Atria MCP server + documentation refresh

The Atria MCP server is live, and the docs have been reorganized around our two products — the REST API and MCP.

Added

Atria MCP server

Point Claude, ChatGPT, Codex, or any MCP-capable client at https://api.tryatria.com/mcp (Streamable HTTP, OAuth) and let your agent work with Atria's ad-intelligence data through purpose-built tools — searching the ad and brand libraries, reading boards and ad accounts, transcribing videos, and generating images. See Quickstart and Available Tools to get started.

Improved

Documentation structure

Docs are now organized by product. Guides holds an API section (Quickstart, API Basics, Use Cases) and an MCP section; API Reference remains the auto-generated endpoint reference. The API Quickstart is now a quick three-step walkthrough, shared conventions (authentication, the response envelope) live once in API Basics, and the use-case recipes group their cURL/Python/Node samples into tabbed code blocks.