Chat Plus

Chat Plus

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Adapter-driven MCP orchestration for AI chat websites.

Chat Plus connects web chat UIs to MCP servers and Skills, reinjects system instructions when needed, executes tool workflows in a controlled sandbox, and continues the same conversation with the result.

Overview • Getting Started • Site Adapters • Code Mode • Development

Overview

Chat Plus is a browser extension for AI chat websites. It sits between the page, the extension runtime, and your MCP servers so a model can discover tools, call them, and continue the same conversation with the tool output.

The project is intentionally adapter-driven. Instead of baking host-specific logic into the extension core, Chat Plus uses one JavaScript adapter script per host. Each adapter is defined by one required `meta` block plus four required hooks: `transformRequest`, `extractResponse`, `decorateBubbles`, and `continueConversation`.

Here is a typical in-page usage view on a supported chat site, showing Code Mode cards and tool-result feedback rendered directly inside the conversation:

Example UI: Code Mode execution blocks and tool return status inside the chat conversation.

[!IMPORTANT] Chat Plus only works on tabs that have a valid site adapter. Site support lives in adapter scripts, not in the extension core.

[!IMPORTANT] Chat Plus connects remote `SSE` and `Streamable HTTP` MCP endpoints direc