Duffel
Duffel scores 78/100 on xpay's Agent-Ready Index v2: partial pricing visibility; self-serve checkout is available; a public API exists with documentation; usage-based / per-token pricing is published.
Duffel pricing
Sign up, get an API key, pay per call
Self-serve checkout with public pricing — an autonomous agent can complete the purchase without a sales call.
4 SKUs priced in mixed units (order, order_value, ancillary…)
| Model / SKU | Input | Output |
|---|---|---|
Flight order fee Charged monthly per confirmed order | $3 / order | — |
Managed Content fee 1% of total order value per confirmed order | — | — |
Ancillary fee Charged per paid ancillary | $2 / ancillary | — |
Excess search fee Applies after 1500:1 search‑to‑book ratio | $0.005 / search | — |
How Duffel scores on the agent-ready dimensions
Public pricing visibility
15 / 15
Self-serve checkout
15 / 15
Public API + docs
16 / 20
Usage-based / metered pricing
20 / 20
Free entry path
0 / 7
No sales call required
7 / 7
Card / wallet / x402 payment
5 / 6
Machine-readable bonus (MCP / OpenAPI)
0 / 10
Total
78 / 100
What it actually costs at typical scale
10 flight orders and 5 ancillaries, no excess searches
$40/mo
Can an autonomous agent transact here?
Can create account
Can enter payment method
Can upgrade plan
Can buy more usage
Can cancel online
Payment methods
Human approval recommended
Pricing transparency
full
Purchase motion
self_serve
Demo required
Quote required
Annual commit required
Auto-renewal mentioned
Cancellation policy visible
Refund policy visible
Invoice payment available
Unknown
Purchase orders supported
Unknown
MSA required
Unknown
DPA available
Unknown
Security review required
Unknown
API & developer surface
API-first product
Sandbox present
Unknown
Webhooks
Unknown
MCP mentioned
Positioning & ecosystem
“Pay only for what you need.”
Buyer persona
Six-step check: can an agent actually buy from Duffel?
Discover price
Select a plan
Pay per task
Avoid a sales call
API docs without auth
Estimate cost upfront
Pros and cons for AI agents
Observational summary written by xpay from the signals captured on 2026-05-06. Not a review of the product — only of its current pricing posture for agent buyers.- Pricing is publicly visible on an indexable page — agents can read tiers without scraping past auth.
- Every advertised tier is self-serve; no tier requires scheduling a call.
- No per-unit price was advertised, so an agent has no way to estimate the cost of a single task.
- API documentation is gated or absent; an agent cannot inspect the integration surface without authentication.
- PPU requires account creation and an issued API key; a fully unauthenticated agent purchase is not yet supported.
- No /.well-known/ai-pricing.json or equivalent machine-readable pricing manifest is published — agents must rely on HTML scraping.
- The pricing URL did not render numeric tier data on the scoring date — possibly a router or sales-led landing page.
How Duffel could lift its score
Add a per-unit price (e.g. $X / 1K calls) to the pricing page so an agent can compute its own cost before committing.
| pricing_visible | false |
| headline_phrasing | Pay only for what you need. — APIs to components - everything you need to build your travel experience. |
| tier_count | 0 |
| lowest_paid_entry_usd | null |
| free_tier | false |
| free_tier_terms | null |
| per_unit_price | null |
| annual_required | false |
| self_serve_paid_tiers | 1 |
| sales_only_tiers | 0 |
| public_api_docs_url | https://duffel.com/docs |
| api_docs_auth_walled | false |
| ai_pricing_json_present | false |
| agents_txt_present | false |
| anonymous_purchase_path | false |
| per_unit_classification | {"unit_class":"query","confidence":"rejected","agent_task_price_forecastable":"no","rejected_reason":"reject-context word found within ±200 chars (seat/period/credit/etc.)","evidence_text":"$2.00per paid ancillaryExcess search"} |
| usage_headline_present | false |
| custom_tier_present | true |
| agent_friendly | {"ai_pricing_json":false,"agents_txt":false,"llms_txt":false,"sitemap_xml":false,"mcp_server_card":false,"agent_skills_index":false,"x402_supported":false} |
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See agent-ready picksDuffel
78
/ 100 (rubric v2.0)Travel Management
Pay only for what you need. — APIs to components - everything you need to build your travel experience.
0
No
Sales-led
1 / 0
Public
No
Not published
2026-05-09
Pay-as-you-go API
Duffel pricing starts at $3 per flight order; additional fees include 1% of order value for managed content, $2 per ancillary, and $0.005 per excess search, all billed per usage.
Sign up for API key
Discovery files and protocols
Side-channel signals — informational, not part of the score. Each protocol is independent; adoption signals the publisher is thinking about agent buyers.ai-pricing.json
agents.txt
llms.txt
sitemap.xml
MCP Server Card
Agent Skills
x402 / MPP
Compare Duffel with peers
Highest-scoring companies in the same category that an AI agent might evaluate as an alternative.Rydoo
67
SalesTrip
65
Routespring
60
TripEasy
57
Wanderium
55
Snapventure
55
Gateway
51
itilite
49
Explore the Agent-Ready SaaS Index
25,480+ SaaS scored on agent-buyability — browse by readiness band, category, or jump straight to a pay-per-run tool on xpay.tools.