# VecViz > A quantitative equity model published as MCP tools and a REST API: forecast targets and the events behind them, price-probability bands, correlation, model portfolios and a published track record. Free key in one call, no signup. ## Docs - [For agents](https://agents-vecviz.fly.dev/agents.md): how to get a key, how to connect, what each tool answers, what a call costs, and every refusal code. - [OpenAPI](https://agents-vecviz.fly.dev/openapi.json): the full REST schema. - [MCP server card](https://agents-vecviz.fly.dev/.well-known/mcp/server-card.json): tool names and input schemas, no key needed. ## Start - [Get a key](https://agents-vecviz.fly.dev/connect): `curl -sX POST https://agents-vecviz.fly.dev/connect` returns a free key covering 10 tickers. - [Subscribe](https://vecviz.com/signup): $39/month for the full universe.