> ## Documentation Index > Fetch the complete documentation index at: https://docs.1club.ai/llms.txt > Use this file to discover all available pages before exploring further. # Create a class type > Adds a kind of class the organization runs. List the existing types first - a club rarely wants two types meaning the same thing, and this endpoint will happily create a duplicate name. `slug` is optional and derived from the name when omitted, suffixed if that is taken. Send one explicitly only when something outside 1club already refers to it; an explicit slug that clashes is a 409 rather than a row quietly filed under a different key. Supports the `Idempotency-Key` header. ## OpenAPI ````yaml /openapi-platform.json post /v1/platform/class-types openapi: 3.0.0 info: title: 1club Platform API version: 1.0.0 description: >- The 1club Platform API lets you programmatically access and manage your organization's data. ## Official API Contract This documentation is the official source of truth for the 1club Platform API. If an integration relies on undocumented endpoints, fields, response shapes, or internal behavior outside this spec, we can't guarantee backward compatibility. Build against what's documented here to stay stable as the platform evolves. ## Authentication All requests require a customer API key passed as a Bearer token: ``` Authorization: Bearer 1club_sk_live_... ``` Generate API keys from the admin portal under **Settings > API Tokens**. The key is tied to your organization - all responses are scoped to your org's data. ## Rate Limiting - **100 requests per minute** per API key - When exceeded, the API returns `429 Too Many Requests` with a `Retry-After` header - Rate limit headers are included in every response: - `X-RateLimit-Limit` - max requests per window - `X-RateLimit-Remaining` - requests remaining - `X-RateLimit-Reset` - seconds until the window resets ## Errors | Status | Meaning | |--------|---------| | `400` | Invalid request parameters | | `401` | Missing or invalid API key | | `404` | Resource not found (or doesn't belong to your organization) | | `429` | Rate limit exceeded | | `500` | Internal server error | contact: name: 1club API Support email: support@1club.ai servers: - url: https://api.1club.ai description: Production API security: - customerApiAuth: [] tags: [] paths: /v1/platform/class-types: post: tags: - Classes summary: Create a class type description: > Adds a kind of class the organization runs. List the existing types first - a club rarely wants two types meaning the same thing, and this endpoint will happily create a duplicate name. `slug` is optional and derived from the name when omitted, suffixed if that is taken. Send one explicitly only when something outside 1club already refers to it; an explicit slug that clashes is a 409 rather than a row quietly filed under a different key. Supports the `Idempotency-Key` header. parameters: - in: header name: Idempotency-Key schema: type: string maxLength: 255 description: >- Retry-safe key; a repeat of the same request replays the first response requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/PlatformClassTypeCreate' responses: '201': description: Class type created content: application/json: schema: $ref: '#/components/schemas/PlatformClassType' '400': $ref: '#/components/responses/PlatformBadRequest' '401': $ref: '#/components/responses/PlatformUnauthorized' '403': description: API key is missing the required `classes:write` scope content: application/json: schema: $ref: '#/components/schemas/PlatformError' '409': description: An explicit `slug` is already used by another class type content: application/json: schema: $ref: '#/components/schemas/PlatformError' '429': $ref: '#/components/responses/PlatformRateLimited' security: - customerApiAuth: [] components: schemas: PlatformClassTypeCreate: type: object description: >- Fields accepted when creating a class type. Only `name` is required; `slug` is derived from it when omitted, and suffixed if that is taken. The defaults shown are what an omitted field becomes, and unknown fields are rejected. required: - name properties: name: type: string maxLength: 255 slug: type: string maxLength: 120 pattern: ^[a-z0-9]+(-[a-z0-9]+)*$ description: >- Stable key. Derived from the name when omitted; send one only when something outside 1club already refers to it. An explicit slug that clashes is a 409, and a rename never moves it. description: type: string nullable: true maxLength: 2000 revenueAccountId: type: integer nullable: true description: >- Where a sale on this kind of class posts, from GET /v1/platform/revenue-accounts. Leave it unset and the sale posts to whichever account the organization has marked default, resolved at the time of the sale. maxPartySize: type: integer minimum: 1 maximum: 1000 default: 1 description: How many people one booking may bring, including the booker. allowMultiDay: type: boolean default: false description: >- Whether a class of this kind may run across more than one calendar day. cancelIfAttendanceZero: type: boolean default: false description: Whether a class with nobody booked cancels itself. cancelIfAttendanceZeroHoursInAdvance: type: integer minimum: 0 maximum: 720 default: 0 description: >- Hours before the start that cancellation runs. Meaningless unless `cancelIfAttendanceZero`. bookingAudience: $ref: '#/components/schemas/PlatformContactAudience' PlatformClassType: type: object description: >- A kind of class the organization runs. Reference the `id` as `classTypeId` on a class, or in `classTypeIds` on a class pay rate policy. One shape for the list, get-by-id, create and update. properties: id: type: integer name: type: string slug: type: string description: >- Stable key, derived from the name when a create does not send one. A rename never moves it. description: type: string nullable: true revenueAccountId: type: integer nullable: true description: >- Where a sale on this kind of class posts. Null falls back to the organization's default account. classCount: type: integer description: Classes currently run as this type, past and future. createdAt: type: string format: date-time updatedAt: type: string format: date-time maxPartySize: type: integer description: >- How many people one booking on a class of this kind may bring, including the booker. allowMultiDay: type: boolean description: >- Whether a class of this kind may run across more than one calendar day. cancelIfAttendanceZero: type: boolean description: Whether a class with nobody booked cancels itself. cancelIfAttendanceZeroHoursInAdvance: type: integer description: >- Hours before the start that cancellation runs. Meaningless unless `cancelIfAttendanceZero`. bookingAudience: $ref: '#/components/schemas/PlatformContactAudience' PlatformError: type: object properties: error: type: string PlatformContactAudience: type: object description: >- Who something applies to, as a set of predicates a contact must match. `null` means everybody. The same shape a promotion segment and an automation entry condition use. `membershipPlanIds` is which plan the contact must HOLD, not which plan a purchase discounts. nullable: true properties: memberTypes: type: array maxItems: 20 items: type: string description: Values of the contact's `type`, e.g. `member`, `lead`. tags: type: array maxItems: 50 items: oneOf: - type: string maxLength: 100 - type: integer description: Tag ids or names the contact carries. membershipPlanIds: type: array maxItems: 50 items: type: integer description: Membership plans the contact must hold, from GET /v1/platform/plans. membershipPlanCategoryIds: type: array maxItems: 50 items: type: integer description: Plan categories the contact must hold a plan in. responses: PlatformBadRequest: description: Invalid request (bad parameters, or a body that fails validation) content: application/json: schema: $ref: '#/components/schemas/PlatformError' PlatformUnauthorized: description: Invalid or missing API key content: application/json: schema: $ref: '#/components/schemas/PlatformError' PlatformRateLimited: description: Rate limit exceeded content: application/json: schema: $ref: '#/components/schemas/PlatformError' securitySchemes: customerApiAuth: type: http scheme: bearer description: >- Organization-scoped bearer credential: a customer API key (1club_sk_live_...) or an MCP OAuth access token. ````