Assistant

This isn't a plain chatbot. A language model runs a plan → act → observe loop: for each message it decides, one step at a time, whether to call a deterministic tool or answer directly. The facts come from the tools, not the model — so the numbers, dates and sources are trustworthy. Expand the ⚙ Reasoning panel under any answer to see exactly which tools ran.

• Math — a separate SymPy process solves, differentiates, integrates & more. Results are computed, never guessed.
• Portfolio search — retrieval-augmented answers about Vladyslav's background & projects, with citations.
• Date / time — the real current time in any timezone.
• Network — subnet (CIDR) math and DNS lookups.

MCP. The deterministic tools above (math, date/time, network) are also exposed as a Model Context Protocol server, so you can call them from Claude Desktop, Claude Code, or any MCP client. They use no LLM or API key, so that part is free and unlimited — see the mcp-server in the repo for setup.

Free-tier limit. It runs on Google's free AI API — about 20 model requests per day, shared by everyone. Each message can use several requests, so expect roughly a handful of questions per day site-wide. When the limit is reached the assistant shows a “free usage limit reached” notice and resumes the next day (resets at midnight US Pacific). No paid billing is attached, so the cap simply pauses the AI — it never incurs a charge.

Open source: github.com/vladislavtaran/ai-assistant-math-agent