openapi: 3.1.0 info: title: Help Scout Mailbox API description: >- Minimal OpenAPI description for Help Scout's Mailbox API v2 covering core resources for conversations, threads, customers, mailboxes, users, teams, tags, workflows, and webhooks. Generated from public documentation; verify before production use. version: "2.0" contact: name: Help Scout Developer Documentation url: https://developer.helpscout.com/mailbox-api/ x-generated-from: https://developer.helpscout.com/mailbox-api/ x-generated-by: claude-crawl-2026-05-08 servers: - url: https://api.helpscout.net/v2 description: Help Scout Mailbox API production security: - oauth2: [] tags: - name: Conversations - name: Threads - name: Customers - name: Mailboxes - name: Users - name: Teams - name: Tags - name: Workflows - name: Webhooks paths: /conversations: get: operationId: listConversations summary: List conversations tags: - Conversations parameters: - name: page in: query schema: type: integer - name: status in: query schema: type: string responses: '200': description: Successful response content: application/json: schema: type: object post: operationId: createConversation summary: Create conversation tags: - Conversations requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/Conversation' responses: '201': description: Created /conversations/{id}: get: operationId: getConversation summary: Get conversation tags: - Conversations parameters: - name: id in: path required: true schema: type: integer responses: '200': description: Successful response content: application/json: schema: $ref: '#/components/schemas/Conversation' patch: operationId: updateConversation summary: Update conversation tags: - Conversations parameters: - name: id in: path required: true schema: type: integer requestBody: required: true content: application/json: schema: type: object responses: '204': description: Updated delete: operationId: deleteConversation summary: Delete conversation tags: - Conversations parameters: - name: id in: path required: true schema: type: integer responses: '204': description: Deleted /conversations/{id}/threads: post: operationId: createThread summary: Create thread tags: - Threads parameters: - name: id in: path required: true schema: type: integer requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/Thread' responses: '201': description: Created /customers: get: operationId: listCustomers summary: List customers tags: - Customers responses: '200': description: Successful response content: application/json: schema: type: object post: operationId: createCustomer summary: Create customer tags: - Customers requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/Customer' responses: '201': description: Created /customers/{id}: get: operationId: getCustomer summary: Get customer tags: - Customers parameters: - name: id in: path required: true schema: type: integer responses: '200': description: Successful response content: application/json: schema: $ref: '#/components/schemas/Customer' patch: operationId: updateCustomer summary: Update customer tags: - Customers parameters: - name: id in: path required: true schema: type: integer requestBody: required: true content: application/json: schema: type: object responses: '204': description: Updated /mailboxes: get: operationId: listMailboxes summary: List mailboxes tags: - Mailboxes responses: '200': description: Successful response content: application/json: schema: type: object /users: get: operationId: listUsers summary: List users tags: - Users responses: '200': description: Successful response content: application/json: schema: type: object /teams: get: operationId: listTeams summary: List teams tags: - Teams responses: '200': description: Successful response content: application/json: schema: type: object /tags: get: operationId: listTags summary: List tags tags: - Tags responses: '200': description: Successful response content: application/json: schema: type: object /workflows: get: operationId: listWorkflows summary: List workflows tags: - Workflows responses: '200': description: Successful response content: application/json: schema: type: object /webhooks: get: operationId: listWebhooks summary: List webhooks tags: - Webhooks responses: '200': description: Successful response content: application/json: schema: type: object post: operationId: createWebhook summary: Create webhook tags: - Webhooks requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/Webhook' responses: '201': description: Created components: securitySchemes: oauth2: type: oauth2 flows: clientCredentials: tokenUrl: https://api.helpscout.net/v2/oauth2/token scopes: {} schemas: Conversation: type: object properties: id: type: integer subject: type: string status: type: string type: type: string mailboxId: type: integer Thread: type: object properties: type: type: string text: type: string customer: type: object Customer: type: object properties: id: type: integer firstName: type: string lastName: type: string emails: type: array items: type: object Webhook: type: object properties: url: type: string events: type: array items: type: string secret: type: string