# Car Rental Brain Muse connector

From musedirectory.ai, the independent directory of Meta Muse connectors. Not affiliated with Meta.

## Car Rental Brain

Compare real car rental costs at 120+ airports including fees, deposits, and debit card policies.

- Record: https://musedirectory.ai/connector/car-rental-brain
- Category: Travel
- Developer: Jimi Walters (https://carrentalbrain.com/ai/)
- Muse status: Extra setup. Not in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
- Health: Working, 543ms, checked 2026-10-29T15:16:17Z
- Endpoint: https://app.carrentalbrain.com/mcp
- Auth: No account needed; Pricing: unknown
- Screening: Screened, no issues found (2026-10-29T15:16:17Z)
- Source: Found in the official MCP Registry (com.carrentalbrain/car-rental-brain) https://registry.modelcontextprotocol.io/v0/servers?search=com.carrentalbrain%2Fcar-rental-brain

Shows the true cost of car hire at major airports worldwide: base price, second driver fees, insurance, deposits, debit card acceptance, and desk hours. Compares suppliers and airports to find the cheapest option for your dates and needs.

Example request: "What's the cheapest airport to rent a car in Spain next March, and how much will a second driver add?"

How to connect: Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use Car Rental Brain to help me. It is a free service with an MCP server at https://app.carrentalbrain.com/mcp. It does not need an API key. Ask me before you share anything with it." Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.

Tools:
- get_capabilities: What Car Rental Brain measures, how fresh it is, and which airports/countries are covered.
- list_airports: Airports we measure, with the typical rental price per day. Filter by country.
- airport_costs: The true cost of hiring a car at one airport: per-day price for the car alone, with a second driver, with full cover, automatic, no-deposit (from + typical); by pick-up month; second-driver fees; deposits; debit-card acceptance; desk closing times and out-of-hours fees; policies.
- compare_airports: Rank airports by real cost (car only / with driver / with cover), typical deposit, debit-card friendliness or late desk hours. 'Where in Spain is car hire cheapest in March?'
- supplier_terms: Per supplier at an airport: typical price per day, second-driver fee, full-cover price, deposit held, whether the desk takes a debit card, and customers' desk review scores.
- build_search_link: A link for the PERSON to open: live prices for their exact dates and needs, ranked by the total they will actually pay, where they can book. Always give this to the person.

Screening checks:
- MCP handshake: pass (Answered in 543ms)
- Domain against threat feeds (Cloudflare security DNS): pass (app.carrentalbrain.com, carrentalbrain.com not flagged)
- Published packages against the OSV malicious-package database: n/a (No npm or PyPI package published)
- Hidden instructions or invisible characters in tool text: pass (6 tools read, nothing found)
- Inputs asking for passwords, card numbers or seed phrases: pass (None found)
- Domain and redirects: pass (No redirects off the domain)
- AI review of purpose and tool behavior: pass (No concerns)