Aviationstack ◆
Aviationstack is a scalable REST API for real-time flight tracking, historical flight data, airport info, and global aviation data.

EUrouter (Developer Tools): EUrouter is a European AI gateway that routes API requests to 100+ models with data residency in the EU. Pricing: from €0/mo. (data verified August 2026)
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EUrouter is a European AI gateway that provides a single OpenAI-compatible API to access and intelligently route requests to over 100 leading AI models—including GPT-4, Claude, Mistral, DeepSeek, and more—while ensuring all data is processed and stored within the European Union. It is designed for developers and companies that need to integrate AI without compromising on data residency or GDPR compliance.
When you use AI models from global providers, data often leaves the EU, creating GDPR risks. EUrouter solves this by routing every request through European infrastructure, enforcing GDPR by default. With smart routing, you can automatically select the best model for price, quality, or latency, while maintaining full control over budgets, limits, and observability. This reduces legal risk and saves engineering time compared with building in-house compliance.
EUrouter is ideal for startups, SaaS companies, and enterprises that need to use multiple AI models in production but must keep user data within the EU or meet GDPR requirements. It is also a good fit for developers who want a simple drop-in replacement for the OpenAI SDK. It may not be necessary if your data residency needs are minimal or if you operate outside the EU and do not have strict compliance constraints.
Editorial score from our review methodology — not user ratings.
EUrouter pricing: from €0/mo.
€0/mo. Includes 10K requests/month, rate limit of 20 RPM, and a 15% markup on token usage. Pay-as-you-go.
€39/mo. Includes 1M requests/month, rate limit of 60 RPM, and a 9% markup on token usage.
€99/mo. Includes 10M requests/month, rate limit of 150 RPM, and a 3% markup on token usage.
All plans include EU data residency and smart routing. No free trial is offered, but the Free plan lets you start at no cost.