List a user's known browsers and networks (admin)

Docs version v1 (main)Nauthera is pre-1.0, in a design-partner program

GET/v1/admin/orgs/{slug}/users/{id}/devices

Returns the browsers and networks the user signed in from within the server's retention, most recently seen first: what a new-sign-in alert compares a sign-in with. A browser is named by the browser and system its user agent described and a network by its range; both are personal data, so a caller without the users.pii.read permission receives the list without them and withheld is true.

Reading the list is audited. Requires the nauthera.sessions:read scope and the sessions.read permission. The id must belong to slug's organization; one that belongs to another is answered as 404, exactly like an id that does not exist.

GET/v1/admin/orgs/{slug}/users/{id}/devices

curl -g 'https://auth.example.com/v1/admin/orgs/{slug}/users/{id}/devices' \
  -H "Authorization: Bearer $ACCESS_TOKEN"

Response

200 OK

{
  "items": [
    {
      "kind": "browser",
      "id": "string",
      "label": "Firefox on Linux",
      "country": "CH",
      "first_seen": "2026-01-15T09:30:00Z",
      "last_seen": "2026-01-15T09:30:00Z"
    }
  ],
  "withheld": false
}

Authorization

Bearer tokenOAuth 2.0nauthera.sessions:read

The access token must carry the scope shown.

Send it in the Authorization header:

The access token, as Bearer <token> (RFC 6750 §2.1) or, for a sender-constrained token, DPoP <token> (RFC 9449 §7.1). A token minted with a cnf.jkt confirmation is only accepted together with a DPoP proof signed by that key, whichever of the two schemes carries it.

The caller must also hold the permission sessions.read: Read users' sessions.

Path parameters

slugstringrequired
The organization slug. It names the TENANT OF RECORD for the operation: the rows it reads and writes, the policy its secrets are derived under, and the organization its audit record is filed against all come from this organization. A token is admitted only through its own slug, except a main-org token, which may be admitted through any — so cross-tenant administration is performed through the TARGET tenant's slug, never by naming its resources through another. A token reaching for a slug it may not be admitted through is refused identically whether that organization exists or not.
1–64 characters
idstringrequired
The user id (UUID).
1–64 characters

Headers

DPoPstring
DPoP proof JWT (RFC 9449 §4). REQUIRED on a request presenting a DPoP-bound access token, and it must be signed by the key named in the token's cnf.jkt and cover this request's method and URI. The proof is read from the request itself rather than from this decoded parameter, so every protected operation is covered whether or not it declares it.

Responses

200 OKapplication/jsonThe user's known browsers and networks.
The user's known browsers and networks.
Headers
- Cache-Controlno-store
Body
Every browser and network a user signed in from within the server's retention, most recently seen first. The server keeps a bounded number of each, so the list is not paged.
- itemsarray of objectsrequired
  The user's known browsers and networks.
  Each item:
  A browser or network a user signed in from within the server's retention, as the new-sign-in alert recognizes them. Neither the marker cookie nor the user agent is ever returned: a browser is named by the browser and system its user agent described, and a network by its range.
  Show item attributesHide item attributes
  kindenumrequired
  What a known device is: a browser, recognized by the marker cookie it kept, or a network, the /24 (IPv4) or /48 (IPv6) its address fell in.
  Possible values2 values
  browser
  network
  idstringrequired
  Names the browser to forget (DELETE .../devices/remembered?device=): a digest the server holds it under, never the marker cookie or the address it came from.
  at most 128 characters
  first_seenstring · date-timerequired
  The first sign-in from it that the server remembers.
  last_seenstring · date-timerequired
  The latest sign-in from it.
  labelstring
  A browser's name and system ("Firefox on Linux") or a network's range ("203.0.113.0/24"). Absent when it could not be read, or when it was withheld (see the list's withheld).
  Example"Firefox on Linux"
  countrystring
  For a network, the ISO 3166-1 alpha-2 code of the country its range is in. Present only when the server has an IP geolocation database (geoip.database) that knows the range; absent for a browser, and whenever label is.
  Example"CH"
  pattern ^[A-Z]{2}$
  remembered_atstring · date-time
  When a browser last passed a second factor under the user's password and factors as they are now. A policy with a remember window spares the challenge on it within that window. Absent when it never did, or did under a password or factors the user has since changed.
- withheldbooleanrequired
  True when every label was left out because the caller lacks the users.pii.read permission.
401 Unauthorizedapplication/problem+jsonProblem details (RFC 9457) with an RFC 6750 / RFC 9449 challenge.
Problem details (RFC 9457) with an RFC 6750 / RFC 9449 challenge.
Headers
- Cache-Controlno-store
- WWW-Authenticatestring
- DPoP-Noncestring
Body
RFC 9457 (formerly RFC 7807) problem details (application/problem+json). code is a stable machine-readable slug for the problem kind (it mirrors the last path segment of type), so consumers can branch on it without parsing prose. type is https://nauthera.io/problems/<code>, which resolves to the code's runbook: why it happened, who is affected and what to do (RFC 9457 §3.1.1). A problem without a code has about:blank. errors is present on validation failures and lists every offending field.
- titlestringrequired
  Example"Request validation failed"
- statusintegerrequired
  Example400
- typestring · uri
  Example"https://nauthera.io/problems/validation_error"
- detailstring
  Example"One or more fields did not satisfy the API schema."
- codeenum
  The kind of problem, as a stable machine-readable slug a client branches on and translates rather than parsing title or detail, which are English prose for logs. A problem whose status says everything the server knows carries no code.
  Show moreShow less
  validation_error is the one code whose message is not a sentence about the code itself: the request failed the schema, and the specifics are the errors list — one entry per offending field — which a form renders on those fields. required and malformed are spelled like two of the per-field violation codes (FieldError.code) but mean something else; the two vocabularies are told apart by position, never by spelling.
  
  Compatibility: this is a CLOSED enum, with the same cost as AuditAction: a client generated against an older version of this document rejects a problem carrying a code added after it was built. Regenerate on upgrade, or decode the field as a plain string. It is enumerated anyway so that what a client must translate is knowable from the contract alone.
  Possible values43 values
  invalid_request
  invalid_credentials
  forbidden
  unauthorized
  insufficient_user_authentication
  protected_account
  password_held_by_directory
  last_role_administrator
  invalid_code
  too_many_requests
  too_many_attempts
  account_locked
  account_unavailable
  already_enrolled
  registration_disabled
  registration_conflict
  captcha_failed
  invalid_reset_link
  password_reused
  password_too_short
  password_too_long
  password_compromised
  invalid_verification_link
  invalid_invitation_link
  mail_relay_missing
  email_unverified
  not_found
  conflict
  unavailable
  busy
  window_too_large
  too_many_series
  internal_error
  rate_limited
  malformed
  body_too_large
  required
  validation_error
  unknown_org
  invalid_token
  invalid_dpop_proof
  use_dpop_nonce
  server_error
- instancestring
  Example"/introspect"
- request_idstring
  Example"8d94ed49-1caf-4ab3-9594-557142f2d023"
- trace_idstring
  Distributed-trace id (hex) for correlating this response with traces and logs. Present only when tracing is enabled and the request was recorded. Opaque and safe to log/share.
  Example"4bf92f3577b34da6a3ce929d0e0e4736"
- errorsarray of objects
  Field-level violations (present for validation errors).
  Each item:
  A single field-level validation violation.
  Show item attributesHide item attributes
  fieldstringrequired
  Offending field, dotted for nested bodies (e.g. child.id).
  Example"token_type_hint"
  codestringrequired
  Machine-readable violation code: required, too_short, too_long, pattern, invalid_format, not_allowed, minimum, maximum, multiple_of, too_few, too_many, not_unique, malformed.
  Example"not_allowed"
  messagestringrequired
  Example"field token_type_hint must be one of [access_token, refresh_token]"
403 Forbiddenapplication/problem+jsonProblem details (RFC 9457) with an RFC 6750 / RFC 9449 challenge.
Problem details (RFC 9457) with an RFC 6750 / RFC 9449 challenge.
Headers
- Cache-Controlno-store
- WWW-Authenticatestring
- DPoP-Noncestring
Body
RFC 9457 (formerly RFC 7807) problem details (application/problem+json). code is a stable machine-readable slug for the problem kind (it mirrors the last path segment of type), so consumers can branch on it without parsing prose. type is https://nauthera.io/problems/<code>, which resolves to the code's runbook: why it happened, who is affected and what to do (RFC 9457 §3.1.1). A problem without a code has about:blank. errors is present on validation failures and lists every offending field.
- titlestringrequired
  Example"Request validation failed"
- statusintegerrequired
  Example400
- typestring · uri
  Example"https://nauthera.io/problems/validation_error"
- detailstring
  Example"One or more fields did not satisfy the API schema."
- codeenum
  The kind of problem, as a stable machine-readable slug a client branches on and translates rather than parsing title or detail, which are English prose for logs. A problem whose status says everything the server knows carries no code.
  Show moreShow less
  validation_error is the one code whose message is not a sentence about the code itself: the request failed the schema, and the specifics are the errors list — one entry per offending field — which a form renders on those fields. required and malformed are spelled like two of the per-field violation codes (FieldError.code) but mean something else; the two vocabularies are told apart by position, never by spelling.
  
  Compatibility: this is a CLOSED enum, with the same cost as AuditAction: a client generated against an older version of this document rejects a problem carrying a code added after it was built. Regenerate on upgrade, or decode the field as a plain string. It is enumerated anyway so that what a client must translate is knowable from the contract alone.
  Possible values43 values
  invalid_request
  invalid_credentials
  forbidden
  unauthorized
  insufficient_user_authentication
  protected_account
  password_held_by_directory
  last_role_administrator
  invalid_code
  too_many_requests
  too_many_attempts
  account_locked
  account_unavailable
  already_enrolled
  registration_disabled
  registration_conflict
  captcha_failed
  invalid_reset_link
  password_reused
  password_too_short
  password_too_long
  password_compromised
  invalid_verification_link
  invalid_invitation_link
  mail_relay_missing
  email_unverified
  not_found
  conflict
  unavailable
  busy
  window_too_large
  too_many_series
  internal_error
  rate_limited
  malformed
  body_too_large
  required
  validation_error
  unknown_org
  invalid_token
  invalid_dpop_proof
  use_dpop_nonce
  server_error
- instancestring
  Example"/introspect"
- request_idstring
  Example"8d94ed49-1caf-4ab3-9594-557142f2d023"
- trace_idstring
  Distributed-trace id (hex) for correlating this response with traces and logs. Present only when tracing is enabled and the request was recorded. Opaque and safe to log/share.
  Example"4bf92f3577b34da6a3ce929d0e0e4736"
- errorsarray of objects
  Field-level violations (present for validation errors).
  Each item:
  A single field-level validation violation.
  Show item attributesHide item attributes
  fieldstringrequired
  Offending field, dotted for nested bodies (e.g. child.id).
  Example"token_type_hint"
  codestringrequired
  Machine-readable violation code: required, too_short, too_long, pattern, invalid_format, not_allowed, minimum, maximum, multiple_of, too_few, too_many, not_unique, malformed.
  Example"not_allowed"
  messagestringrequired
  Example"field token_type_hint must be one of [access_token, refresh_token]"
404 Not Foundapplication/problem+jsonProblem details (RFC 9457).
Problem details (RFC 9457).
Body
RFC 9457 (formerly RFC 7807) problem details (application/problem+json). code is a stable machine-readable slug for the problem kind (it mirrors the last path segment of type), so consumers can branch on it without parsing prose. type is https://nauthera.io/problems/<code>, which resolves to the code's runbook: why it happened, who is affected and what to do (RFC 9457 §3.1.1). A problem without a code has about:blank. errors is present on validation failures and lists every offending field.
- titlestringrequired
  Example"Request validation failed"
- statusintegerrequired
  Example400
- typestring · uri
  Example"https://nauthera.io/problems/validation_error"
- detailstring
  Example"One or more fields did not satisfy the API schema."
- codeenum
  The kind of problem, as a stable machine-readable slug a client branches on and translates rather than parsing title or detail, which are English prose for logs. A problem whose status says everything the server knows carries no code.
  Show moreShow less
  validation_error is the one code whose message is not a sentence about the code itself: the request failed the schema, and the specifics are the errors list — one entry per offending field — which a form renders on those fields. required and malformed are spelled like two of the per-field violation codes (FieldError.code) but mean something else; the two vocabularies are told apart by position, never by spelling.
  
  Compatibility: this is a CLOSED enum, with the same cost as AuditAction: a client generated against an older version of this document rejects a problem carrying a code added after it was built. Regenerate on upgrade, or decode the field as a plain string. It is enumerated anyway so that what a client must translate is knowable from the contract alone.
  Possible values43 values
  invalid_request
  invalid_credentials
  forbidden
  unauthorized
  insufficient_user_authentication
  protected_account
  password_held_by_directory
  last_role_administrator
  invalid_code
  too_many_requests
  too_many_attempts
  account_locked
  account_unavailable
  already_enrolled
  registration_disabled
  registration_conflict
  captcha_failed
  invalid_reset_link
  password_reused
  password_too_short
  password_too_long
  password_compromised
  invalid_verification_link
  invalid_invitation_link
  mail_relay_missing
  email_unverified
  not_found
  conflict
  unavailable
  busy
  window_too_large
  too_many_series
  internal_error
  rate_limited
  malformed
  body_too_large
  required
  validation_error
  unknown_org
  invalid_token
  invalid_dpop_proof
  use_dpop_nonce
  server_error
- instancestring
  Example"/introspect"
- request_idstring
  Example"8d94ed49-1caf-4ab3-9594-557142f2d023"
- trace_idstring
  Distributed-trace id (hex) for correlating this response with traces and logs. Present only when tracing is enabled and the request was recorded. Opaque and safe to log/share.
  Example"4bf92f3577b34da6a3ce929d0e0e4736"
- errorsarray of objects
  Field-level violations (present for validation errors).
  Each item:
  A single field-level validation violation.
  Show item attributesHide item attributes
  fieldstringrequired
  Offending field, dotted for nested bodies (e.g. child.id).
  Example"token_type_hint"
  codestringrequired
  Machine-readable violation code: required, too_short, too_long, pattern, invalid_format, not_allowed, minimum, maximum, multiple_of, too_few, too_many, not_unique, malformed.
  Example"not_allowed"
  messagestringrequired
  Example"field token_type_hint must be one of [access_token, refresh_token]"
429 Too Many Requestsapplication/problem+jsonToo many requests.
Too many requests.
Body
RFC 9457 (formerly RFC 7807) problem details (application/problem+json). code is a stable machine-readable slug for the problem kind (it mirrors the last path segment of type), so consumers can branch on it without parsing prose. type is https://nauthera.io/problems/<code>, which resolves to the code's runbook: why it happened, who is affected and what to do (RFC 9457 §3.1.1). A problem without a code has about:blank. errors is present on validation failures and lists every offending field.
- titlestringrequired
  Example"Request validation failed"
- statusintegerrequired
  Example400
- typestring · uri
  Example"https://nauthera.io/problems/validation_error"
- detailstring
  Example"One or more fields did not satisfy the API schema."
- codeenum
  The kind of problem, as a stable machine-readable slug a client branches on and translates rather than parsing title or detail, which are English prose for logs. A problem whose status says everything the server knows carries no code.
  Show moreShow less
  validation_error is the one code whose message is not a sentence about the code itself: the request failed the schema, and the specifics are the errors list — one entry per offending field — which a form renders on those fields. required and malformed are spelled like two of the per-field violation codes (FieldError.code) but mean something else; the two vocabularies are told apart by position, never by spelling.
  
  Compatibility: this is a CLOSED enum, with the same cost as AuditAction: a client generated against an older version of this document rejects a problem carrying a code added after it was built. Regenerate on upgrade, or decode the field as a plain string. It is enumerated anyway so that what a client must translate is knowable from the contract alone.
  Possible values43 values
  invalid_request
  invalid_credentials
  forbidden
  unauthorized
  insufficient_user_authentication
  protected_account
  password_held_by_directory
  last_role_administrator
  invalid_code
  too_many_requests
  too_many_attempts
  account_locked
  account_unavailable
  already_enrolled
  registration_disabled
  registration_conflict
  captcha_failed
  invalid_reset_link
  password_reused
  password_too_short
  password_too_long
  password_compromised
  invalid_verification_link
  invalid_invitation_link
  mail_relay_missing
  email_unverified
  not_found
  conflict
  unavailable
  busy
  window_too_large
  too_many_series
  internal_error
  rate_limited
  malformed
  body_too_large
  required
  validation_error
  unknown_org
  invalid_token
  invalid_dpop_proof
  use_dpop_nonce
  server_error
- instancestring
  Example"/introspect"
- request_idstring
  Example"8d94ed49-1caf-4ab3-9594-557142f2d023"
- trace_idstring
  Distributed-trace id (hex) for correlating this response with traces and logs. Present only when tracing is enabled and the request was recorded. Opaque and safe to log/share.
  Example"4bf92f3577b34da6a3ce929d0e0e4736"
- errorsarray of objects
  Field-level violations (present for validation errors).
  Each item:
  A single field-level validation violation.
  Show item attributesHide item attributes
  fieldstringrequired
  Offending field, dotted for nested bodies (e.g. child.id).
  Example"token_type_hint"
  codestringrequired
  Machine-readable violation code: required, too_short, too_long, pattern, invalid_format, not_allowed, minimum, maximum, multiple_of, too_few, too_many, not_unique, malformed.
  Example"not_allowed"
  messagestringrequired
  Example"field token_type_hint must be one of [access_token, refresh_token]"
Errorapplication/problem+jsonProblem details (RFC 9457) with an RFC 6750 / RFC 9449 challenge.
Problem details (RFC 9457) with an RFC 6750 / RFC 9449 challenge.
Headers
- Cache-Controlno-store
- WWW-Authenticatestring
- DPoP-Noncestring
Body
RFC 9457 (formerly RFC 7807) problem details (application/problem+json). code is a stable machine-readable slug for the problem kind (it mirrors the last path segment of type), so consumers can branch on it without parsing prose. type is https://nauthera.io/problems/<code>, which resolves to the code's runbook: why it happened, who is affected and what to do (RFC 9457 §3.1.1). A problem without a code has about:blank. errors is present on validation failures and lists every offending field.
- titlestringrequired
  Example"Request validation failed"
- statusintegerrequired
  Example400
- typestring · uri
  Example"https://nauthera.io/problems/validation_error"
- detailstring
  Example"One or more fields did not satisfy the API schema."
- codeenum
  The kind of problem, as a stable machine-readable slug a client branches on and translates rather than parsing title or detail, which are English prose for logs. A problem whose status says everything the server knows carries no code.
  Show moreShow less
  validation_error is the one code whose message is not a sentence about the code itself: the request failed the schema, and the specifics are the errors list — one entry per offending field — which a form renders on those fields. required and malformed are spelled like two of the per-field violation codes (FieldError.code) but mean something else; the two vocabularies are told apart by position, never by spelling.
  
  Compatibility: this is a CLOSED enum, with the same cost as AuditAction: a client generated against an older version of this document rejects a problem carrying a code added after it was built. Regenerate on upgrade, or decode the field as a plain string. It is enumerated anyway so that what a client must translate is knowable from the contract alone.
  Possible values43 values
  invalid_request
  invalid_credentials
  forbidden
  unauthorized
  insufficient_user_authentication
  protected_account
  password_held_by_directory
  last_role_administrator
  invalid_code
  too_many_requests
  too_many_attempts
  account_locked
  account_unavailable
  already_enrolled
  registration_disabled
  registration_conflict
  captcha_failed
  invalid_reset_link
  password_reused
  password_too_short
  password_too_long
  password_compromised
  invalid_verification_link
  invalid_invitation_link
  mail_relay_missing
  email_unverified
  not_found
  conflict
  unavailable
  busy
  window_too_large
  too_many_series
  internal_error
  rate_limited
  malformed
  body_too_large
  required
  validation_error
  unknown_org
  invalid_token
  invalid_dpop_proof
  use_dpop_nonce
  server_error
- instancestring
  Example"/introspect"
- request_idstring
  Example"8d94ed49-1caf-4ab3-9594-557142f2d023"
- trace_idstring
  Distributed-trace id (hex) for correlating this response with traces and logs. Present only when tracing is enabled and the request was recorded. Opaque and safe to log/share.
  Example"4bf92f3577b34da6a3ce929d0e0e4736"
- errorsarray of objects
  Field-level violations (present for validation errors).
  Each item:
  A single field-level validation violation.
  Show item attributesHide item attributes
  fieldstringrequired
  Offending field, dotted for nested bodies (e.g. child.id).
  Example"token_type_hint"
  codestringrequired
  Machine-readable violation code: required, too_short, too_long, pattern, invalid_format, not_allowed, minimum, maximum, multiple_of, too_few, too_many, not_unique, malformed.
  Example"not_allowed"
  messagestringrequired
  Example"field token_type_hint must be one of [access_token, refresh_token]"

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Authorization

Path parameters

Headers

Responses

Headers

Body

Headers

Body

Headers

Body

Body

Body

Headers

Body