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Zendesk AI Agents (formerly Ultimate.ai)

Free tier

Self-improving AI agents for customer service that learn from every resolution

Free tier available·All audiences·Powered by Zendesk (proprietary AI)·API available
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Key strengths

Resolution Learning Loop that continuously self-improves from every interactionOmnichannel support across messaging, email, voice, and third-party platformsNo-code natural language workflow building — no rigid scripts requiredBuilt-in automated QA to audit every AI interaction at scaleDeep integration with existing systems including legacy environments
Free tier + paid plans
San Francisco, USA
Founded 2017
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Developer & Technical Setup

API & Integration

Zendesk AI Agents expose a robust API layer that allows developers to orchestrate actions across any system — including legacy environments — without requiring migration to a new platform.

# Example: Trigger an AI agent action via Zendesk API
curl -X POST https://yoursubdomain.zendesk.com/api/v2/tickets \
  -H "Authorization: Bearer {API_TOKEN}" \
  -H "Content-Type: application/json" \
  -d '{"ticket": {"subject": "Refund Request", "comment": {"body": "I need a refund for order #12345"}}}'

Key Technical Capabilities

  • Natural Language Procedure Generation — Describe workflows in plain text; the system generates executable multi-step procedures dynamically, no rigid scripting required.
  • Knowledge Grounding — Agents are grounded in unified knowledge from Help Center articles, Google Drive, and uploaded PDFs, keeping answers aligned as policies evolve.
  • System Orchestration — Connect agents to CRMs, ERPs, e-commerce platforms, and legacy systems via Zendesk's Actions & Integrations layer or custom API calls.
  • Forethought Integration — Deploy self-improving agents directly onto your existing service platform (non-Zendesk) using the Zendesk + Forethought stack.
  • Automated QA — Every interaction is automatically scored; developers can set policy guardrails and retrieve QA audit data programmatically.
  • Omnichannel Deployment — Single configuration supports messaging (web/mobile/social), email threading, and full voice call flows with intent tracking across turns.