Duffel · Rate Limits

Duffel Rate Limits

The Duffel API applies per-endpoint rate limits and returns HTTP 429 with a rate_limit_exceeded error when they are exceeded. Responses expose RateLimit-Limit, RateLimit-Remaining, and RateLimit-Reset headers describing the window. Limits vary by endpoint and account; in addition, a commercial search-to-book ratio (1500:1) governs how many searches are included before excess search fees apply. Specific per-endpoint numeric limits are not reconciled in this artifact.

Duffel Rate Limits is the machine-readable rate-limit profile for Duffel on the APIs.io network, in the API Commons Rate Limits shape.

It captures 2 rate-limit definitions, measuring requests and searches_per_order.

An exhausted limit returns HTTP 429.

This profile was written by API Evangelist and has not been verified against a page the provider published; treat every limit as unconfirmed until a dated transcription replaces it.

The profile also includes 2 backoff/retry policies defined and response codes documented for throttled.

Tagged areas include Travel, Flights, Hotels, Booking, and Payments.

2 Limits Exhausted: HTTP 429
Method: generated, dated 2026-06-25.
Written by API Evangelist on 2026-06-25 and not verified against a page the provider published. Treat every limit as unconfirmed until a dated transcription replaces it.
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TravelFlightsHotelsBookingPaymentsRate LimitingQuotasThrottling

Limits

Per-Endpoint Request Limit account
requests
see provider documentation
Limits vary by endpoint; reported via RateLimit-Limit / RateLimit-Remaining / RateLimit-Reset headers.
Search-to-Book Ratio account
searches_per_order
90001
Commercial ratio; searches beyond 1500 per confirmed order incur a $0.005 per-search excess fee.

Policies

Rate Limit Headers
Clients should read RateLimit-Limit, RateLimit-Remaining, and RateLimit-Reset to pace requests.
Backoff Strategy
On HTTP 429, implement exponential backoff with jitter and retry after the reset window.

Sources

Work with this as data

Every rate limit here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for rate limits

4 MCP tools reach this
  • find_rate_limitsBrowse and filter every rate limit in the catalog.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
This rate limit 
curl "https://apis.io/api/v1/rate-limits/duffel-rate-limits"
All rate limits 
curl "https://apis.io/api/v1/rate-limits?limit=25"

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