Opper AI

An API gateway that aggregates over 300 AI models from multiple providers behind a single endpoint, eliminating the need to manage separate APIs and provider integrations. It sells to developers, engineering teams, and enterprises building AI applications who need model diversity and compliance. It is positioned as an EU-hosted, GDPR-compliant drop-in replacement for the OpenAI SDK, offering pay-as-you-go pricing and optional governance features like observability, routing, guardrails, and compliance controls.

Key features

• Access 300+ models across text, image, voice, video
• Drop-in OpenAI SDK compatibility
• EU-hosted and GDPR-compliant
• Pay-as-you-go pricing with no markup on tokens
• LLM-as-judge auto-scoring (Observe)
• Intelligent routing with fallbacks (Route)
• Context engineering (Steer)
• PII masking and content filtering (Guard)
• Compliance controls: model allowlists, budget caps, audit trails (Comply)
• Prompt caching for cost savings
• Tracing with spans and custom metrics
• Bring your own key (BYOK)
• Agent-compatible setup (Claude Code, Codex, etc.)
• Interactive playground and model catalog