An API surface engineers actually enjoy.
Cloud-native, microservices-based, API-first. IATA NDC-compliant REST APIs, typed SDKs, predictable latency, and documentation that works the way the team works.
Built on boring, scalable infrastructure.
Cloud-native on AWS
Multi-region active-active deployment with regional data residency for EU, US, and APAC.
Microservices on Kubernetes
Each capability is an independently-deployable service. Horizontal scale by load, not by guess.
API-first architecture
Every feature shipped as a documented REST API before it gets a UI. The console is just the first consumer.
RESTful & NDC-compliant
IATA NDC 21.3 schema across shopping, offers, orders, and servicing — with translation to ATPCO where required.
Encryption end-to-end
AES-256 at rest, TLS 1.3 in transit, per-customer keys with quarterly rotation.
Multi-language ready
EN, AR, FR, TR shipped natively across UI and content. More on the roadmap.
Typed SDKs
First-class TypeScript, Python, Go, Java, and Ruby SDKs.
Swagger-ready docs
OpenAPI specs for every endpoint with runnable examples.
Predictable latency
p95 budgets published per endpoint, honoured by SLO.
Webhooks with retries
Exponential backoff, signed payloads, dead-letter queues.
Versioning that respects you
Date-pinned versions, 24-month deprecation windows.
Sandbox + production
Identical APIs, isolated data, generous synthetic traffic.
From signup to first offer in under five minutes.
1. Install
npm install @ancillaryoffers/sdk
2. Compose an offer
import { OfferEngine } from "@ancillaryoffers/sdk";
const engine = new OfferEngine({ apiKey: process.env.AO_API_KEY });
const offer = await engine.compose({
segments: [{ origin: "LHR", destination: "JFK", date: "2026-06-12" }],
traveler: { id: "trv_8f2", channel: "direct", market: "GB" }
});
console.log(offer.bundles);Response
{
"id": "offr_01H8...",
"composedAt": "2026-06-12T10:42:11Z",
"latencyMs": 178,
"bundles": [
{ "id": "bnd_comfort_plus", "price": 738.40, "currency": "USD" },
{ "id": "bnd_smart", "price": 612.40, "currency": "USD" },
{ "id": "bnd_flex", "price": 894.00, "currency": "USD" }
],
"audit": { "trail": "audt_..." }
}What's exposed.
Shopping & offers
Compose, refresh, and re-shop offers in real time.
Orders & servicing
Book, modify, cancel, refund — full lifecycle.
Pricing
Real-time elasticity, BYO-model inference, audit.
Merchandising
Variant management, ranking, slot composition.
Bundles
Generate, govern, and price branded fare families.
Personalization
Feature lookup, segment evaluation, scoring.
Charter quotation
ACMI, ad-hoc, and contract pricing endpoints.
Marketplace
Hotel, ground transport, insurance, lounges.
Analytics
Semantic metrics, exports, anomaly detection.
Get sandbox access
A self-serve sandbox with synthetic traffic, identical APIs, and isolated data. Spin up in minutes.