> ## Documentation Index > Fetch the complete documentation index at: https://docs.usechar.com/llms.txt > Use this file to discover all available pages before exploring further. # List plan tiers > Retrieve all public plan tiers for display on pricing pages. Returns tiers ordered by display order with their features and limits. ## OpenAPI ````yaml https://app.usechar.ai/api/spec.json get /plan-tiers openapi: 3.1.1 info: title: Char API version: 1.0.0 description: >- REST API for managing organizations, identity providers, end users, skills, threads, usage, and subscriptions. ## Authentication This API uses Bearer token authentication with WorkOS JWT tokens. Include the token in the Authorization header: ``` Authorization: Bearer ``` ## Authorization Levels - **Public endpoints**: No authentication required - **Protected endpoints**: Require valid JWT token (user authentication) - **Organization endpoints**: Require valid JWT token with organization context selected Most endpoints require organization context. Ensure your JWT token includes the `org_id` claim. ## Data Formats ### Allowed Domains The `allowed_domains` field is an array of origins (e.g., `https://app.example.com`). It is stored as JSON internally but surfaced as an array in the API. ### Timestamps All timestamps are returned as ISO 8601 strings (e.g., `"2025-01-15T10:30:00.000Z"`). ## Rate Limits No application-level rate limiting is currently enforced. ## Error Responses All errors follow a consistent format: ```json { "code": "ERROR_CODE", "status": 400, "message": "Human-readable error message", "data": { /* optional additional details */ } } ``` ### Error Codes | data.code | Description | |-----------|-------------| | `VALIDATION_ERROR` | Invalid input data (400) | | `AUTH_REQUIRED` | Missing or invalid authentication (401) | | `ACCESS_DENIED` | Permission denied (403) | | `PAYMENT_REQUIRED` | Subscription required (403) | | `ORG_CONTEXT_REQUIRED` | Organization selection required (403) | | `RESOURCE_NOT_FOUND` | Resource missing (404) | | `DUPLICATE_RESOURCE` | Resource already exists (409) | | `INTERNAL_ERROR` | Server-side error (500) | servers: - url: https://app.usechar.ai/api description: Production API security: - bearerAuth: [] tags: - name: Auth description: >- Authentication operations including session management and logout. All auth endpoints require a valid JWT token. - name: Users description: >- Access the current authenticated user's profile and organization memberships. - name: Organizations description: Organization details, members, and configuration such as allowed domains. - name: Identity Providers description: Manage SSO configuration and test IDP connectivity. - name: Directories description: Directory sync resources backed by WorkOS directories. - name: End Users description: End users who interact with embedded widgets, identified by IDP tokens. - name: Organization Skills description: CRUD for SKILL.md content following the Agent Skills spec. - name: Threads description: Conversation thread metadata and management. - name: Usage Analytics description: Usage and token analytics for the organization. - name: Plan Tiers description: Plan tiers and limit definitions. - name: Subscriptions description: Billing and subscription status via Polar integration. - name: OAuth description: OAuth 2.0 authorization flow endpoints for MCP client authentication. - name: OAuth Discovery description: RFC 8414/8707 well-known discovery endpoints for OAuth 2.0. paths: /plan-tiers: get: tags: - Plan Tiers summary: List plan tiers description: >- Retrieve all public plan tiers for display on pricing pages. Returns tiers ordered by display order with their features and limits. operationId: planTiers_list responses: '200': description: OK content: application/json: schema: type: array items: type: object properties: id: type: string description: Plan tier identifier (e.g., free, enterprise). name: type: string description: Human-readable plan name. polar_product_id: anyOf: - type: string description: >- Polar product ID associated with this tier (null for free plan). - type: 'null' max_seats: type: integer minimum: -9007199254740991 maximum: 9007199254740991 description: Maximum number of seats allowed (0 means unlimited). included_seats: type: integer minimum: -9007199254740991 maximum: 9007199254740991 description: Seats included in the base price for the tier. sso_enabled: type: boolean description: Whether SSO is enabled for this plan tier. scim_enabled: type: boolean description: >- Whether SCIM directory sync is enabled for this plan tier. audit_logs_enabled: type: boolean description: Whether audit logs are enabled for this plan tier. custom_domains_enabled: type: boolean description: Whether custom domains are enabled for this plan tier. max_sites: type: integer minimum: -9007199254740991 maximum: 9007199254740991 description: Maximum number of sites allowed (0 means unlimited). max_end_users: type: integer minimum: -9007199254740991 maximum: 9007199254740991 description: Maximum number of end users allowed (0 means unlimited). display_order: type: integer minimum: -9007199254740991 maximum: 9007199254740991 description: Ordering index for displaying tiers in the UI. is_public: type: boolean description: Whether this tier is visible on public pricing pages. created_at: type: string format: date-time x-native-type: date description: Timestamp when the plan tier was created. updated_at: type: string format: date-time x-native-type: date description: Timestamp when the plan tier was last updated. required: - id - name - polar_product_id - max_seats - included_seats - sso_enabled - scim_enabled - audit_logs_enabled - custom_domains_enabled - max_sites - max_end_users - display_order - is_public - created_at - updated_at description: >- Plan tier resource defining features and limits for a subscription tier '401': description: '401' content: application/json: schema: oneOf: - type: object properties: defined: const: true code: const: UNAUTHORIZED status: const: 401 message: type: string default: Authentication required data: type: object properties: code: const: AUTH_REQUIRED required: - code examples: - code: AUTH_REQUIRED required: - defined - code - status - message - data - type: object properties: defined: const: false code: type: string status: type: number message: type: string data: {} required: - defined - code - status - message '500': description: '500' content: application/json: schema: oneOf: - type: object properties: defined: const: true code: const: INTERNAL_SERVER_ERROR status: const: 500 message: type: string default: An internal error occurred data: type: object properties: code: const: INTERNAL_ERROR required: - code examples: - code: INTERNAL_ERROR required: - defined - code - status - message - data - type: object properties: defined: const: false code: type: string status: type: number message: type: string data: {} required: - defined - code - status - message components: securitySchemes: bearerAuth: type: http scheme: bearer bearerFormat: JWT description: >- WorkOS JWT token. Obtain via WorkOS AuthKit authentication flow. The token must include organization_id claim for organization-scoped endpoints. ````