# Duffel

**Canonical:** https://apis.io/providers/duffel/  
**Website:** https://duffel.com  
**APIs profiled:** 10

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.

## Kin Score — 35.5 / 100 (thin)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 35.5).

| Facet | Score |
|---|---|
| Discoverability | 74.1 |
| Contract Quality | 52.0 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 23.7 |
| Developer Ergonomics | 23.8 |
| Commercial Clarity | 39.5 |
| Access Clarity | 39.5 |

Regulatory layer — **Payments**: 28.1 (matched via tags).

## Agent readiness — 31.1 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | documented |
| MCP Server | no |
| Auth Clarity | yes |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Paid · Self-serve signup — onboarding: self-serve, pricing: paid, trial: no (confidence: high).

## APIs (10)

- **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.

## Agentic access (1)

- **Duffel Agentic Access** — 39 operations · 21 acting

## Security (3)

- **Duffel Authentication** — http · 1 scheme
- **Duffel Domain Security** — TLSv1.3 · HSTS · DNSSEC · DMARC
- **Duffel Vulnerability Disclosure** — disclosure policy published

## Plans (1)

- **Duffel Plans Pricing**

## Tags

Travel, Flights, Hotels, Booking, Payments

---

Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/duffel/). Scores are computed from the provider's own public artifacts under a published rubric.