openapi: 3.2.0
info:
  title: Latitude Users API
  version: v1
  description: Open-source AI agent monitoring platform. Full observability into what's failing in production. Discover underlying issues, get alerts when something breaks and verify your fix worked.
  servers:
  - url: https://api.latitude.so
    description: Production
servers:
- url: https://api.latitude.so
tags:
- name: Users
paths:
  /v1/projects/{projectSlug}/users:
    get:
      tags:
      - Users
      x-fern-sdk-group-name: users
      x-fern-sdk-method-name: list
      summary: List project end-users with usage metrics
      description: Returns a page of the project's identified end-users over the range, each with trace, session, token, and cost metrics, plus cost aggregates across every matching user. The range defaults to the trailing 30 days.
      security:
      - ApiKeyAuth: []
      operationId: listUsers
      parameters:
      - schema:
          type: string
          description: Project slug (human-readable identifier)
        required: true
        description: Project slug (human-readable identifier)
        name: projectSlug
        in: path
      - schema:
          type: string
          format: date-time
          description: Lower bound (inclusive) of the time range. Defaults to 30 days before `toIso`.
        required: false
        description: Lower bound (inclusive) of the time range. Defaults to 30 days before `toIso`.
        name: fromIso
        in: query
      - schema:
          type: string
          format: date-time
          description: Upper bound (inclusive) of the time range. Defaults to now.
        required: false
        description: Upper bound (inclusive) of the time range. Defaults to now.
        name: toIso
        in: query
      - schema:
          type: integer
          minimum: 1
          maximum: 100
          description: Page size. Max 100.
        required: false
        description: Page size. Max 100.
        name: limit
        in: query
      - schema:
          type: integer
          nullable: true
          minimum: 0
          description: Zero-based offset of the first user to return.
        required: false
        description: Zero-based offset of the first user to return.
        name: offset
        in: query
      - schema:
          type: string
          enum:
          - lastSeen
          - firstSeen
          - traces
          - sessions
          - errors
          - tokens
          - cost
          - costAvg
          - costMedian
          description: Field to sort by. Defaults to most recently seen.
        required: false
        description: Field to sort by. Defaults to most recently seen.
        name: sortBy
        in: query
      - schema:
          type: string
          enum:
          - asc
          - desc
          description: Sort direction. Defaults to descending.
        required: false
        description: Sort direction. Defaults to descending.
        name: sortDirection
        in: query
      - schema:
          type: string
          maxLength: 500
          description: Case-insensitive substring match on the user's id or email.
        required: false
        description: Case-insensitive substring match on the user's id or email.
        name: searchQuery
        in: query
      responses:
        '200':
          description: Page of end-users
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/UserListResponse'
        '400':
          description: Validation error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '401':
          description: Unauthorized
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '404':
          description: Not found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
  /v1/projects/{projectSlug}/users/overview:
    get:
      tags:
      - Users
      x-fern-sdk-group-name: users
      x-fern-sdk-method-name: overview
      summary: Get project end-user overview
      description: Returns project-wide end-user aggregates over the range — unique and new users, identified vs total traces and sessions — plus a per-bucket activity histogram. The range defaults to the trailing 30 days.
      security:
      - ApiKeyAuth: []
      operationId: getUsersOverview
      parameters:
      - schema:
          type: string
          description: Project slug (human-readable identifier)
        required: true
        description: Project slug (human-readable identifier)
        name: projectSlug
        in: path
      - schema:
          type: string
          format: date-time
          description: Lower bound (inclusive) of the time range. Defaults to 30 days before `toIso`.
        required: false
        description: Lower bound (inclusive) of the time range. Defaults to 30 days before `toIso`.
        name: fromIso
        in: query
      - schema:
          type: string
          format: date-time
          description: Upper bound (inclusive) of the time range. Defaults to now.
        required: false
        description: Upper bound (inclusive) of the time range. Defaults to now.
        name: toIso
        in: query
      responses:
        '200':
          description: Users overview
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/UsersOverviewResponse'
        '400':
          description: Validation error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '401':
          description: Unauthorized
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '404':
          description: Not found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
  /v1/projects/{projectSlug}/users/{userId}/activity:
    get:
      tags:
      - Users
      x-fern-sdk-group-name: users
      x-fern-sdk-method-name: activity
      summary: Get end-user activity histogram
      description: Returns the end-user's per-bucket session activity across the range, oldest first. The range defaults to the trailing 30 days.
      security:
      - ApiKeyAuth: []
      operationId: getUserActivity
      parameters:
      - schema:
          type: string
          description: Project slug (human-readable identifier)
        required: true
        description: Project slug (human-readable identifier)
        name: projectSlug
        in: path
      - schema:
          type: string
          minLength: 1
          maxLength: 512
          description: End-user identifier. URL-encode values containing special characters.
        required: true
        description: End-user identifier. URL-encode values containing special characters.
        name: userId
        in: path
      - schema:
          type: string
          format: date-time
          description: Lower bound (inclusive) of the time range. Defaults to 30 days before `toIso`.
        required: false
        description: Lower bound (inclusive) of the time range. Defaults to 30 days before `toIso`.
        name: fromIso
        in: query
      - schema:
          type: string
          format: date-time
          description: Upper bound (inclusive) of the time range. Defaults to now.
        required: false
        description: Upper bound (inclusive) of the time range. Defaults to now.
        name: toIso
        in: query
      - schema:
          type: string
          enum:
          - 'true'
          - 'false'
          description: When `true`, scope every aggregate to errored traces only.
        required: false
        description: When `true`, scope every aggregate to errored traces only.
        name: errorsOnly
        in: query
      responses:
        '200':
          description: Activity histogram
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/UserActivityResponse'
        '400':
          description: Validation error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '401':
          description: Unauthorized
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '404':
          description: Not found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
  /v1/projects/{projectSlug}/users/{userId}/usage:
    get:
      tags:
      - Users
      x-fern-sdk-group-name: users
      x-fern-sdk-method-name: usage
      summary: Get end-user usage breakdown
      description: Returns the end-user's top values of a usage dimension — `model`, `provider`, or `tool` — ranked by distinct trace count.
      security:
      - ApiKeyAuth: []
      operationId: getUserUsage
      parameters:
      - schema:
          type: string
          description: Project slug (human-readable identifier)
        required: true
        description: Project slug (human-readable identifier)
        name: projectSlug
        in: path
      - schema:
          type: string
          minLength: 1
          maxLength: 512
          description: End-user identifier. URL-encode values containing special characters.
        required: true
        description: End-user identifier. URL-encode values containing special characters.
        name: userId
        in: path
      - schema:
          type: string
          enum:
          - model
          - provider
          - tool
          description: Dimension to break the usage down by.
        required: true
        description: Dimension to break the usage down by.
        name: dimension
        in: query
      - schema:
          type: integer
          minimum: 1
          maximum: 50
          description: Maximum number of values to return.
        required: false
        description: Maximum number of values to return.
        name: limit
        in: query
      - schema:
          type: string
          enum:
          - 'true'
          - 'false'
          description: When `true`, scope every aggregate to errored traces only.
        required: false
        description: When `true`, scope every aggregate to errored traces only.
        name: errorsOnly
        in: query
      responses:
        '200':
          description: Usage breakdown
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/UserUsageResponse'
        '400':
          description: Validation error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '401':
          description: Unauthorized
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '404':
          description: Not found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
  /v1/projects/{projectSlug}/users/{userId}/signals:
    get:
      tags:
      - Users
      x-fern-sdk-group-name: users
      x-fern-sdk-method-name: signals
      summary: List signals on an end-user's traces
      description: Returns the signals that occurred on the end-user's traces, most recent occurrence first. Occurrence counts are scoped to the user; signal identity and lifecycle states are the project's.
      security:
      - ApiKeyAuth: []
      operationId: listUserSignals
      parameters:
      - schema:
          type: string
          description: Project slug (human-readable identifier)
        required: true
        description: Project slug (human-readable identifier)
        name: projectSlug
        in: path
      - schema:
          type: string
          minLength: 1
          maxLength: 512
          description: End-user identifier. URL-encode values containing special characters.
        required: true
        description: End-user identifier. URL-encode values containing special characters.
        name: userId
        in: path
      - schema:
          type: integer
          minimum: 1
          maximum: 100
          description: Maximum number of signals to return.
        required: false
        description: Maximum number of signals to return.
        name: limit
        in: query
      responses:
        '200':
          description: User signals
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/UserSignalsResponse'
        '400':
          description: Validation error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '401':
          description: Unauthorized
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '404':
          description: Not found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
  /v1/projects/{projectSlug}/users/{userId}/behaviours:
    get:
      tags:
      - Users
      x-fern-sdk-group-name: users
      x-fern-sdk-method-name: behaviours
      summary: List behaviours observed for an end-user
      description: Returns the behaviour clusters observed on the end-user's sessions, most frequent first. Counts are scoped to the user; cluster identity comes from the project taxonomy.
      security:
      - ApiKeyAuth: []
      operationId: listUserBehaviours
      parameters:
      - schema:
          type: string
          description: Project slug (human-readable identifier)
        required: true
        description: Project slug (human-readable identifier)
        name: projectSlug
        in: path
      - schema:
          type: string
          minLength: 1
          maxLength: 512
          description: End-user identifier. URL-encode values containing special characters.
        required: true
        description: End-user identifier. URL-encode values containing special characters.
        name: userId
        in: path
      - schema:
          type: integer
          minimum: 1
          maximum: 100
          description: Maximum number of behaviours to return.
        required: false
        description: Maximum number of behaviours to return.
        name: limit
        in: query
      responses:
        '200':
          description: User behaviours
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/UserBehavioursResponse'
        '400':
          description: Validation error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '401':
          description: Unauthorized
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '404':
          description: Not found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
  /v1/projects/{projectSlug}/users/{userId}/memory:
    get:
      tags:
      - Users
      x-fern-sdk-group-name: users
      x-fern-sdk-method-name: memoryStores
      summary: List memory stores an end-user accessed
      description: Returns the memory stores the end-user accessed (reads and writes both count as access), most recent access first. Capped at the 1000 most recent stores. Each store links to the memory browsing operations under the `memory` group.
      security:
      - ApiKeyAuth: []
      operationId: listUserMemoryStores
      parameters:
      - schema:
          type: string
          description: Project slug (human-readable identifier)
        required: true
        description: Project slug (human-readable identifier)
        name: projectSlug
        in: path
      - schema:
          type: string
          minLength: 1
          maxLength: 512
          description: End-user identifier. URL-encode values containing special characters.
        required: true
        description: End-user identifier. URL-encode values containing special characters.
        name: userId
        in: path
      responses:
        '200':
          description: Memory stores accessed
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/UserMemoryStores'
        '400':
          description: Validation error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '401':
          description: Unauthorized
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '404':
          description: Not found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
  /v1/projects/{projectSlug}/users/{userId}:
    get:
      tags:
      - Users
      x-fern-sdk-group-name: users
      x-fern-sdk-method-name: get
      summary: Get end-user profile
      description: Returns the lifetime profile of one end-user — trace, session, token, cost, and activity rollups across all of the user's traces (not range-bound).
      security:
      - ApiKeyAuth: []
      operationId: getUser
      parameters:
      - schema:
          type: string
          description: Project slug (human-readable identifier)
        required: true
        description: Project slug (human-readable identifier)
        name: projectSlug
        in: path
      - schema:
          type: string
          minLength: 1
          maxLength: 512
          description: End-user identifier. URL-encode values containing special characters.
        required: true
        description: End-user identifier. URL-encode values containing special characters.
        name: userId
        in: path
      - schema:
          type: string
          enum:
          - 'true'
          - 'false'
          description: When `true`, scope every aggregate to errored traces only.
        required: false
        description: When `true`, scope every aggregate to errored traces only.
        name: errorsOnly
        in: query
      responses:
        '200':
          description: User profile
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/UserProfileResponse'
        '400':
          description: Validation error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '401':
          description: Unauthorized
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '404':
          description: Not found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
components:
  schemas:
    ProjectUser:
      type: object
      properties:
        userId:
          type: string
          description: The end-user's identifier, as reported on their traces' `user_id`.
        userEmail:
          type: string
          description: Latest non-empty email seen on the user's traces. Empty when never reported.
        firstSeenAt:
          type: string
          description: ISO-8601 timestamp of the user's first trace in the range.
        lastSeenAt:
          type: string
          description: ISO-8601 timestamp of the user's most recent trace in the range.
        traceCount:
          type: integer
          description: Traces attributed to the user in the range.
        sessionCount:
          type: integer
          description: Distinct sessions in which the user produced at least one trace.
        errorSessionCount:
          type: integer
          description: Of `sessionCount`, sessions with at least one errored trace.
        tokensTotal:
          type: integer
          description: Total tokens across the user's traces.
        costTotalMicrocents:
          type: number
          description: Total cost across the user's traces, in microcents.
        costAvgMicrocents:
          type: number
          description: Mean per-trace cost across the user's traces, in microcents.
        costMedianMicrocents:
          type: number
          description: Median (p50) per-trace cost across the user's traces, in microcents.
      required:
      - userId
      - userEmail
      - firstSeenAt
      - lastSeenAt
      - traceCount
      - sessionCount
      - errorSessionCount
      - tokensTotal
      - costTotalMicrocents
      - costAvgMicrocents
      - costMedianMicrocents
    UserActivityBucket:
      type: object
      properties:
        bucket:
          type: string
          description: ISO-8601 UTC timestamp of the bucket's start.
        count:
          type: integer
          description: Distinct user-attributed sessions starting in the bucket.
        errorCount:
          type: integer
          description: Of `count`, sessions with at least one errored trace.
      required:
      - bucket
      - count
      - errorCount
    UserSignalsResponse:
      type: object
      properties:
        items:
          type: array
          items:
            $ref: '#/components/schemas/UserSignal'
          description: Signals seen on the user's traces, most recent occurrence first.
      required:
      - items
    UserUsageSlice:
      type: object
      properties:
        value:
          type: string
          description: A value of the requested dimension (a model, provider, or tool name).
        traceCount:
          type: integer
          description: Distinct traces of the user carrying this value.
      required:
      - value
      - traceCount
    UserBehaviour:
      type: object
      properties:
        clusterId:
          type: string
          description: Stable identifier of the behaviour cluster.
        name:
          type: string
          description: Human-readable behaviour name.
        description:
          type: string
          description: Behaviour description.
        observationCount:
          type: integer
          description: Observations of this behaviour on the user's sessions.
        firstObservedAt:
          type: string
          description: ISO-8601 timestamp the behaviour was first observed for the user.
        lastObservedAt:
          type: string
          description: ISO-8601 timestamp the behaviour was last observed for the user.
      required:
      - clusterId
      - name
      - description
      - observationCount
      - firstObservedAt
      - lastObservedAt
    UserListResponse:
      type: object
      properties:
        items:
          type: array
          items:
            $ref: '#/components/schemas/ProjectUser'
          description: Page of users, in the requested sort order.
        totalCount:
          type: integer
          description: Total users matching the filters across every page.
        hasMore:
          type: boolean
          description: '`true` when there is at least one more page after this one.'
        limit:
          type: integer
          description: Page size used for this response.
        offset:
          type: integer
          description: Zero-based offset of the first item in this page.
        costRollup:
          $ref: '#/components/schemas/UserCostRollup'
      required:
      - items
      - totalCount
      - hasMore
      - limit
      - offset
      - costRollup
    UserBehavioursResponse:
      type: object
      properties:
        items:
          type: array
          items:
            $ref: '#/components/schemas/UserBehaviour'
          description: Behaviour clusters observed on the user's sessions, most frequent first.
      required:
      - items
    Error:
      type: object
      properties:
        error:
          type: string
      required:
      - error
    UserSignal:
      type: object
      properties:
        signalId:
          type: string
          description: Stable identifier of the signal.
        name:
          type: string
          description: Human-readable signal name.
        description:
          type: string
          description: Signal description.
        states:
          type: array
          items:
            type: string
          description: Lifecycle states currently applying to the signal.
        priority:
          type: string
          nullable: true
          description: Signal priority. `null` when unset.
        occurrences:
          type: integer
          description: Occurrences on the user's traces.
        affectedTraces:
          type: integer
          description: Distinct traces of the user that contributed an occurrence.
        firstSeenAt:
          type: string
          description: ISO-8601 timestamp of the first occurrence on the user's traces.
        lastSeenAt:
          type: string
          description: ISO-8601 timestamp of the most recent occurrence on the user's traces.
      required:
      - signalId
      - name
      - description
      - states
      - priority
      - occurrences
      - affectedTraces
      - firstSeenAt
      - lastSeenAt
    UserMemoryStores:
      type: object
      properties:
        items:
          type: array
          items:
            $ref: '#/components/schemas/MemoryUserStore'
          description: Memory stores the user accessed, most recent access first.
      required:
      - items
    UserActivityResponse:
      type: object
      properties:
        buckets:
          type: array
          items:
            $ref: '#/components/schemas/UserActivityBucket'
          description: Per-bucket session activity across the range, oldest first.
        bucketSeconds:
          type: integer
          description: Bucket width the buckets were computed with, in seconds.
        fromIso:
          type: string
          description: ISO-8601 lower bound of the resolved range.
        toIso:
          type: string
          description: ISO-8601 upper bound of the resolved range.
      required:
      - buckets
      - bucketSeconds
      - fromIso
      - toIso
    UserUsageResponse:
      type: object
      properties:
        items:
          type: array
          items:
            $ref: '#/components/schemas/UserUsageSlice'
          description: Top dimension values, by distinct trace count, most used first.
      required:
      - items
    UserProfileResponse:
      type: object
      properties:
        userId:
          type: string
          description: The end-user's identifier, as reported on their traces' `user_id`.
        userEmail:
          type: string
          description: Latest non-empty email seen on the user's traces. Empty when never reported.
        firstSeenAt:
          type: string
          description: ISO-8601 timestamp of the user's first trace ever.
        lastSeenAt:
          type: string
          description: ISO-8601 timestamp of the user's most recent trace ever.
        traceCount:
          type: integer
          description: Lifetime traces attributed to the user.
        sessionCount:
          type: integer
          description: Distinct sessions in which the user produced at least one trace.
        errorSessionCount:
          type: integer
          description: Of `sessionCount`, sessions with at least one errored trace.
        tokensTotal:
          type: integer
          description: Total tokens across the user's traces.
        tokensInput:
          type: integer
          description: Input (prompt) tokens across the user's traces.
        tokensOutput:
          type: integer
          description: Output (completion) tokens across the user's traces.
        costTotalMicrocents:
          type: number
          description: Total cost across the user's traces, in microcents.
        avgDurationNs:
          type: number
          description: Mean per-trace duration, in nanoseconds.
        activeDays:
          type: integer
          description: Distinct UTC days with at least one trace.
      required:
      - userId
      - userEmail
      - firstSeenAt
      - lastSeenAt
      - traceCount
      - sessionCount
      - errorSessionCount
      - tokensTotal
      - tokensInput
      - tokensOutput
      - costTotalMicrocents
      - avgDurationNs
      - activeDays
    UsersOverviewBucket:
      type: object
      properties:
        bucket:
          type: string
          description: ISO-8601 UTC timestamp of the bucket's start.
        activeUsers:
          type: integer
          description: Distinct identified users active in the bucket.
        traceCount:
          type: integer
          description: Identified traces in the bucket.
        sessionCount:
          type: integer
          description: Distinct user-attributed sessions starting in the bucket.
        errorSessionCount:
          type: integer
          description: Of `sessionCount`, those with at least one errored trace.
      required:
      - bucket
      - activeUsers
      - traceCount
      - sessionCount
      - errorSessionCount
    MemoryUserStore:
      type: object
      properties:
        storeId:
          type: string
          description: Store the user accessed. The empty string is the unattributed bucket.
        lastAccessedAt:
          type: string
          description: ISO-8601 timestamp of the user's most recent access to the store.
      required:
      - storeId
      - lastAccessedAt
    UserCostRollup:
      type: object
      properties:
        sum:
          type: number
          description: Sum of every matching user's total cost, in microcents.
        avg:
          type: number
          description: Mean of every matching user's mean per-trace cost, in microcents.
        median:
          type: number
          description: Median of every matching user's median per-trace cost, in microcents.
      required:
      - sum
      - avg
      - median
      description: Cost aggregates across every matching user, not just this page.
    UsersOverviewResponse:
      type: object
      properties:
        uniqueUsers:
          type: integer
          description: Distinct identified users with at least one trace in the range.
        newUsers:
          type: integer
          description: Users whose first trace ever falls inside the range.
        identifiedTraces:
          type: integer
          description: Traces in the range carrying a non-empty `user_id`.
        totalTraces:
          type: integer
          description: All traces in the range, identified or not.
        identifiedSessions:
          type: integer
          description: Distinct sessions in the range carrying a non-empty `user_id`.
        totalSessions:
          type: integer
          description: All distinct sessions in the range, identified or not.
        histogram:
          type: array
          items:
            $ref: '#/components/schemas/UsersOverviewBucket'
          description: Per-bucket activity across the range, oldest first.
        bucketSeconds:
          type: integer
          description: Bucket width the histogram was computed with, in seconds.
        fromIso:
          type: string
          description: ISO-8601 lower bound of the resolved range.
        toIso:
          type: string
          description: ISO-8601 upper bound of the resolved range.
      required:
      - uniqueUsers
      - newUsers
      - identifiedTraces
      - totalTraces
      - identifiedSessions
      - totalSessions
      - histogram
      - bucketSeconds
      - fromIso
      - toIso
  securitySchemes:
    ApiKeyAuth:
      type: http
      scheme: bearer
      bearerFormat: API key
      description: 'Organization-scoped API key, sent as `Authorization: Bearer <key>`.'
      x-fern-bearer:
        name: apiKey
        env: LATITUDE_API_KEY