openapi: 3.1.0 info: title: ActiveCampaign Broadcasts Segments API version: '3' description: ActiveCampaign's REST API (version 3) for marketing automation, CRM, sales pipelines, and customer engagement. Covers contacts, lists, deals, campaigns, segments, custom fields, variables, broadcasts, and bulk operations. Authentication is via an account-specific API key supplied in the `Api-Token` header (the developer portal also references `X-Auth-Token`). contact: name: ActiveCampaign Developers url: https://developers.activecampaign.com servers: - url: https://{account}.api-us1.com description: Account-scoped ActiveCampaign API server variables: account: default: example description: Your ActiveCampaign account subdomain security: - ApiKeyAuth: [] tags: - name: Segments paths: /api/3/segments: post: summary: Create a segment tags: - Segments /api/3/segments/{segmentID}: get: summary: Retrieve a segment tags: - Segments put: summary: Update a segment tags: - Segments delete: summary: Delete a segment tags: - Segments components: securitySchemes: ApiKeyAuth: type: apiKey in: header name: Api-Token