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A Reliable Programmatic Flight-Search API That Survives Google's Changes

Swoop is an open-source library to search Google Flights programmatically with real prices, typed results, and no API key, reaching 83 GitHub stars from developers building flight-deal trackers, travel tools, and price-monitoring bots, and its issues expose both the fragility and the demand of the category: as of mid-2026 every search started returning empty because Google's internal RPC began answering with an error response, and developers are asking for per-leg round-trip pricing and the full list of OTA booking vendors per itinerary. People building travel products need reliable, structured access to real flight prices without paying for expensive flight APIs. The wedge is a resilient flight-data library that keeps working through Google's changes and exposes the pricing detail builders actually need.

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Overall

Problem Statement

A developer builds a flight-deal tracker or travel tool on a programmatic Google Flights client to avoid expensive flight APIs, but Google changed its internal RPC so every search suddenly returns empty, and even when it works they cannot get per-leg pricing for round trips or the full list of booking vendors per itinerary. Free structured flight data is exactly what they need, but a library that breaks the moment Google shifts its backend and lacks key pricing detail cannot anchor a product people rely on.

The Idea

A resilient, typed library for programmatic flight search with real prices and booking-vendor detail that survives Google's frequent backend changes so developers can build travel tools without costly APIs.

Why Now

Travel rebounded and indie developers kept building flight-deal trackers and price bots in 2026, but official flight APIs are expensive and gated, so demand for a free programmatic client is high; swoop's sudden empty-results breakage when Google changed its RPC shows that resilience to upstream changes and reliable structured pricing, not just a clever scraping trick, are what stand between a flight library and a dependable foundation for travel products.

Target User

Developers building flight-deal trackers, travel tools, and price-monitoring bots

Target Market

Flight-search data and travel developer tooling

The full brief is free to read

Create a free account to unlock the complete build-ready brief for “A Reliable Programmatic Flight-Search API That Survives Google's Changes”, including:

  • MVP scope & feature boundaries
  • Step-by-step validation plan
  • Score rationale across 11 dimensions
  • Monetization model & pricing angle
  • Competitors with links
  • Acquisition channels & go-to-market
  • Risks & counter-evidence

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