> ## Documentation Index > Fetch the complete documentation index at: https://docs.userkit.dev/llms.txt > Use this file to discover all available pages before exploring further. # List contacts > Requires `customers:read`. Staff are authorized for the whole organization, so `?environment=` is a legitimate **view** parameter here — the opposite posture from the machine surface, where the credential decides and no parameter may. ## OpenAPI ````yaml /api-reference/openapi.json get /v1/organization/contacts openapi: 3.1.0 info: title: UserKit API version: 1.0.0 description: >- The HTTP surface of UserKit. Two planes share one API. The **staff plane** is what a human uses in the panel: users, organizations, roles, members, keys. The **customer plane** is what a developer's own product uses: contacts, identities, hosted or federated sign-in. Every error answers the same envelope — `{"error": {"code", "message"}}`. The `code` is a stable contract to branch on; the `message` is for a person and may change. servers: - url: '{baseUrl}' description: The API host. variables: baseUrl: default: https://api.userkit.dev description: Base URL of the API, no trailing slash. security: - sessionToken: [] tags: - name: Authentication description: >- Public sign-up, sign-in, two-factor and password recovery for staff accounts. - name: Session description: >- The active session: who the caller is, which organization they are in, and signing out. - name: Account description: The caller's own account — profile, password, sessions, avatar. - name: Two-factor description: >- TOTP setup, activation and recovery codes. Returns 501 when two-factor is unavailable on the server. - name: Organizations description: The organizations a user belongs to, and the active one. - name: Environments description: >- The live and test environments seeded with every organization, and their identity settings. - name: Members description: Memberships and invitations. - name: Roles description: Roles and the permission catalogue they draw from. - name: API keys description: Secret keys (`uk_sk_…`) and publishable keys (`uk_pk_…`). - name: Contacts (panel) description: >- The staff view of the customer plane. Reads take `?environment=` as an explicit view parameter. - name: Contacts (server) description: >- The machine surface, authenticated by an API key. The environment is the key's environment and cannot be named by the caller. - name: Customer plane description: >- Called from the developer's own pages with a publishable key: boot, magic link, and the contact's own session. - name: Hosted auth description: >- Sign-up, sign-in, verification and recovery for contacts, when UserKit owns the account. - name: System description: Health and the internal job callback. paths: /v1/organization/contacts: get: tags: - Contacts (panel) summary: List contacts description: >- Requires `customers:read`. Staff are authorized for the whole organization, so `?environment=` is a legitimate **view** parameter here — the opposite posture from the machine surface, where the credential decides and no parameter may. operationId: listContactsPanel parameters: - $ref: '#/components/parameters/OrganizationHeader' - $ref: '#/components/parameters/EnvironmentQuery' - $ref: '#/components/parameters/Limit' - $ref: '#/components/parameters/Offset' responses: '200': description: The contacts. content: application/json: schema: type: object properties: contacts: type: array items: $ref: '#/components/schemas/Contact' '400': $ref: '#/components/responses/BadRequest' '401': $ref: '#/components/responses/Unauthorized' '403': $ref: '#/components/responses/Forbidden' components: parameters: OrganizationHeader: name: X-Organization-Id in: header required: false schema: type: string description: >- The organization the caller is acting on — the `org_…` code that appears in the panel URL. It *identifies*; the membership JOIN is what *authorizes*, so a forged code reads nothing. Absent, the session's default organization answers. EnvironmentQuery: name: environment in: query required: false schema: type: string enum: - live - test default: live description: >- Which environment to read. A view parameter, valid only on the staff surface. Limit: name: limit in: query required: false schema: type: integer default: 50 minimum: 1 maximum: 200 description: Page size. Values outside 1–200 fall back to 50. Offset: name: offset in: query required: false schema: type: integer default: 0 minimum: 0 schemas: Contact: type: object description: One of the developer's own users — anonymous or identified. properties: id: type: string format: uuid name: type: - string - 'null' email: type: - string - 'null' avatar_url: type: - string - 'null' identified: type: boolean description: Whether this contact is more than a visitor. email_verified: type: boolean description: >- Whether the ADDRESS was proven — by a verification link, a reset link or a magic link. Distinct from a session's `verified` flag. attribution: $ref: '#/components/schemas/Attribution' first_seen_at: type: string format: date-time last_seen_at: type: string format: date-time created_at: type: string format: date-time Attribution: type: object description: >- First touch, captured on the visitor at first load and preserved through a merge. All fields optional; empty means unknown. properties: utm_source: type: - string - 'null' utm_medium: type: - string - 'null' utm_campaign: type: - string - 'null' utm_term: type: - string - 'null' utm_content: type: - string - 'null' referrer: type: - string - 'null' landing_page: type: - string - 'null' Error: type: object description: Every error in this API answers this envelope. properties: error: type: object properties: code: type: string description: Stable. Branch on this. message: type: string description: For a person. May change. required: - code - message required: - error example: error: code: forbidden message: your role does not allow this action responses: BadRequest: description: '`invalid_request` — the body or a parameter is malformed.' content: application/json: schema: $ref: '#/components/schemas/Error' Unauthorized: description: >- `unauthorized` — missing, malformed or expired credential. A well-formed credential from the wrong family says so: "this endpoint expects a staff session token, not an organization API key". content: application/json: schema: $ref: '#/components/schemas/Error' Forbidden: description: '`forbidden` — your role does not allow this action.' content: application/json: schema: $ref: '#/components/schemas/Error' securitySchemes: sessionToken: type: http scheme: bearer description: >- A staff session token, `uk_st_…`. Minted by sign-up, sign-in or the two-factor exchange. ````