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Hopper

Hopper is a travel marketplace and fintech, best known for consumer flight, hotel, car, and homes booking with fintech ancillaries such as Price Freeze, Cancel for Any Reason, and Disruption Assistance for Any Reason. Hopper Technology Solutions (HTS) is the B2B arm that exposes Hopper's e-commerce (Stays, Cars, Packages), fintech ancillaries, loyalty portals, and HTS Assist agentic AI to banks, airlines, and travel providers including Capital One, Air Canada, Virgin Australia, Tripadvisor, Frontier, Wizz Air, and Porter.

human only

More than an index entry, but the surface is still mostly links rather than artifacts — the cohort most likely to move a full band from modest, well-targeted work.

Kin Score

API Evangelist profiles Hopper the way a machine reads it — 11 machine-readable artifacts across 7 APIs, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.

Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Hopper scores 18.6/100 (emerging), with a separate agent-readiness read of 7/100 (human only). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.

Kin Score

This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance.

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 18.6/100 · emerging
Contract Quality 0.0 / 25
Developer Ergonomics 0.4 / 20
Commercial Clarity 5.8 / 20
Operational Transparency 3.4 / 13
Governance 0.0 / 12
Discoverability 10.0 / 10
Regulatory · Banking & Open Finance 2.0 / 15
Agent readiness — 7/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 15
MCP Server 0 / 12
Machine-Readable Auth 0 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3

How we profile Hopper

Each block below is one kind of artifact we hold for Hopper. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.

APIs 7

Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.

Individual APIs this provider publishes, each with its own machine-readable definition.

Hopper Consumer App

Consumer mobile and web app for booking flights, hotels, homes, and cars. Pioneered price prediction, Price Freeze, and flexible cancellation for end travelers. No public API.

HTS Stays

Hopper Technology Solutions lodging e-commerce platform that gives partners access to global hotel inventory with conversion-optimized UX and merchandising. Partner-gated; integ...

HTS Cars

Car rental e-commerce platform from HTS that partners embed for global car rental inventory and booking. Partner-gated.

HTS Packages

Bundled flight + hotel package product from HTS. Partner-gated.

HTS Fintech Ancillaries (Cancel for Any Reason, Disruption Assistance, Seat Upgrades)

Proprietary fintech ancillaries that partners attach to their bookings — Cancel for Any Reason (airlines and hotels), Disruption Assistance for Any Reason, and HTS Seat Upgrades...

HTS Travel Loyalty Portals (Banks)

Travel loyalty portals powering bank travel programs, used by partners such as Capital One Travel and RBC. Partner-gated.

HTS Assist (Agentic AI Customer Service)

Agentic AI built specifically for airline and travel customer service, delivering end-to-end autonomous resolutions via voice and chat. Sold to airlines and travel partners; int...

Scroll within the panel for all 7 ·

Pricing Plans 1

Pricing is part of the interface. Machine-readable plans tell you what a tier costs and includes before you commit — one of the six things the Kin Score reads for commercial clarity.

Published pricing tiers and plan structures.

Rate Limits 1

Rate limits are the difference between a demo that works and a production integration that doesn't fall over. Publishing them is an operational-transparency signal — and a hard requirement for any agent that plans its own throughput.

Documented rate limits and quota policies.

Hopper Travel Rate Limits

2 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals let a buyer model the financial operations of an API before it's live. We profile them for the same reason we profile pricing: the money is part of the contract.

Cost, billing, and metering signals for API financial operations.

Security Posture 1

Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Hopper Travel Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Resources

Every other property we hold for Hopper — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

Build 1

SDKs, sample code, and the tooling you integrate with

Access & Security 1

Authentication, authorization, and security posture

Operate 1

Status, limits, changes, and where to get help

Commercial 2

Pricing, plans, and the legal terms of use

← All providers · Data indexed from github.com/api-evangelist/hopper-travel · machine-readable index on apis.io