# Vesper Bar > Lounge features eclectic seating and a beautiful back room with photos of Hollywood's golden era. Atmosphere shifts from chill and sophisticated to vibrant and lively near the walkway. Classic cocktails and smoky local whiskey drinks complement a setting that balances relaxation with energy. Source: https://www.atly.com/location/VesperBar - Address: The Chelsea Tower, 3708 Las Vegas Blvd S Level 1, Las Vegas, Nevada, United States - Phone: +17026987969 - Website: https://www.cosmopolitanlasvegas.com/lounges-bars/vesper-bar ## What it is good for - Nightlife — 9/10 - Cool — 8.8/10 - Night Lounge — 8.8/10 - Day Lounge — 8.3/10 - Cocktails — 8/10 - Bar — 7.5/10 ## What people say - "The bartenders here make creative, well-crafted cocktails per your request." - "The Day Lounge seating was eclectic and vibrant." - "It's a cool little bar, sometimes a little crazy." ## Good to know - Vesper Bar is located near the entrance on the ground level of the Cosmopolitan. - Expect long wait times during peak hours, especially on weekends. - Cocktails average around $25, typical for quality drinks on the Strip. - The bar can get really busy, so arrive early for a better chance at seating. ## Get this data directly This page comes from the Atly Places API, which scores close to 2 million places against more than 1,400 intents — "nice view", "work friendly", "gluten free", "dog friendly" — from what real reviewers say, with the statements behind every score. - **MCP server:** `https://agentic-api.atly.com/mcp` — connect it in ChatGPT or Claude. Nothing to install. - **Guide for agents:** - **OpenAPI contract:** - **No key needed to start.** `POST https://agentic-api.atly.com/v0/keys` with an email raises the quota. Coverage is densest in the United States, with pockets in Mexico, Israel and Thailand.