> ## Documentation Index > Fetch the complete documentation index at: https://docs.orbit.devotel.io/llms.txt > Use this file to discover all available pages before exploring further. # Probabilistic merge-candidate review queue > Confidence-scored merge candidates for the CDP Identity Rules review queue. Scans the tenant's contacts, blocks them into phone-area / email-domain shards (so the pairwise comparison stays linear in the shard size), scores every in-shard pair with the probabilistic identity kernel, and returns the ranked candidates at/above `min_confidence`. Each candidate carries its band (`auto_merge` | `review`), the per-signal similarity breakdown, and a suggested primary/secondary so a reviewer can approve a merge in one click. READ-ONLY: it derives candidates on the fly and never merges or mutates a contact — approving a candidate calls the existing `POST /contacts/merge`. Owner / admin / developer with the `contacts:read` scope (the payload embeds masked contact PII). Off-spec query params degrade to their defaults rather than erroring. ## OpenAPI ````yaml /openapi.yaml get /api/v1/cdp/identity/merge-candidates openapi: 3.1.0 info: title: Devotel CPaaS API description: Orbit by Devotel — Communications Platform as a Service API version: 1.0.0 contact: name: Devotel url: https://devotel.io email: support@devotel.io license: name: Proprietary servers: - url: https://api.orbit.devotel.io description: Production security: - Bearer: [] - ApiKey: [] tags: - name: Messages description: >- Send and manage messages across all channels (SMS, WhatsApp, RCS, Email, Viber, etc.) - name: Fax description: >- List and track fax (MMS/T.38) transmissions on Telnyx-backed fax numbers (sending flows through the Messaging API) - name: Agents description: AI agent creation, configuration, and execution - name: Voice description: Voice calls, IVR, conferencing, and SIP trunking - name: OnCall description: On-call rotations and escalation policy planning for incident alerting - name: Webhooks description: Webhook endpoint management and delivery logs - name: Numbers description: Phone number search, provisioning, and configuration - name: Brand Identity description: >- Unified cross-channel brand trust posture (10DLC, toll-free, WhatsApp, RCS, branded calling, number KYC) - name: Contacts description: Contact management, segmentation, and lifecycle tracking - name: Campaigns description: Marketing campaign orchestration and analytics - name: Flows description: Automation flow builder and execution engine - name: Templates description: Message template management and approval workflows - name: Settings description: Organization, channel, and user preference settings - name: Verify description: OTP generation and verification across channels - name: Push description: Push notification delivery via FCM and APNs - name: Integrations description: Third-party service connections and OAuth management - name: CDP description: >- Customer Data Platform — activation surface (CRM object sync, streaming destinations, ad-audience activation) - name: Files description: >- Server-to-server media upload, listing, retrieval, and deletion (signed-URL backed) - name: Commerce description: >- Omnichannel conversational-commerce — persistent cart + checkout state machine, channel-agnostic hosted pay-by-link, native WhatsApp checkout, and AP2-style agent payment mandates. - name: Sync description: >- Real-time shared-state primitive (Twilio Sync parity) — Documents, Maps, Lists, and ephemeral Streams, with change events relayed over the /api/v1/ws/sync WebSocket gateway paths: /api/v1/cdp/identity/merge-candidates: get: tags: - CDP summary: Probabilistic merge-candidate review queue description: >- Confidence-scored merge candidates for the CDP Identity Rules review queue. Scans the tenant's contacts, blocks them into phone-area / email-domain shards (so the pairwise comparison stays linear in the shard size), scores every in-shard pair with the probabilistic identity kernel, and returns the ranked candidates at/above `min_confidence`. Each candidate carries its band (`auto_merge` | `review`), the per-signal similarity breakdown, and a suggested primary/secondary so a reviewer can approve a merge in one click. READ-ONLY: it derives candidates on the fly and never merges or mutates a contact — approving a candidate calls the existing `POST /contacts/merge`. Owner / admin / developer with the `contacts:read` scope (the payload embeds masked contact PII). Off-spec query params degrade to their defaults rather than erroring. parameters: - name: limit in: query required: false description: >- Max candidates returned (post-ranking). Out-of-range values fall back to 50. schema: type: integer minimum: 1 maximum: 200 default: 50 - name: min_confidence in: query required: false description: >- Confidence floor, 0–100. Defaults to the `review`-band threshold so the queue surfaces every candidate a human should look at. schema: type: integer minimum: 0 maximum: 100 default: 62 - name: include_auto_merge in: query required: false description: >- When false, drops `auto_merge`-band candidates and returns only the human-review mid-band. schema: type: boolean default: true responses: '200': description: Confidence-ranked merge candidates (may be empty) content: application/json: schema: type: object properties: data: type: object properties: thresholds: type: object properties: auto_merge: type: integer description: >- Confidence at/above which a pair is banded `auto_merge`. review: type: integer description: >- Confidence at/above which a pair lands in the review queue. min_confidence: type: integer include_auto_merge: type: boolean limit: type: integer scanned_contacts: type: integer description: Contacts pulled into the blocking pass this scan. total_candidates: type: integer description: Total candidates found before the page limit. truncated: type: boolean description: >- True when the scan or a shard hit its cap, so some pairs may be unscored this pass. count: type: integer description: Candidates in this page. candidates: type: array items: type: object properties: candidate_id: type: string confidence: type: integer description: Overall confidence, 0–100. band: type: string enum: - auto_merge - review primary_id: type: string description: >- Suggested merge survivor (the more complete record). secondary_id: type: string reasons: type: array items: type: string signals: type: array items: type: object properties: key: type: string similarity: type: number weight: type: number contact_primary: type: object description: >- PII-masked projection of the suggested primary contact. properties: id: type: string name: type: string nullable: true email: type: string nullable: true phone: type: string nullable: true company: type: string nullable: true tags: type: array items: type: string last_activity: type: string nullable: true contact_secondary: type: object description: >- PII-masked projection of the suggested secondary contact. properties: id: type: string name: type: string nullable: true email: type: string nullable: true phone: type: string nullable: true company: type: string nullable: true tags: type: array items: type: string last_activity: type: string nullable: true meta: $ref: '#/components/schemas/ResponseMeta' components: schemas: ResponseMeta: type: object required: - request_id - timestamp additionalProperties: false properties: request_id: type: string description: Unique request identifier (also returned as X-Request-Id header) timestamp: type: string format: date-time docs_url: type: string format: uri nullable: true securitySchemes: Bearer: type: http scheme: bearer bearerFormat: JWT description: Dashboard JWT token from Clerk ApiKey: type: apiKey name: X-API-Key in: header description: Server-to-server API key (dv_live_sk_*) ````