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Brij Air Offer Details
x402shopping
Brij Air Offer Details is a paid API for AI agents from travel.brij.fi, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-12).
Re-fetches a flight offer from the original supplier to return the current price, expiry, available ancillary services (bags), and the full fare-brand menu for that flight.
Price / call$0.01
Success—
StatusUnknown
How this service works
Paid x402 endpoint: $0.01 USDC for fastbooking: offers, $0.10 USDC for offers from a browser tier (trip.com:, ryanair:) — reading their fare menu costs a real browser session at the supplier — the PAYMENT-REQUIRED challenge always quotes the applicable price. fastbooking: offers — re-fetches the offer from the flight provider and returns it in the same shape as search results, with CURRENT price and expires_at, plus available_services: the purchasable extras (checked bags with weight limits and prices) on that exact fare. fare_options lists EVERY fare of this flight (same aircraft, every brand: Basic, Standard, Flex…), fresh from the supplier and price-ascending, each with its own bookable offer_id — including fares the search left out of its page. Pick the row you want and pass its offer_id to POST /air/intents. browser-tier offers (trip.com:, ryanair:) — return the offer with fare_options filled from the supplier's own fare menu: per fare, the price, cabin, seats_left, and conditions[] (the supplier's verbatim wording for baggage allowances and refund policy — {type, text} pairs such as CARRY_ON, CONSIGN, UN_REFUND). Each fare row carries its own bookable offer_id ('<tier>:<flight>##<n>', e.g. 'trip.com:2026-11-07T20:35|2026-11-07T21:55|FR##1') and fare_index: create the intent on that offer_id to book THAT fare - the escrow prices at the fare, and the fulfiller selects the same menu index at the supplier. The fare menu must be fresh (re-drill after ~30 min: 409 fare_menu_expired). Expect 20-45s on a cold read; 202 fares_pending means the menu is still being fetched and nothing was charged — wait for the Retry-After header (15s) and send the same request again: it returns the finished result. Do not treat a 202 as the offer. Results are cached ~5 min per offer_id, so repeats are instant and free of supplier load. Use it to (1) answer "how much is an extra bag on this fare?" or "is this browser-tier fare refundable?" — the ancillary/conditions questions search results cannot answer — and (2) revalidate a single offer minutes after a search, which is cheaper and quota-friendlier than re-searching. A stale or unknown offer_id returns 404 and the payment is never settled: refusals cost nothing. Offers expire roughly 20-30 minutes after search; on 404, re-search. Services are informational only: this API books the fare as-is and cannot add services to the order.
Output
Returns the refreshed offer object with current total price, expires_at timestamp, available_services (purchasable extras such as checked bags with weight limits and prices), and fare_options — the full fare-brand menu for that specific flight from the supplier, price-ascending, each with its own bookable offer_id, cabin class, seats_left, and conditions.
Example use cases
Confirm price before booking
“I found a flight from London to Barcelona earlier — offer ID is fastbooking:off_000XYZabc123. Can you re-check the current price and confirm it's still valid before I commit to booking it?”
Compare all fare tiers on a flight
“For that Rome to Amsterdam flight I searched — offer fastbooking:off_000RTAmst456 — can you pull up every available fare brand like Basic, Standard, and Flex with their current prices so I can decide which one to book?”
Check baggage add-on options
“I'm about to book offer fastbooking:off_000LHRbag789 for my flight to New York — can you tell me what checked bag options I can purchase, including the weight limits and prices for each?”
Technical details
Endpoint
POSThttps://travel.brij.fi/air/offer-details?utm_source=zero.xyzWhen to prefer
Use this endpoint immediately before booking a flight to confirm the offer is still valid, get the live price, and enumerate all fare brands and ancillary options. Essential when you want to let the user pick a different fare tier (e.g. Flex instead of Basic) or add checked bags before calling POST /air/intents. Also use it when search results are stale or when you need the full fare menu that search may have omitted.
Side effects
- Offer expired or no longer available at the supplier — returns error indicating the offer is stale
- Invalid or malformed offer_id — returns validation error
- Supplier is temporarily unreachable — timeout or upstream error
- Browser-tier offers (trip.com, ryanair) may take longer and cost $0.10 due to real browser session requirement
- Payment not included or insufficient — returns 402 Payment Required with applicable price quoted
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| offer_idrequired | string | id from POST /air/search. |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| offerrequired | — | The offer re-fetched live: total_amount and expires_at are CURRENT, unlike a minutes-old search result. |
| available_servicesrequired | array | Purchasable extras with prices. Empty array = the airline offers none on this fare (an answer, not missing data). |
Tags
x402shopping
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