Mantle
Orchestrator at the core of the Rasa Platform that runs agents written as natural-language skills: it picks the active skill, hands off between skills, calls tools, keeps memory, and enforces guarantees such as required values or exact wording, on chat and voice alike.
What it does
- Agent orchestration
Features 3
- Guarantees & GuardrailsFramework-enforced guarantees such as required values, confirmation steps, exact wording and strict sequences.
- Skill orchestrationChooses which skill is active, hands off between skills, calls tools and tracks what it has learned.
- Chat and voice supportThe same skill runs on chat and voice conversations, with voice-specific handling of speech and interruptions.
Sources
- Pricing
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The pricing page lists Free Developer Edition and Enterprise for the Rasa Platform and does not name Mantle; the getting-started guide asks for a Rasa license key without saying which edition. No price for Mantle is stated.
- Description
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Official documentation · 11 Oct 2026
"Mantle runs the conversation: choosing which skill is active, handing off between them gracefully, calling your tools, and keeping track of everything"; framework-enforced guarantees: "a required value, a confirmation step, exact wording, a strict sequence".
- What it does
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Official documentation · 11 Oct 2026
"Mantle combines agentic conversation with skills, tools, memory, and reliable guardrails."
- Sold within
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Read the Platform page, the Mantle docs home and getting-started guide, and the pricing page: Mantle is called the orchestrator of the Rasa Platform and needs a Rasa license key, but no page states which editions include it.
- Name
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Official documentation · 11 Oct 2026
Platform page: "Introducing Mantle | Rasa's new orchestrator at the core of your agent factory".
- URL
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Official documentation · 11 Oct 2026
Mantle's own documentation site, linked from the Rasa Platform page ("Mantle docs") and the Rasa Pro changelog banner ("Meet Mantle, the new orchestrator for the Rasa Platform.").
- Deployment
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Official documentation · 11 Oct 2026
Installed into the customer's own Python environment and project folder.
- Interfaces
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Official documentation · 11 Oct 2026
Installed with pip and driven from a terminal setup wizard that trains the agent and opens the Inspector.
- Modalities
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Official documentation · 12 Oct 2026
Page: 'The same skill runs on chat and voice conversations'.
- Intended for
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Official documentation · 11 Oct 2026
For teams building voice and chat AI agents.
Also from Rasa
-
Rasa Platform Agent platform
Platform for product and engineering teams to build, test, deploy and govern their own customer-facing AI agents across voice and text channels, with a free developer edition.
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CALM Platform
Rasa's dialogue engine (Conversational AI with Language Models): an LLM interprets what the user wants while versioned, deterministic flows decide what the agent does, with built-in repair when users change topic or backtrack.
-
Rasa Studio Application
Self-hosted no-code workspace where non-developers visually build Rasa assistant flows, manage response content and test changes, exporting the assistant as code for the development team.
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Rasa Voice Agent platform
Rasa Voice provides infrastructure for real-time voice agents with turn-taking, interruptions, and rephrasing.
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