Human-in-the-loop
Full control over autonomy levels. Configure which topics the agent handles autonomously, which get drafted for review, and which are left to your team.
Email channel
Resolve email requests at lightning speed, with the level of detail customers expect.
Depending on the request, determine whether to auto-reply, prepare drafts for employees, or consider out-of-scope for the AI agent.
- >70% autonomous resolution
- Human in-the-loop
- 50+ languages
See it in action
Watch a Stellar email agent triage and respond to support emails.
See how the agent classifies incoming requests, decides on the right response mode, and drafts accurate, grounded replies.
Email triage · Unedited recording
Built for email
Every capability the agent needs. Nothing bolted on.
Email is a different medium. Stellar is designed for end-to-end email resolution — not a chatbot with a mailbox adapter.
System integration
Connect to your helpdesk, CRM, and internal APIs. Your email agent can look up orders, check account status, and pull customer history to craft accurate responses.
Knowledge management
Knowledge retrieval that actually works in production, grounded in your documentation, FAQs, and internal processes.
Complete audit trail
Every email interaction logged, with full transparency into agent reasoning, source attribution, and decision history.
Intelligent triage & classification
Automatically classify incoming emails by topic, urgency, and intent — routing each to the right response mode before a single word is drafted.
Multilingual support
Detect and respond in your customer's language. 50+ languages supported, with consistent quality across all of them.
Stellar Studio
Your control center for AI email agents
Stellar’s Studio lets you confidently create and operate your AI email agents, and comes with built-in tooling to effectively design, test, deploy and monitor your agents.
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Stellar’s Agent Editor makes it easy to design and iterate on your agents. Define triage rules, configure autonomy levels per topic, connect to external APIs, and set up guardrails and evaluation criteria.
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Test your agent in Stellar’s Playground via email simulation, or evaluate your agent using automated test suites.
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Stellar automates QA for every email using a set of built-in evaluation criteria, and allows writing your own custom evaluation criteria. Monitoring dashboards, response summaries, and automated scoring help quickly drill down on problem areas.
Security & compliance
Enterprise-grade security and reliability.
Stellar is built with enterprise-grade security and reliability at its core, and trusted by leading enterprises across industries such as insurance, hospitality and retail.
- ISO 27001 certified and GDPR compliant
- Zero Data Retention and EU Data Residency contracts with our LLM providers ensure no data is stored by the LLM providers, and all data remains in Europe
- Your data is never used for training the underlying AI models
- A sophisticated set of built-in guardrails shields your AI agents from attackers with malicious intent
Combined with a suite of tools to effectively audit, test and monitor your AI agents, you can go to production with confidence.
Visit Stellar’s Trust Center for certification & security controls
Integrations
Seamless integration with your existing technology stack.
Stellar can seamlessly integrate into your existing customer service technology stack, allowing Stellar's AI agents to work alongside your human employees. Connect to any customer support system, telephony provider, CRM, or other API-enabled system. Besides a range of built-in integrations, Stellar's flexible REST API connector and MCP connector allow you to easily connect to any API-enabled system.
FAQ
Frequently asked questions
How does the email agent decide what to do with each email?
You configure the rules. Define which topics the agent handles autonomously (auto-reply), which it drafts responses for human review, and which it leaves entirely to your team. The agent classifies each incoming email and routes it accordingly.
Can I review the agent's responses before they're sent?
Absolutely. The human-in-the-loop mode lets the agent draft responses that your team reviews, edits if needed, and approves before sending. You control the level of autonomy per topic.
How does the email agent access our knowledge base?
Stellar uses real-time retrieval grounded in your documentation, FAQs, helpdesk articles, and internal processes. Every response is sourced and attributed.
Can the email agent connect to our existing systems?
Yes. Stellar integrates with your helpdesk, CRM, ticketing system, and internal APIs. The agent can look up orders, check account status, and pull customer history to craft accurate, personalized responses.
Is there a complete audit trail?
Every email interaction is logged with full transparency — agent reasoning, source attribution, confidence scores, and decision history. You can review exactly why the agent responded the way it did.
What languages does the email agent support?
50+ languages with automatic detection. The agent responds in your customer's language with consistent quality.
How long does it take to go live?
Most customers are live within weeks. Stellar provides expert support throughout onboarding, from agent design through integration and launch.
Is my data secure?
Stellar is ISO 27001 certified, GDPR compliant, with EU data residency and zero LLM data retention. Your data is never used to train underlying AI models.