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Programming Free

Parlant

Open-source framework for reliable customer-facing conversational agents

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PricingFree
Free planYes
Free trialYes
APIYes
Open sourceYes
DeploymentSelf Hosted
Last verifiedAugust 3, 2026
Overview

Tool overview

Parlant is listed under Programming AI tools.

Summary

What is Parlant?

Parlant is an Apache-2.0 conversational-agent framework that models behavioral guidelines, journeys, tools, glossary terms, context, and traces. It exposes APIs and production guidance for building controlled customer interactions that remain maintainable as complexity grows.

Best fit

Best for

Teams building controlled customer-facing agents with complex policies

Audience

Who is it for?

AI engineersConversational designersCustomer-experience teamsPlatform engineers
Recommendation

Decision note

Accepted with a 91/100 score for its distinct conversational-control approach, active official project, strong documentation, and clear value for customer-facing agents.

Capabilities

Key features

Behavioral guidelines defined as code

Structured journeys for multi-step conversations

Tool and OpenAPI service integration

FastAPI, React widget, Kubernetes, and OpenTelemetry support

Workflows

Use cases

Build controlled support agents

Guide onboarding and service journeys

Enforce domain and policy behavior

Deploy traceable conversational applications

Strengths

Pros

  • Free and open source under Apache-2.0
  • Strong focus on predictable behavior
  • Detailed production deployment documentation
Considerations

Limitations

Parlant improves behavioral consistency but cannot guarantee factual accuracy, compliance, or safe tool outcomes by itself. Teams still need validated knowledge, authentication, moderation, monitoring, representative tests, and human escalation.

Cost

Pricing details

Pricing modelFree
Free planYes
Free trialYes
Pricing context

Billing options

Open-source self-hosting; separate model and infrastructure costs

Pricing context

Pricing note

Parlant is free and open source under Apache-2.0. There is no time-limited product trial. Users separately pay for model APIs, databases, hosting, Kubernetes infrastructure, observability, and any implementation or support services.

View official pricing
Compatibility

Supported programming languages

  • English
Specs

Technical details

PlatformsWeb, API
Multilingual supportUnknown
Login requiredNo
Open sourceYes
LicenseApache-2.0
DeploymentSelf Hosted
CompanyEmcie
Editions / plansOpen-source framework
Data confidenceHigh
Last verifiedAugust 3, 2026
Documentation → Source code → Release notes → Data source →
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Answers

Frequently asked questions

Parlant is an Apache-2.0 conversational-agent framework that models behavioral guidelines, journeys, tools, glossary terms, context, and traces. It exposes APIs and production guidance for building controlled customer interactions that remain maintainable as complexity grows.
Teams building controlled customer-facing agents with complex policies
The listed pricing model for Parlant is Free. Pricing can change, so users should verify the latest plan details on the official website.
Yes. The current profile indicates that a free trial is available.
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