Fify

io.github.renfei-designPublished by GitHub account renfei-designv0.1.0Updated Oct 24, 2026

Turn grounded AI answers into trusted comparisons, plans, timelines, and decision views.

VerifiedStreamable HTTPWeb executableProductivity & WorkflowData & Analytics

Overview

AI-generated overview

Fify renders a grounded AI answer as an interactive comparison, plan, checklist, timeline or decision view, keeping the plain answer as fallback.

What you can do
Render a complete grounded answer as an interactive information view when structure or interaction helps, passing the authoritative plain answer alongside it and using user-supplied facts directly when sufficient. Read back the mounted widget's unseen frames through an app-only reader. The local compiler validates and renders material supplied by the host; it does not research or verify facts itself. Every call returns a complete plain-language fallback, and the inline interactive view appears only in hosts supporting the MCP Apps UI extension.
When to use it
Useful when an answer is better shown than told: comparing options by cost and risk, turning a rollout plan into a checklist, or laying milestones out as a timeline. Worth adding if the client supports the MCP Apps UI extension and you want structured decision views rather than plain text.
Requirements
A remote Streamable HTTP endpoint, or the bundled Codex plugin, which needs Node.js 20 or newer and no separate package install. No Fify account or end-user API key is required. The interactive view needs a host that supports the MCP Apps UI extension; otherwise only the plain-text fallback is returned. In ChatGPT, developer mode must be enabled and allowed by the account or workspace policy.
Before you install
The server performs no consequential actions and asks for no credentials, but it does render content supplied by the host, and the compiler does not verify facts or sources. Each host identity is limited to 20 successful renders per UTC day and two concurrent renders. The interactive view depends on host support, so results may fall back to plain text.

Installation

In SourceWeft

  1. Open Fify in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/io.github.renfei-design%2Ffify/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "fify": {
      "type": "http",
      "url": "https://fify-chatgpt.renfei1992.chatgpt.site/api/mcp"
    }
  }
}

README

Fify plugin marketplace

Fify turns grounded AI answers into trusted interactive comparisons, plans, checklists, timelines, and decision views. It preserves the complete plain-language answer as an authoritative fallback and performs no consequential actions.

[Fify rendering a grounded Steve Jobs timeline as an interactive information view inside Codex.]

This repository is a Git-backed marketplace for Codex. The plugin is self-contained: it requires Node.js 20 or newer, performs no separate npm or pnpm install, asks users for no Fify account or end-user API key, and runs a bundled deterministic information-view compiler locally.

Install in Codex

bash
codex plugin marketplace add renfei-design/fify-plugincodex plugin add fify@fify

Start a new Codex task after installation, then ask normally or tag @Fify:

  • Compare these options by cost and risk.
  • Make this rollout plan a checklist I can work through.
  • Show these milestones as a timeline.

The repository is the marketplace. No package installation, Fify account, or end-user API key is required.

Use with ChatGPT

This Git marketplace cannot be added directly as a user-defined ChatGPT marketplace. You can still use Fify in ChatGPT through a developer-mode MCP connection:

  1. Open Settings → Security and login and enable Developer mode.
  2. Open the ChatGPT Plugins page and select the plus button.
  3. Name the connection Fify and use the public MCP endpoint below.
  4. Review the discovered read-only tool, create the connection, and add it to a new chat.

https://fify-chatgpt.renfei1992.chatgpt.site/api/mcp

Developer mode availability depends on the user's account and workspace policy. Public discovery across ChatGPT and Codex requires publication to OpenAI's universal plugin directory. This repository is the Codex distribution source and the hosted endpoint is the direct ChatGPT connection source; neither makes Fify automatically discoverable in ChatGPT. See OpenAI's connection guide and plugin packaging guide.

Use from another MCP client

Fify also exposes a public Streamable HTTP MCP endpoint for compatible clients:

https://fify-chatgpt.renfei1992.chatgpt.site/api/mcp

The tool always returns a complete plain-language fallback. The inline interactive view requires a host that supports the MCP Apps UI extension.

See MARKETPLACE_LISTING.md for verified listing metadata, capabilities, limitations, and submission copy.

What is included

  • A Codex plugin manifest and Fify information-UI skill.
  • A bundled local MCP server with render_information_ui.
  • Product screenshots, activation evals, and reviewer cases.
  • Validation and end-to-end protocol smoke tests.
  • Official MCP Registry metadata for the public remote endpoint.

The local compiler does not research or verify facts. Codex supplies the grounded answer and sources, and Fify validates and renders that material. The bundled server limits each host identity to 20 successful renders per UTC day and two concurrent renders.

Verify locally

bash
npm run check

See BUILD_PROVENANCE.md for the public bundle boundary and SECURITY.md for reporting guidance.

License

Apache-2.0. Bundled dependency notices are in THIRD_PARTY_NOTICES.md.

Source: README.md at commit d93175f

Tools

2

render_information_ui

Render information as an interactive view

Render a fully grounded answer as a non-consequential interactive information view when structure or interaction materially improves it. Complete factual reasoning first and always pass the authoritative plain answer. If the user supplied sufficient facts, use them directly and invoke immediately without extra retrieval. For a named real-person profile, set profileSubject to the canonical name unless the user requests no image; Fify will perform a bounded trusted Wikimedia portrait lookup. Pre-resolved attributed Wikimedia or Openverse media may also be supplied, but never invent or guess media URLs.

ParametersmedialocalerequiredsourcesrequiredversionrequiredsectionsrequiredgroundedAnswerrequiredprofileSubjectoriginalRequestrequiredcontinuationStatesuggestedRefinementsrequired

read_information_ui_run

Read an information UI run

App-only unseen-frame reader for the mounted Fify widget.

ParametersrunIdrequiredafterSequencerequired

Version history

1
  1. v0.1.0LatestSep 16, 2026

Score

100% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • License10 pts