I use AI models every day — Claude for coding, GPT for writing, DeepSeek for reasoning, Gemini for quick lookups. Each one has its strengths, and I want access to all of them. But here's the problem: every provider means a separate account, a separate API key, separate billing. Managing five different API keys across different projects gets old fast. I recently found a setup that solved this for me: an open-source AI agent paired with an API gateway. One key, one config, access to everything. Here's how it works. Hermes Agent: An Open-Source AI Agent That Actually Works Hermes Agent is built by Nous Research. It's a terminal-based AI agent, but don't let that undersell it — this thing is genuinely useful for daily work. What makes it stand out: Solid terminal UX. Multi-line editing, autocomplete, streaming responses. It feels like a proper tool, not a toy. Multi-platform messaging. Beyond the CLI, it connects to Telegram, Discord, Slack, and WhatsApp.…