> ## Documentation Index > Fetch the complete documentation index at: https://docs.zeroclick.ai/llms.txt > Use this file to discover all available pages before exploring further. # Create a seller > Creates a seller profile and upstream API base URL for payment proxying. ## OpenAPI ````yaml https://api.zeroclick.io/openapi.json post /v1/sellers/ openapi: 3.0.0 info: title: ZeroClick API description: >- REST API for managing ZeroClick sellers, services, pricing, usage, and analytics. Authenticate with an API key from the ZeroClick dashboard. version: 1.0.0 servers: - url: https://api.zeroclick.io security: - bearerAuth: [] tags: - name: API keys - name: Sellers - name: Services - name: Meters - name: Plans - name: Plan meter prices - name: Usage - name: Analytics - name: Stripe Connect - name: Sandbox - name: Organizations - name: Users paths: /v1/sellers/: post: tags: - Sellers summary: Create a seller description: Creates a seller profile and upstream API base URL for payment proxying. requestBody: required: true content: application/json: schema: type: object properties: name: type: string minLength: 1 maxLength: 200 pattern: ^[^<>\p{Cc}]*$ slug: type: string minLength: 1 maxLength: 80 pattern: ^[a-z0-9]+(?:-[a-z0-9]+)*$ upstreamBaseUrl: type: string format: uri description: type: string maxLength: 2000 brandColor: type: string pattern: ^#[0-9a-fA-F]{6}$ tagline: type: string maxLength: 160 tags: maxItems: 5 type: array items: type: string minLength: 1 maxLength: 40 docsUrl: type: string format: uri websiteUrl: type: string format: uri logoUrl: type: string format: uri llmsTxtUrl: type: string format: uri openApiUrl: type: string format: uri contactEmail: nullable: true type: string format: email pattern: >- ^(?!\.)(?!.*\.\.)([A-Za-z0-9_'+\-\.]*)[A-Za-z0-9_+-]@([A-Za-z0-9][A-Za-z0-9\-]*\.)+[A-Za-z]{2,}$ customDomainRequired: type: boolean required: - name - upstreamBaseUrl responses: '200': description: Default Response content: application/json: schema: type: object properties: seller: type: object properties: id: type: string name: type: string slug: type: string upstreamBaseUrl: type: string description: nullable: true type: string brandColor: nullable: true type: string tagline: nullable: true type: string tags: nullable: true type: array items: type: string docsUrl: nullable: true type: string websiteUrl: nullable: true type: string logoUrl: nullable: true type: string llmsTxtUrl: nullable: true type: string openApiUrl: nullable: true type: string contactEmail: nullable: true type: string includedUsageDailyCapMicros: nullable: true type: integer minimum: -9007199254740991 maximum: 9007199254740991 includedUsageWeeklyCapMicros: nullable: true type: integer minimum: -9007199254740991 maximum: 9007199254740991 onboardingRequired: type: boolean customDomainRequired: type: boolean required: - id - name - slug - upstreamBaseUrl - description - brandColor - tagline - tags - docsUrl - websiteUrl - logoUrl - llmsTxtUrl - openApiUrl - contactEmail - includedUsageDailyCapMicros - includedUsageWeeklyCapMicros - onboardingRequired - customDomainRequired additionalProperties: false required: - seller additionalProperties: false '403': description: Default Response content: application/json: schema: type: object properties: error: type: string enum: - organization_required - organization_permission_required - seller_not_found - service_not_found - meter_not_found - plan_not_found - plan_meter_price_not_found - duplicate_slug - duplicate_key - duplicate_plan_meter_price - signing_secret_not_found - insufficient_scope - payg_price_not_whole_cents - custom_domain_skip_unavailable - active_stateful_accounts_exist required: - error additionalProperties: false '404': description: Default Response content: application/json: schema: type: object properties: error: type: string enum: - organization_required - organization_permission_required - seller_not_found - service_not_found - meter_not_found - plan_not_found - plan_meter_price_not_found - duplicate_slug - duplicate_key - duplicate_plan_meter_price - signing_secret_not_found - insufficient_scope - payg_price_not_whole_cents - custom_domain_skip_unavailable - active_stateful_accounts_exist required: - error additionalProperties: false '409': description: Default Response content: application/json: schema: type: object properties: error: type: string enum: - organization_required - organization_permission_required - seller_not_found - service_not_found - meter_not_found - plan_not_found - plan_meter_price_not_found - duplicate_slug - duplicate_key - duplicate_plan_meter_price - signing_secret_not_found - insufficient_scope - payg_price_not_whole_cents - custom_domain_skip_unavailable - active_stateful_accounts_exist required: - error additionalProperties: false '422': description: Default Response content: application/json: schema: type: object properties: error: type: string enum: - organization_required - organization_permission_required - seller_not_found - service_not_found - meter_not_found - plan_not_found - plan_meter_price_not_found - duplicate_slug - duplicate_key - duplicate_plan_meter_price - signing_secret_not_found - insufficient_scope - payg_price_not_whole_cents - custom_domain_skip_unavailable - active_stateful_accounts_exist required: - error additionalProperties: false components: securitySchemes: bearerAuth: type: http scheme: bearer description: >- API key created in the ZeroClick dashboard under Settings → API keys. Keys start with `zc_`. Send them as `Authorization: Bearer zc_...`. ````