Etraveli opens a Flight MCP: seats and bags in the chat, payment on a hosted page

Another large flight seller now answers AI agents directly. On Oct. 28, 2026, Etraveli Group announced Flight MCP, a Model Context Protocol (MCP) server that opens its flight booking engine to Claude, ChatGPT, and other MCP-compatible clients. Etraveli powers Booking.com flights and says it is the largest flight fulfilment partner of Skyscanner. PhocusWire covered the launch the same day.

What Etraveli launched

Per the announcement and Etraveli’s AI Solutions page:

• Search and compare. Real-time flight search and fare comparison across 550+ airlines in 75+ markets, including Etraveli’s virtual interlining.
• The booking flow in the chat. Fare selection, passenger details, seats, and luggage are handled in the conversation.
• Payment off the chat. The traveller opens a hosted payment page to pay by card or a local method. Bookings are made through Etraveli’s Flightnetwork brand, which emails the confirmation and handles changes, cancellations, and refunds.
• Standard connection. MCP over streamable HTTP at mcp-b2bapi.etraveligroup.com/mcp, with OAuth 2.0 browser sign-in and no SDK.
• Free to search and price. Partners who want to take payment themselves, or let an agent book on the traveller’s behalf, need a commercial agreement with Etraveli.

Access goes through a request form. The terms listed on the AI Solutions page describe developer access as personal and for internal, non-commercial testing, evaluation, and prototyping, with rate limits by tier.

Why it matters for AI travel agent builders

Seats and bags are becoming tools on the flight server. Etraveli joins Sabre and TPConnects Iris in exposing air ancillaries next to the fare, rather than leaving them to a post-booking web page. In our map of travel MCP servers, ticket-linked extras like bags and seats are where airline-content servers already go deepest.

The hosted payment page is the confirmation step. Etraveli keeps card entry out of the chat: the agent assembles the booking, and the traveller pays on Etraveli’s page. That is a clean pattern for a first integration. It also means the agent’s own extras need a confirmation step of their own, because they will not ride on Etraveli’s payment page.

Everything after the ticket is still outside the server. Etraveli’s public materials stop at seats and luggage. A traveller on a long-haul trip may still want travel insurance, disruption cover, an eSIM, a lounge on a connection, fast track, and a transfer on arrival. Those come from different suppliers with different contracts, and an agent that books the flight through MCP will want them as tools too, not as links to five storefronts.

Servicing stays with the seller. Flightnetwork handles changes, cancellations, and refunds for flights booked this way. Builders should keep the same split clear for extras: who issued the policy, who supports the eSIM, and who refunds an unused lounge pass.

“Table stakes” is the new framing. Etraveli’s Andreas Marquardt told PhocusWire that MCP is “becoming table stakes” and that Etraveli wants to be the “flight infrastructure layer for AI and digital commerce.” Expect more flight and content providers to make the same move, which makes the non-flight shelf the part builders still have to assemble themselves.

Where Ancilair fits

Ancilair is the tool shelf an agent calls next to a flight server like Etraveli’s: insurance, disruption cover, eSIM, lounges, fast track, and transfers, exposed as MCP, REST, or CLI tools under one token. Each price is quoted on the call at the supplier’s rate with 0% markup, and paid calls run only after the traveller approves, with an idempotency key so a retry never buys twice. Recipes such as the Layover kit and Cover the trip show the pattern; setup notes for common hosts are on the agents page. For the full build, see Build an AI travel agent that fulfills ancillaries.

What to watch

• Whether Etraveli opens production access beyond testing terms, and on what commercial model.
• Whether more extras than seats and luggage, such as flexible tickets or cover, appear as tools.
• How agents that book on the traveller’s behalf, under a commercial agreement, handle explicit confirmation before payment.

Sources

• Etraveli Group: Etraveli Group opens its flight engine to AI agents with new Flight MCP (Oct. 28, 2026)
• Etraveli Group: AI Solutions, Flight MCP
• PhocusWire: Etraveli Group adds MCP layer to flight content (Oct. 28, 2026)

This is not an Etraveli Group announcement, and Etraveli Group did not review it. Details summarised from public sources as of October 29, 2026. Not legal advice.