Duffel
Duffel provides a single REST API for selling travel - flights from 300+ airlines, 2M+ hotel properties (Stays), loyalty programmes, and merchant-of-record payments. The Duffel API exposes offer requests, offers, orders, seat maps, order changes and cancellations, payments, and Stays search-to-booking, with webhooks for asynchronous events.
Duffel publishes 10 API contracts indexed on the APIs.io network, including Ancillaries API, Offer Requests API, Offers API, and 7 more. Tagged areas include Travel, Flights, Hotels, Booking, and Payments.
Duffel’s developer surface includes authentication, documentation, engineering blog, and 10 more developer resources.
What this lets a business do 1
Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →
Kin Score
Markets this provider is in provisional
The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.
| Market | Position | Depth | Registered MCP server | Declares compatibility |
|---|---|---|---|---|
| Travel and Airline Distribution | coverage | 52.8 | - | - |
Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.
APIs 10
Individual APIs this provider publishes, each with its own machine-readable definition.
Duffel Ancillaries API
The Ancillaries API from Duffel — 2 operation(s) for ancillaries.
Duffel Offer Requests API
Search for flights by creating offer requests.
Duffel Offers API
Flight offers returned for an offer request.
Duffel Order Cancellations API
Cancel an existing order and preview refunds.
Duffel Order Changes API
Modify an existing order.
Duffel Orders API
Create and manage flight orders (bookings).
Duffel Payments API
Pay for held orders.
Duffel Seat Maps API
Seat maps for an offer.
Duffel Stays API
Accommodation search and booking.
Duffel Webhooks API
Register endpoints to receive event notifications.
Scroll for all 10
Open Collections 12
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
API Collection
OPEN COLLECTIONDuffel Ancillaries API
OPEN COLLECTIONDuffel Ancillaries Offer Requests API
OPEN COLLECTIONDuffel Ancillaries Offers API
OPEN COLLECTIONDuffel Ancillaries Order Cancellations API
OPEN COLLECTIONDuffel Ancillaries Order Changes API
OPEN COLLECTIONDuffel Ancillaries Orders API
OPEN COLLECTIONDuffel Ancillaries Payments API
OPEN COLLECTIONDuffel Ancillaries Seat Maps API
OPEN COLLECTIONDuffel Ancillaries Stays API
OPEN COLLECTIONDuffel Ancillaries Webhooks API
OPEN COLLECTIONDuffel API
OPEN COLLECTIONScroll for all 12
Pricing Plans 1
Published pricing tiers and plan structures.
Duffel Plans Pricing
PLANSRate Limits 1
Documented rate limits and quota policies.
Duffel Rate Limits
RATE LIMITSFinOps 1
Cost, billing, and metering signals for API financial operations.
Duffel Finops
FINOPSSecurity Posture 3
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
Recommended x-agentic-access execution contracts for AI agents.
Resources
Documentation 1
Reference material describing how the API behaves
Agent Surfaces 1
MCP servers, agent skills, and machine-readable catalogs
Build 1
SDKs, sample code, and the tooling you integrate with
Access & Security 3
Authentication, authorization, and security posture
Operate 1
Status, limits, changes, and where to get help
Commercial 2
Pricing, plans, and the legal terms of use
Company 3
The organization behind the API
Other 1
Properties that don't map to a standard resource type
Source (apis.yml)
Work with this as data
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