Opper AI
A Europe-based gateway that lets developers call over 300 AI models through one API, with data kept on EU servers for GDPR compliance.
🔗 Visit Opper AI
Description
Building an app with AI usually means picking one AI company's model and writing code specifically for it — which becomes a headache the moment you want to try a better or cheaper model, or the moment a customer in Europe asks where their data is actually stored. Opper AI solves both problems: it sits between your app and over 300 different AI models from more than 30 providers, so you write your code once and can swap models without rewriting anything, while your requests can be routed and stored entirely on servers inside the EU.
Opper AI is an AI gateway aimed at developers and companies that need multi-model flexibility without vendor lock-in, and specifically at teams that need GDPR-grade data handling — a single sub-processor model, AES-256 encryption at rest, and an optional Zero Data Retention mode for enterprise customers. It's compatible with the OpenAI SDK, so migrating existing integrations is largely a config change, and it adds a Control Plane layer on top with observability, routing logic, content filtering, and audit trails for teams that need to see and govern what their AI features are actually doing in production. Pricing is pay-as-you-go: a 3% platform fee on the base Gateway plan, 5.5% plus per-use charges once you turn on the Control Plane's observability features, and custom Enterprise pricing with volume discounts. Failed or fallback requests aren't billed.
💬 Our review
The short version: if you're building in or for Europe and need AI model flexibility without a US-only data trail, Opper AI is a solid, boring-in-a-good-way choice — the differentiator is the compliance posture, not novelty.
Against general-purpose routers like OpenRouter, Opper AI's pitch is narrower but sharper: EU hosting, a single sub-processor (fewer parties touching your data, which matters for legal review), and an audit trail baked into the Control Plane rather than bolted on. The pricing model — a percentage fee on top of token costs rather than a flat markup — is transparent but means your gateway bill scales with spend in a way flat-fee tools don't, worth modeling before committing at volume. It's a reasonable pick for EU-based startups and any team whose legal or procurement department asks pointed questions about data residency; a US-based indie developer with no compliance requirement will get less specific value from it than from a lower-friction router. No public founding date or funding disclosed, and the roster of 50k+ developers is a company claim, not independently verified.
💰 Pricing
📊 Global score
🤖 AI-enriched data
Gateway : 3% de frais sur les crédits achetés. Control Plane (observabilité, routing) : 5.5% + facturation à l'usage. Enterprise : sur devis, remises volume, option Zero Data Retention.
Pros
Hébergement UE + modèle mono-sous-traitant, conçu pour la conformité RGPD
300+ modèles via une seule API compatible SDK OpenAI
Chiffrement AES-256 au repos, option Zero Data Retention en Enterprise
Requêtes échouées ou en fallback non facturées
Cons
Frais en pourcentage du volume plutôt qu'un tarif fixe — peut coûter cher à gros volume
Différenciateur principal = conformité, moins d'intérêt hors contexte réglementaire européen
Date de fondation et financement non communiqués publiquement
Chiffres d'usage (50k+ devs) non vérifiables indépendamment