AI chat agents that take real action in your systems.

  1. Hi Oliver, how can we help?
  2. I placed an order via the website yesterday but accidentally used my old address as delivery address. I was wondering if I can still update that before my package is shipped.
  3. Got it, let me first check if the order has already been dispatched. If not, I can still help you update its delivery address.
  4. Looking up recent orders... Found 1 recent order
  5. Just to confirm, it’s your book order for ‘The Innovator’s Dilemma’, right?
  6. Yes
  7. Great, we’re still in time to update the address as your order is currently being processed. Could you share the new address to use for the delivery?
  8. Sure, that’s Amsteldijk 98, 1074 JD, Amsterdam
  9. Updating delivery address for order 390AK2... Updated delivery address for order 390AK2
  10. I’ve updated the order with the new address. Would you like me to set this as the default address associated with your account as well?
  11. Yes.
  12. Updating account's default delivery address... Updated default delivery address
  13. Done. Your order’s expected delivery date is next Wednesday, February 25th. Would you like me to send you an updated order confirmation with a tracking link?
  14. Yes please.
  15. Sending order confirmation email... Sent order confirmation email
  16. I’ve sent that to your email. Is there anything else I can help you with?
  17. No that’s all
  18. You’re welcome, have a great day!
  1. API call get_customer_orders()
    POST /api/get-customer-orders
    { user_id: "usr_3318" }
    { orders: [ { id: "390AK2", status: "processing", items: ["The Innovator's Dilemma"], modifiable: true } ] }
  2. API call update_delivery_address()
    POST /api/update-delivery-address
    { order_id: "390AK2", new_address: { line1: "Amsteldijk 98", postal_code: "1074 JD", city: "Amsterdam", country: "NL" } }
    { updated: true, new_eta: "2026-02-25" }
  3. API call update_default_address()
    POST /api/update-default-address
    { user_id: "usr_3318", address: { line1: "Amsteldijk 98", postal_code: "1074 JD", city: "Amsterdam", country: "NL" } }
    { updated: true }
  4. API call send_email()
    POST /api/send-email
    { user_id: "usr_3318", template: "order_address_updated", variables: { order_id: "390AK2", new_eta: "2026-02-25" } }
    { sent: true }
  • >70% autonomous resolution
  • Live in weeks
  • 50% cost savings
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Made for chat

A truly powerful self-serve chat experience.

Resolve complex requests end-to-end.

Stellar's chat agents can authenticate your customers, look up customer-specific details, update information in your systems, manage appointments, and send emails. Where most bots hit a wall, Stellar can help customers end-to-end with even complex requests.

Guardrails to safeguard every conversation.

Guardrails evaluate every conversation turn against preconfigured rules using a fully isolated secondary AI model. Any violation is immediately acted upon, either escalating to a human, nudging the agent back on track, or ending the conversation.

Easily add to site, app, or custom product.

Easily add Stellar's chat widget to your website with a few lines of code. Integrate Stellar chat into your mobile app or other products using Stellar's SDK. The same agent powers both.

AI + human

Autonomous by default. Human when it counts.

Your AI chat agents resolve most conversations on their own. For the situations that need involvement of a human colleague, your team is automatically notified so they can join the conversation. Flexibly configure which requests and scenarios to hand off to your employees.

Step in whenever needed

Easily stay on top of which chats might need your immediate attention. Stellar automatically surfaces the chats where AI agents are awaiting your input and which chats triggered a guardrail. You can either fully take over a chat or silently coach the agent mid-conversation.

Agents intelligently decide how to involve you

When a conversation needs a human call to proceed, Stellar's AI agent can either fully hand over to you with full conversation and action history, or simply request your input in the background before continuing the conversation.

Stellar Studio

Your control center for AI chat agents.

Stellar Studio is where teams build AI chat agents and operate them in production.

  • Agent Editor. Define personas, write procedures, connect APIs, set guardrails: everything a chat agent needs to handle a customer request.

  • Playground. Talk to your chat agents in-browser, or validate them at scale with automated test suites before release.

  • Monitoring & Evals. Every conversation is automatically QA’d against your criteria. Dashboards, transcripts, and CSAT scoring make problems easy to find and fix.

Get a tailored demo of Stellar Studio
Integrations

Seamlessly integrates with your existing systems.

Stellar plugs into any customer support system, telephony provider, CRM, REST API, and thousands of MCP-enabled tools.

Insights & Reporting

Insights into agent performance, operational bottlenecks, and voice of the customer.

Track agent performance, measure what matters to your business with custom evaluation criteria, and uncover the trends shaping your customer experience using AI.

Learn more about insights & reporting
Security & compliance

Enterprise-grade security and reliability.

Built to meet enterprise security and reliability requirements from day one. Trusted by leading enterprises across regulated industries such as insurance and healthcare.

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ISO 27001 certified and GDPR compliant
  • ISO 27001 & GDPR compliant

    Independently certified for information security and data protection.

  • EU data residency

    Customer data is processed and stored in the EU.

  • No retention, no training

    Zero data retention contracts with Stellar’s LLM providers ensure data is never retained or used for training.

  • Layered, deterministic safety

    Deterministic safety layers and LLM-as-a-judge work together to block prompt injection, abuse, and off-policy responses.

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FAQ

Frequently asked questions.

What can a Stellar chat agent actually do?

Stellar chat agents go beyond answering questions. They take real action in your systems. They authenticate the customer, look up orders, modify accounts, process returns, send confirmation emails. The agent doesn’t just deflect; it resolves end-to-end.

How does the chat agent access our knowledge base?

Stellar connects to your existing helpdesk or knowledge management system through pre-built connectors, or our team can build a custom one. You can also add and manage knowledge documents directly inside Stellar Studio.

Can the chat agent connect to our existing systems?

Yes. Stellar connects to your CRM, ticketing system, and internal APIs out of the box. The agent can look up customer data, trigger workflows, and write back to your systems mid-conversation. See the integrations section above for supported platforms.

What happens when the agent can’t resolve a request?

The agent can hands off the conversation to a human employee that can continue the conversation in the same chat window. Your employees receive a generated conversation summary plus the full transcript and the history of actions already taken by the agent agent, allowing them to pick up exactly where the AI left off without the customer having to repeat themselves.

What languages does the chat agent support?

Stellar supports 50+ languages out of the box, including the most common European and Asian languages. The agent detects the customer’s language and responds in it with consistent quality.

How long does it take to go live?

Most customers go live within weeks. Stellar’s team can help you with initial agent design, integrations, and rollout, including running side-by-side evaluations against your existing chat before full deployment.

Is my data secure?

Yes. ISO 27001 certified, GDPR compliant, EU data residency, zero data retention contracts with our LLM providers. Your conversations are never used to train models. See the Security section above.

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