Opper

Opper is a unified AI API and gateway that lets developers and teams route requests across 200+ models from 13+ providers with a single integration. It provides a full control plane for observability, intelligent routing, prompt optimization, enterprise guardrails, and compliance tooling. Opper is drop-in compatible with the OpenAI SDK, requiring only a one-line change to get started, and charges a flat 3% platform fee on model provider costs with pay-as-you-go credits.

• Intelligent Routing: Switch between 200+ models instantly with load balancing, preferred vendor selection, and zero-downtime model switching — no code changes required.
• LLM Observability: Trace calls with hierarchical spans, input/output logging, custom metrics, filtering, and tracing dashboards to eliminate black boxes in your AI agents.
• Prompt Optimization (Steer): Auto-scoring (0–100), in-context learning, dataset evaluations, and model comparison & A/B testing to maintain consistent quality.
• Enterprise Guardrails (Guard): Mask PII and filter content in real time so sensitive data never reaches the model, with input/output validation and custom policy rules.
• Compliance & Budget Control: Cost tracking by model, project, and user with token-level breakdowns and strict budget caps per project or agent.
• Automated Fallbacks & Retries: Built-in fallback logic ensures high availability across providers without manual intervention.
• OpenAI SDK Compatibility: Works as a drop-in replacement — change one line of code to route through Opper and gain access to all providers.
• Data Privacy & Security: End-to-end encryption (AES-256 at rest, TLS in transit), optional zero data retention, and isolated data per organization. Platform hosted in AWS Stockholm.
• Multi-Modality Support: Supports text, vision, images, audio, and embeddings across all connected providers.
• Bring Your Own Key (BYOK): Enterprise plans support using your own provider credits for full cost control.