OctoTrip/rental-cars

Free, no-login MCP server for discovering and comparing rental cars with real-time pricing from multiple providers worldwide.
**MCP Streamable HTTP Endpoint:**
Related
- OctoTrip Flights — flight search MCP server
Affiliate Disclosure
OctoTrip is free to use. Booking links contain affiliate attribution -- OctoTrip may earn a commission at no extra cost to you. Search results are ranked by price within each car category, not by affiliate payout.
Quick Start
Add to your MCP client configuration:
No API key or login required.
Use with...
Claude Desktop
Install from the Claude Plugin Directory, or add manually to claude_desktop_config.json:
Cursor / Windsurf
Add to your MCP settings:
Cline
Add to your Cline MCP settings:
LobeHub
OpenClaw
Smithery
Install via Smithery:
Hermes Agent
Or add to ~/.hermes/config.yaml:
Stdio-only clients
For MCP clients that only support stdio transport:
curl / Protocol Example
A complete MCP session using curl (initialize, list tools, call search):
Transport: stateless streamable HTTP. Responses use text/event-stream (SSE). No session persistence or resumability. Rate limit: 1 request/second with burst capacity of 5.
Tool: search
Searches live rental-car offers for a pickup location and rental period. Returns available cars from multiple vendors grouped by category (economy, compact, SUV, etc.), showing the cheapest options in each. The tool queries external provider APIs in real time and may include affiliate booking links. It does not book cars, modify reservations, charge users, or store user data.
Parameters
| Parameter | Type | Required | Default | Description |
|---|---|---|---|---|
| location | string | yes | -- | Pickup location: city, airport, station, address, or landmark |
| pickup_date | string | yes | -- | Pickup date (YYYY-MM-DD, DD.MM.YYYY, or natural-language) |
| dropoff_date | string | yes | -- | Dropoff date, must be after pickup date |
| dropoff_location | string | no | same as pickup | Different dropoff location for one-way rentals |
| pickup_time | string | no | "12:00" | Pickup time in 24-hour HH:MM format |
| dropoff_time | string | no | "12:00" | Dropoff time in 24-hour HH:MM format |
| currency | string | no | "EUR" | ISO 4217 currency code (EUR, USD, GBP, etc.) |
| language | string | no | "en" | Response language code (en, de, etc.) |
| age | integer | no | 30 | Driver age, minimum 18 (younger drivers may incur surcharges) |
Response Format
Results are grouped by SIPP car category with the cheapest 2 options per group:
Error Responses
The server returns structured errors with suggestions:
- **location_not_found** -- location could not be resolved. Try a more specific name or airport.