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koishi Review

Koishi is a cross-platform, extensive, high-performance chatbot framework.

shipped Apr 17, 2026updated May 27, 2026aifreemium
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koishi - AI tool for koishi. Professional illustration showing core functionality and features.

Why it matters

1Offers a free tier for core functionalities.
2Provides a developer API for custom integrations.
3Supports over 10 mainstream chat platforms including QQ, Telegram, and Discord.
4Features a plugin marketplace with over 1000 official and community plugins.

Stork’s verdict on koishi

Koishi delivers extensive cross-platform chatbot compatibility and a rich plugin ecosystem, but its scale might be overkill for simpler projects.

koishi reviewed by Stork AI · stork.ai/en/koishi

About koishi

Business Model
Open Source
Target Audience
Developers and organizations looking to build chatbots.
API DocsOpen Source

Specs

API Docs

View Documentation →

GitHub

View Repository →

API Available

Yes, public API

overview

What is koishi?

koishi is a chatbot framework tool developed by the Koishi development team that enables developers and organizations to build extensive and scalable chatbot solutions across various mainstream chat platforms. It provides a robust system and a rich plugin ecosystem for developing large-scale interactive chatbot applications. Koishi collects information to personalize user experience, improve the site, and enhance customer service, implying usage for service improvement, though it does not explicitly state whether this involves training AI models. The framework is designed for both ease of use for non-programmers and advanced functionalities for experienced developers, supporting platforms such as QQ, Telegram, Discord, DingTalk, KOOK, Lark, LINE, Mail, Matrix, Slack, WeChat Official, WeCom, and WhatsApp. Recent development includes versions like Koishi 4.18.7 and 4.17.12, with a notable security incident on May 20, 2025, involving a malicious npm package, koishi-plugin-pinhaofa, which highlighted supply chain attack risks.

features

Key Features of koishi

Koishi is engineered to provide a comprehensive suite of features for chatbot development, emphasizing performance, extensibility, and developer experience. Its architecture supports a wide array of functionalities, from real-time monitoring to rapid prototyping, all built upon a robust TypeScript foundation. The framework's design facilitates the creation of both complex, large-scale interactive applications and lightweight assistant chatbots.

  • Cross-platform compatibility across over 10 mainstream chat platforms, offering unified interfaces and native experiences.
  • Extensive plugin marketplace with over 1000 official and community plugins for diverse functionalities including platform support, databases, and web consoles.
  • Real-time monitoring dashboard for continuous oversight of bot status and behavior.
  • Simple configuration options via a graphical user interface and a variety of plugins, enabling customization without extensive coding.
  • High-performance, multi-driven database designed to manage millions of data points efficiently.
  • Lightning Fast Preview (Sandboxes) for instant simulated chats and effect previews during plugin installation or configuration.
  • Full TypeScript support, providing top-tier type hints, rich code auto-completion, and enhanced developer productivity.
  • Hot Module Replacement (HMR) for plugin developers, allowing instant application of code changes without frequent reboots.
  • Seamless cross-platform account binding, enabling users to migrate data and maintain continuity across different chat services.

use cases

Who Should Use koishi?

Koishi is designed for a diverse audience, ranging from individuals with no programming background to experienced developers and organizations seeking to deploy sophisticated chatbot solutions. Its flexible architecture and extensive ecosystem cater to various chatbot development needs, from simple assistants to complex interactive applications.

  • Developers building scalable solutions for complex chatbot requirements across multiple platforms.
  • Organizations requiring cross-platform chatbot deployment for mainstream chat services like QQ, Telegram, and Discord.
  • Zero-based users looking to build chatbots quickly and efficiently using a console and graphical interface without programming knowledge.
  • Teams needing real-time monitoring and management capabilities for chatbot status and behavior.
  • Developers focused on rapid prototyping and testing of chatbot functionalities in a sandbox environment.

pricing

koishi Pricing & Plans

Koishi operates on a freemium business model with an open-source core, making its foundational framework freely accessible for development and deployment. While the project is open-source and available on GitHub, specific commercial plans or tiered pricing structures are not detailed in the available information. Users can leverage the extensive features and plugin ecosystem without direct monetary cost for the core framework.

  • Free tier available: Access to the open-source core framework and its functionalities.
  • Open-source core: Allows for free deployment, customization, and community contributions.

Similar Tools

koishi vs Competitors

Koishi positions itself as a modern, efficient, and cross-platform chatbot framework within a competitive landscape that includes other open-source and enterprise-grade conversational AI solutions. Its strengths lie in its extensive plugin ecosystem, developer-centric design with TypeScript, and broad cross-platform compatibility.

1
RasaOn StorkCompare

Rasa is an open-source framework that provides full control over the conversational AI stack, allowing developers to build highly customized and context-aware AI assistants.

Similar to Koishi as a framework, Rasa offers a free developer edition and is highly customizable, but it generally requires more machine learning and Python expertise for advanced use cases compared to Koishi's broader cross-platform approach.

2
BotpressOn StorkCompare

Botpress is an open-source conversational AI platform that combines a visual flow builder with modern LLM integration, enabling both low-code and pro-code development.

Botpress offers a freemium 'Pay-as-you-go' plan and provides a more visual, low-code interface alongside its open-source framework, potentially making it more accessible for less technical users than Koishi, while still offering extensive customization.

3
Google Dialogflow↗

Google Dialogflow is an enterprise-grade conversational AI platform that leverages Google's advanced natural language processing, offering both simpler (ES) and complex state-machine (CX) editions.

Dialogflow provides a robust, cloud-based managed service with strong NLP capabilities and deep integration into the Google ecosystem, offering a freemium model for its ES edition, which contrasts with Koishi's more framework-centric and self-hostable nature.

4
Microsoft Bot Framework↗

The Microsoft Bot Framework is a comprehensive, open-source SDK and set of tools for building enterprise-grade bots, deeply integrated with Azure services and offering extensive customization options.

Similar to Koishi in being a developer framework, Microsoft Bot Framework provides extensive SDKs and tools with a freemium model for basic usage, but it is more tightly coupled with the Microsoft Azure ecosystem and its associated services.

Visit koishi↗
Connect
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GitHubgithub.com/koishijs/koishi

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