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1<meta name="next-size-adjust" content=""/><title>Zerin - Todo App</title><meta name="description" content="A multi-tenant todo application"/><link rel="icon" href="/favicon.ico?favicon.0b3bf435.ico" sizes="256x256" type="image/x-icon"/>

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1</head><body class="geist_a71539c9-module__T19VSG__variable geist_mono_8d43a2aa-module__8Li5zG__variable antialiased"><div hidden=""><!--$--><!--/$--></div><div class="min-h-screen flex flex-col bg-black text-white"><header class="border-b border-white/20"><div class="max-w-4xl mx-auto px-4 py-4 flex items-center justify-between"><a class="text-xl font-mono font-bold tracking-tight hover:text-white/80" href="/">ZERIN</a><div class="flex items-center gap-4"><a class="text-sm text-white/70 hover:text-white font-mono" href="/install">Install</a><a class="text-sm text-white/70 hover:text-white font-mono" href="/troubleshooting">Help</a><a class="text-sm text-white/70 hover:text-white font-mono" href="/login">Sign in</a></div></div></header><main class="flex-1 max-w-4xl mx-auto px-4 py-12 w-full"><h1 class="text-4xl md:text-5xl font-mono font-black tracking-tighter mb-4">INSTALL</h1><p class="text-white/50 font-mono mb-4">Add Zerin to your MCP client in seconds.</p><p class="text-white/30 font-mono text-sm mb-12">Pick your tool below. You only need to set up one.</p><section class="mb-16"><div class="flex flex-wrap gap-2 mb-6"><button class="px-4 py-2 font-mono text-sm border transition-colors bg-white text-black border-white">Claude Code</button><button class="px-4 py-2 font-mono text-sm border transition-colors bg-transparent text-white/70 border-white/20 hover:border-white/40 hover:text-white">Claude Desktop</button><button class="px-4 py-2 font-mono text-sm border transition-colors bg-transparent text-white/70 border-white/20 hover:border-white/40 hover:text-white">Cursor</button><button class="px-4 py-2 font-mono text-sm border transition-colors bg-transparent text-white/70 border-white/20 hover:border-white/40 hover:text-white">Windsurf</button><button class="px-4 py-2 font-mono text-sm border transition-colors bg-transparent text-white/70 border-white/20 hover:border-white/40 hover:text-white">Zed</button><button class="px-4 py-2 font-mono text-sm border transition-colors bg-transparent text-white/70 border-white/20 hover:border-white/40 hover:text-white">JetBrains</button><button class="px-4 py-2 font-mono text-sm border transition-colors bg-transparent text-white/70 border-white/20 hover:border-white/40 hover:text-white">ChatGPT</button></div><div class="bg-white/5 border border-white/20 p-6"><div><h3 class="text-xl font-mono font-bold mb-4">Claude Code</h3><p class="text-white/50 font-mono mb-4">Add to all projects (user scope):</p><div class="bg-black/50 border border-white/10 p-4 font-mono text-sm overflow-x-auto mb-4"><code class="text-green-400">$</code> <code>claude mcp add zerin --transport http <!-- -->https://zerin.xkenneth.workers.dev</code></div><p class="text-white/50 font-mono mb-4">Or add to current project only (project scope):</p><div class="bg-black/50 border border-white/10 p-4 font-mono text-sm overflow-x-auto"><code class="text-green-400">$</code> <code>claude mcp add zerin --transport http <!-- -->https://zerin.xkenneth.workers.dev<!-- --> --scope project</code></div><p class="text-white/30 font-mono text-sm mt-4">Project scope creates a <code class="text-white/50">.mcp.json</code> file you can commit to share with your team.</p></div></div></section><section class="mb-16 pt-8 border-t border-white/10"><div class="flex items-center gap-3 mb-4"><h2 class="text-2xl font-mono font-bold">API Key Auth</h2><span class="px-2 py-0.5 bg-white/10 text-white/70 text-xs font-mono rounded">Optional</span></div><p class="text-white/50 font-mono mb-4">Skip OAuth by using an API key. Create one on the<!-- --> <a class="text-white underline hover:text-white/80" href="/keys">API Keys page</a>, then add the header to your config.</p></section><section class="mb-16"><h2 class="text-2xl font-mono font-bold mb-4">Available Tools</h2><div class="grid grid-cols-1 md:grid-cols-2 gap-4"><div class="bg-white/5 border border-white/20 p-4"><code class="text-green-400 font-mono">list_todos</code><p class="text-white/50 font-mono text-sm mt-1">List all your todos</p></div><div class="bg-white/5 border border-white/20 p-4"><code class="text-green-400 font-mono">create_todo</code><p class="text-white/50 font-mono text-sm mt-1">Create a new todo</p></div><div class="bg-white/5 border border-white/20 p-4"><code class="text-green-400 font-mono">update_todo</code><p class="text-white/50 font-mono text-sm mt-1">Update an existing todo</p></div><div class="bg-white/5 border border-white/20 p-4"><code class="text-green-400 font-mono">delete_todo</code><p class="text-white/50 font-mono text-sm mt-1">Delete a todo</p></div></div></section><section class="mb-16"><h2 class="text-2xl font-mono font-bold mb-4">Usage</h2><p class="text-white/50 font-mono mb-4">Just ask naturally:</p><div class="space-y-2 font-mono text-sm"><div class="bg-white/5 border border-white/20 p-3">&quot;Show me my todos&quot;</div><div class="bg-white/5 border border-white/20 p-3">&quot;Add a todo to review the PR&quot;</div><div class="bg-white/5 border border-white/20 p-3">&quot;Mark the first todo as done&quot;</div></div></section><section class="mb-16"><h2 class="text-2xl font-mono font-bold mb-4">

1Having Issues?</h2><p class="text-white/50 font-mono mb-4">If you&#x27;re running into problems with authentication, connection, or errors:</p><a class="inline-block px-6 py-2 bg-white/10 border border-white/20 text-white font-mono hover:bg-white/20 transition-colors" href="/troubleshooting">View Troubleshooting Guide</a></section><div class="text-center pt-8 border-t border-white/20"><p class="text-white/50 font-mono mb-4">Ready to go?</p><a class="inline-block px-8 py-3 bg-white text-black font-mono font-bold hover:bg-white/90 transition-colors" href="/login">SIGN IN TO GET STARTED</a></div></main><footer class="border-t border-white/20 py-6"><div class="max-w-4xl mx-auto px-4 text-center text-white/30 text-sm font-mono">MCP-native todo management</div></footer></div><!--$--><!--/$-->

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