Structured by default
Routes, dates, fares, and conditions follow a consistent format that agents can parse.
Ulysse Agents
100% freeFlight search, designed for AI agents.
Give Claude Code, Codex, Cursor, or any MCP-compatible agent access to Ulysse flight search, with no account or API key.
This page is also available in Markdown →agent / flights
You
Find me a round trip from Paris to London next month. Compare price and travel time.
Ulysse Agent
$ ulysse.search_flights(PAR, LON)
PARLON
Searching available fares and sorting the best options…
Works wherever your agent does
- Claude Code
- Codex
- Cursor
- OpenCode
- Gemini CLI
- Any MCP client
Designed for agents
Less interface. More useful answers.
Traditional booking pages are made for people to browse and click. Ulysse Agents removes that layer and gives your agent the structure it needs.
Token-efficient
Results keep only what matters (times, stops, baggage, and price) to leave room for your conversation.
No new interface
Use the MCP standard instead of a separate integration for each client.
How it works
From prompt to flights in three steps.
The same natural-language request works across all compatible agents. Ulysse turns it into a real search and returns options you can compare.
- 1
Ask naturally
Tell it your route, dates, cabin, and passengers in the conversation you’re already using.
- 2
Search for real flights
Ulysse searches available fares and presents each option in a consistent format.
- 3
Compare with clarity
Let your agent summarize the price, duration, stops, and trade-offs before you choose.
Setup
Add Ulysse to your agent with one command.
Ulysse runs a public MCP server over streamable HTTP. Add it to your client with a single command.
MCP server address
https://homer.ulysse.com/mcpClaude Code
claude mcp add --scope user --transport http ulysse https://homer.ulysse.com/mcpCodex
codex mcp add ulysse --url https://homer.ulysse.com/mcpGemini CLI
gemini mcp add --scope user --transport http ulysse https://homer.ulysse.com/mcpCursor
Add this server to ~/.cursor/mcp.json:
{
"mcpServers": {
"ulysse": {
"url": "https://homer.ulysse.com/mcp"
}
}
}Another client? Add a streamable HTTP MCP server with the address above.
Available tools
suggest_placesFinds the IATA codes of a city or airport.
search_flightsSearches live flights and returns the best offers with a booking link.
get_offerConfirms an offer's price and details its conditions and baggage.
find_cheapest_datesFinds the cheapest dates from recent fares.
Try it now
Copy. Paste. Take off.
No SDK needed. Start by giving your agent a clear request and ask it to compare the criteria that matter to you.
prompt.md
Use Ulysse Agents to find the best round-trip flights from Paris to New York from September 12 to 20 for one adult. Compare the top three options by total price, duration, and number of stops. Don’t book anything without asking me for confirmation.
Simple pricing
100% free to search.
Search for flights from your agent without adding another subscription. Standard ticket prices and fare conditions apply when you book.
- ✓Free flight searches
- ✓No extra subscription
- ✓Open MCP server, no API key
Questions
Everything you need to get your agent off the ground
Is Ulysse Agents really free?
Yes. Searching for flights with Ulysse Agents is free. Tickets are, of course, still subject to the displayed price and applicable fare conditions.
Which agents are compatible?
Claude Code, Codex, Cursor, OpenCode, Gemini CLI, and any MCP-compatible client can use Ulysse Agents.
What is MCP?
MCP, or Model Context Protocol, lets compatible agents use external tools in a standard way. This means Ulysse Agents works right in your conversation with your agent.
Can an agent book a flight for me?
No. Ulysse Agents searches and compares flights. To book, your agent gives you a link to ulysse.com, where you check the flight and pay yourself.
Your next flight starts with a prompt.
Give your agent a destination and dates. Ulysse handles the flight search in a format it understands.