openapi: 3.1.0 info: title: Apollo.io Accounts Emailer Campaigns API version: 1.0.0 description: Apollo.io provides sales intelligence and engagement APIs for prospecting, enrichment, sequences, deals, tasks and call records. This minimal OpenAPI was generated from the public reference documentation. servers: - url: https://api.apollo.io/v1 description: Production tags: - name: Emailer Campaigns paths: /emailer_campaigns/search: post: summary: Search for sequences operationId: searchSequences requestBody: content: application/json: schema: type: object responses: '200': description: OK content: application/json: schema: type: object tags: - Emailer Campaigns /emailer_campaigns/{id}/add_contact_ids: parameters: - name: id in: path required: true schema: type: string post: summary: Add contacts to sequence operationId: addContactsToSequence requestBody: content: application/json: schema: type: object responses: '200': description: OK content: application/json: schema: type: object tags: - Emailer Campaigns /emailer_campaigns/{id}/update_contact_status: parameters: - name: id in: path required: true schema: type: string post: summary: Update contact status in sequence operationId: updateContactStatusInSequence requestBody: content: application/json: schema: type: object responses: '200': description: OK content: application/json: schema: type: object tags: - Emailer Campaigns x-generated-from: https://docs.apollo.io/ x-generated-by: claude-crawl-2026-05-08