \
--url http://localhost:8080/v1/auth/login \
--header 'Content-Type: application/json' \
--data '{ "email": "hello@example.com", "password": "example", "device_key": "example", "client_version": "example", "contract_version": "example" }'
Media typeapplication/json
object
email
required
string format: email
password
required
string
device_key

Optional; binds the minted token to this device (LP-SEC-01).

string
client_version

Optional; native client (P9-01).

string
contract_version

Optional; native client (P9-01).

string
Examplegenerated
{
"email": "hello@example.com",
"password": "example",
"device_key": "example",
"client_version": "example",
"contract_version": "example"
}

Authenticated.

Media typeapplication/json
object
access_token
required

The opaque bearer token — the field is access_token, NOT token.

string
token_type
required
string
Allowed values: Bearer
expires_at
string format: date-time
user
required
object
id
required
string format: uuid
email
required
string format: email
username
required
string
role
required
string
Allowed values: user admin
created_at

Present on /v1/me + register; omitted from the login user.

string format: date-time
min_client_version
string
latest_client_version
string
Example
{
"token_type": "Bearer",
"user": {
"role": "user"
}
}

Missing/invalid/expired/revoked token.

Media typeapplication/json
object
error
required
object
code
required

E.g. validation_failed, unauthorized, forbidden, not_found, conflict, session_quota_exceeded, home_in_use, home_not_provisioned, parent_app_disabled, profile_ineligible, profile_not_launchable_for_app, no_host_available, capacity_exhausted, restart_required, rate_limited, internal. Open string, not an enum: new codes are additive and an unknown one falls through to a client’s generic per-status branch.

string
message
required
string
live_sessions

Present on restart_required.

integer
session_id

Steam library discovery Phase 3, ADDITIVE: present on home_in_use when the guard could name the CONFLICTING live session - the one already holding the home. It is here so the client can offer “go to your running session” with a link instead of a dead-end toast. OMITTED rather than empty when the conflict is known but the session is not, so a client branches on presence and never renders a link to nowhere. Load-bearing once derived tiles exist: the lock is held by the PARENT’s home, so a user who clicks a game tile can be refused because a DIFFERENT app (the Steam launcher, or another game from the same install) is running, and without the session id the refusal reads as a bug. See control-api.md §Derived tiles.

string format: uuid
derived_tiles

Steam library discovery Phase 3, ADDITIVE: present on the 409 conflict from DELETE /v1/apps/{id} when the app has derived tiles and ?delete_derived=true was not sent. A LIST, not a count - the point of the confirmation is that the admin sees what they are about to destroy. Capped; an empty array means the tiles could not be listed, never that there are none.

Array<object>
object
id
required
string format: uuid
name
required
string
Examplegenerated
{
"error": {
"code": "example",
"message": "example",
"live_sessions": 1,
"session_id": "2489E9AD-2EE2-8E00-8EC9-32D5F69181C0",
"derived_tiles": [
{
"id": "2489E9AD-2EE2-8E00-8EC9-32D5F69181C0",
"name": "example"
}
]
}
}

Client_too_old (P9-08 / #380) - the presented client version is below the operator-configured floor. Emitted by POST /v1/auth/login (body client_version) and by the shared auth middleware on any bearer endpoint (header X-Quasar-Client-Version); the body is byte-identical either way, so a client parses it from one place.

Media typeapplication/json

The 426 body (P9-08 / #380). The standard error envelope plus the two advisory fields as TOP-LEVEL SIBLINGS - the same place the login 200 carries them, so a client reads them from one location whatever the status. A gated client never reaches a 200, so this is its only chance to learn which version to update to.

object
error
required
object
code
required

E.g. validation_failed, unauthorized, forbidden, not_found, conflict, session_quota_exceeded, home_in_use, home_not_provisioned, parent_app_disabled, profile_ineligible, profile_not_launchable_for_app, no_host_available, capacity_exhausted, restart_required, rate_limited, internal. Open string, not an enum: new codes are additive and an unknown one falls through to a client’s generic per-status branch.

string
message
required
string
live_sessions

Present on restart_required.

integer
session_id

Steam library discovery Phase 3, ADDITIVE: present on home_in_use when the guard could name the CONFLICTING live session - the one already holding the home. It is here so the client can offer “go to your running session” with a link instead of a dead-end toast. OMITTED rather than empty when the conflict is known but the session is not, so a client branches on presence and never renders a link to nowhere. Load-bearing once derived tiles exist: the lock is held by the PARENT’s home, so a user who clicks a game tile can be refused because a DIFFERENT app (the Steam launcher, or another game from the same install) is running, and without the session id the refusal reads as a bug. See control-api.md §Derived tiles.

string format: uuid
derived_tiles

Steam library discovery Phase 3, ADDITIVE: present on the 409 conflict from DELETE /v1/apps/{id} when the app has derived tiles and ?delete_derived=true was not sent. A LIST, not a count - the point of the confirmation is that the admin sees what they are about to destroy. Capped; an empty array means the tiles could not be listed, never that there are none.

Array<object>
object
id
required
string format: uuid
name
required
string
min_client_version
required

Always present on a 426 - the gate only fires when a floor is configured.

string
latest_client_version

Present only when the operator configured a latest-version advisory.

string
Examplegenerated
{
"error": {
"code": "example",
"message": "example",
"live_sessions": 1,
"session_id": "2489E9AD-2EE2-8E00-8EC9-32D5F69181C0",
"derived_tiles": [
{
"id": "2489E9AD-2EE2-8E00-8EC9-32D5F69181C0",
"name": "example"
}
]
},
"min_client_version": "example",
"latest_client_version": "example"
}

Too many requests.

Media typeapplication/json
object
error
required
object
code
required

E.g. validation_failed, unauthorized, forbidden, not_found, conflict, session_quota_exceeded, home_in_use, home_not_provisioned, parent_app_disabled, profile_ineligible, profile_not_launchable_for_app, no_host_available, capacity_exhausted, restart_required, rate_limited, internal. Open string, not an enum: new codes are additive and an unknown one falls through to a client’s generic per-status branch.

string
message
required
string
live_sessions

Present on restart_required.

integer
session_id

Steam library discovery Phase 3, ADDITIVE: present on home_in_use when the guard could name the CONFLICTING live session - the one already holding the home. It is here so the client can offer “go to your running session” with a link instead of a dead-end toast. OMITTED rather than empty when the conflict is known but the session is not, so a client branches on presence and never renders a link to nowhere. Load-bearing once derived tiles exist: the lock is held by the PARENT’s home, so a user who clicks a game tile can be refused because a DIFFERENT app (the Steam launcher, or another game from the same install) is running, and without the session id the refusal reads as a bug. See control-api.md §Derived tiles.

string format: uuid
derived_tiles

Steam library discovery Phase 3, ADDITIVE: present on the 409 conflict from DELETE /v1/apps/{id} when the app has derived tiles and ?delete_derived=true was not sent. A LIST, not a count - the point of the confirmation is that the admin sees what they are about to destroy. Capped; an empty array means the tiles could not be listed, never that there are none.

Array<object>
object
id
required
string format: uuid
name
required
string
Examplegenerated
{
"error": {
"code": "example",
"message": "example",
"live_sessions": 1,
"session_id": "2489E9AD-2EE2-8E00-8EC9-32D5F69181C0",
"derived_tiles": [
{
"id": "2489E9AD-2EE2-8E00-8EC9-32D5F69181C0",
"name": "example"
}
]
}
}