Spec Driven Development
by formulahendry
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Runs on your computer★ 440MITUpdated 14 months ago
Install
60fps
Overview
Description from the maker (original English)
Real iOS interaction clips, motion breakdowns, SwiftUI to match. Paid licence required.
PopNx MCP’s three pillars
These three are never merged into one score: opinions, measurements and popularity are different things.
- User voiceiNo reviews yetReviews open together with accounts in a later step
- Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
- UsageiNot measured yet★ –
What you can do with it
We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.
- Connection: Runs in the cloud
- Transport: Streamable HTTP
- Category: Other
Install
Pick the AI app you use, then copy the settings.
Before you install
- Basic checks: 1 of 1 passed
- Runs on the maker’s server: what you ask it goes through their server.
- The registry lists no key to fill in.
You need
- Runs in the cloudNothing to install; it connects over the internet
Which app do you use?
Pick your app above. We remember it, so next time the button says “Install in …”.
Works in Claude on the web, desktop and mobile:
- Open Settings → Connectors
- Press Add custom connector
- Paste the address below and press Add
- If it asks you to sign in, sign in with the maker
https://mcp.60fps.design/mcpRun this in your terminal
claude mcp add --transport http library https://mcp.60fps.design/mcpOr copy the settings yourself
Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"library": {
"url": "https://mcp.60fps.design/mcp"
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
Or copy the settings yourself
Paste into .vscode/mcp.json in your project
{
"servers": {
"library": {
"type": "http",
"url": "https://mcp.60fps.design/mcp"
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
ChatGPT connects only to servers on the internet:
- Open ChatGPT on the web → Settings → Connectors (Apps)
- Press Create or Add (some plans need Developer mode under Advanced first)
- Paste the address below, give it a name and save
- If it asks you to sign in, sign in with the maker
https://mcp.60fps.design/mcpMenu names can differ slightly by plan and over time.
Your choice stays on this device in a cookie; no account needed.
These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.
What it can do
We have not read this server’s tool list yet; we check endpoints in rotation.
Basic checksi
We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026
- ✓ Pass
Maker matches the repo
The registry name was verified against the domain 60fps.design (the registry checks domain ownership)
- … Not checked yet
Still maintained
We have not read this repo from GitHub yet
- … Not checked yet
Has a licence
We have not read this repo from GitHub yet
- … Not checked yet
Endpoint responds
Not checked yet; we check endpoints in rotation
- … Not checked yet
Sign-in with OAuth
Not checked yet; we check endpoints in rotation
- … Not checked yet
No hidden instructions in tool descriptions
Not checked yet; we read the tool list when we check the endpoint
Compared with others in Otheri
- More stars than 0% of the other 32537 servers in this category
- Published to the registry more recently than 22% of the other 32537 servers in this category
- Basic checks equal to or better than 100% of the other 32537 servers in this category
Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.
Common questions
Is 60fps safe?
It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.
What keys or codes does it need?
The registry does not list a required key, though some servers ask you to sign in on first use.
Does it run on my computer or in the cloud?
It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.
Is it still maintained?
The GitHub repo last changed –, and the latest version (1.0.0) reached the registry 3 months ago.
Which apps can use it?
Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.
What can I use instead?
In the same category: Spec Driven Development, Remote Desktop Commander, TF Rooms
Alternatives
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Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
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README from the maker
Open the README
Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.
60fps
Describe the motion you want. Get back a real iOS clip that does it, and a SwiftUI file that recreates it.
The library holds 2,000+ interaction clips from apps that shipped. Each one comes with a written breakdown of its motion: the start state, the transition, the end state, and the timing and easing behind it. Use it instead of guessing numbers.
What you get
| Tool | What it does |
|---|---|
60fps_search_shots | Semantic search. Describe the motion, not keywords. |
60fps_list_filters | Every filter the library uses, for exact search filters. |
60fps_get_shot | One shot in full, with keyframes. |
60fps_get_motion_breakdown | Start, transition, end, plus timing and easing. |
60fps_get_motion_code | A self-contained SwiftUI file for that shot. |
60fps_get_related_shots | For when the first pick is close but not right. |
Skills come with it. Each one teaches the agent a bigger job, using the same tools:
find-animation-opportunitiesanswers "where should my app animate?". The agent reads your SwiftUI code, finds the few moments where motion helps, flags motion that is broken or overdone, says what to leave still, and recommends real shots to copy for each.motion-systemgives the app one set of timings, springs and haptics in a singleMotion.swift, based on your own code and on real apps with the same feel.feedback-statesdesigns the loading, success, empty, error and retry states of one feature, with the motion, haptics and words for each.motion-specturns a shot into a handoff spec a developer can build from, with the timing taken from the shot's recreation and judgement kept apart.motion-referencetells the agent when to use the library and when to leave it alone.
None of them changes your code until you say so.
Any coding agent (Claude Code, Cursor, Codex and more) can add the skills on their own:
npx skills add 60fps-Design/pluginThat adds the skills only. Connect the server as below so they can use it.
Install
The server is hosted, so there is nothing to run locally. Signing in opens OAuth in your browser.
- Cursor: add the server from Settings > MCP with the URL below, or copy mcp.json.
- Grok Build: add the server by URL.
- Gemini CLI: install this repo as an extension.
gemini extensions install https://github.com/60fps-Design/plugin- Claude Code: add this repo as a marketplace, then install the plugin.
/plugin marketplace add 60fps-Design/plugin/plugin install 60fps@60fps-design
Or skip the plugin and add only the server: claude mcp add --transport http 60fps https://mcp.60fps.design/mcp
- Anything else that speaks MCP: point it at
https://mcp.60fps.design/mcpover streamable HTTP. See mcp.json.
You need a 60fps licence key: a 60fps MCP key, or a 60fps PRO key bought on or before 12 Sep 2026. PRO bought after that date does not include the MCP. Without a key the tools connect but return a 401. That is intended, not a fault.
Use it with Xcode
Xcode 26.3 and later ship their own MCP server, so an agent can drive the build system, the Simulator, Previews and the debugger. Point that agent at 60fps at the same time and the loop closes: it finds a real interaction, reads the motion breakdown, writes the SwiftUI, builds it, and looks at the result.
Xcode launches the agent for you, with its own tools already wired in:
xcrun mcpbridge run-agent claudeAnything you have installed in that agent comes along, so with this plugin the session has both toolsets. A prompt like "find how Threads does pull to refresh, then build it in this project and show me the Preview" is one agent turn rather than three tools and a copy and paste.
xcrun mcpbridge --help lists the rest, including --no-xcode-tools to leave Xcode's tools out and run-agent skills export to dump the skills Xcode ships. The bridge needs Xcode open on a project, and agent access enabled in Xcode's settings, before it will hand anything over.
What it covers
iOS only, and motion only.
It will not help with Android, Material, Flutter, React Native or web. It will not design icons, palettes, logos or brands. It has nothing to do with frame-rate profiling, which shares the name and nothing else. The skill tells the agent to answer those directly instead of searching.
Search always returns something, because it ranks the whole library by closeness. Judge the results on their merits, not on how many were searched.
About the code
Each file is standalone. Paste it into Xcode and run it.
It carries none of the original app's words, colours, branding or assets, by design. Restyle it to your own design system. The motion is the part worth keeping.
Links
mcp.60fps.design sets no cookies and runs no analytics. It makes exactly one outbound third-party request, for storyboard frames from Framer's image CDN, and sends nothing about the caller.
Licence
MIT, for this repository only: the manifests, the skill text and the logo.
It does not license the 60fps library, the hosted service, or the clips and code they return. Those stay under the terms.