# Opper

> A unified AI gateway that routes 200+ models with built-in LLM observability, automated fallbacks, PII masking, and budget caps for production AI agents.

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.*

## Features
- 200+ model routing
- LLM observability and tracing
- Automated fallbacks and retries
- PII masking and content filtering
- Budget caps and cost tracking
- Prompt optimization via in-context learning
- OpenAI SDK compatibility
- Bring Your Own Key (BYOK)
- A/B testing and model comparison
- Data residency in EU (AWS Stockholm)
- Zero data retention option
- Streaming support
- Rate limiting
- Audit logging

## Integrations
OpenAI, Anthropic, Google, AWS Bedrock, OpenClaw, OpenCode, Cursor, Cline, Kilo Code

## Platforms
WEB, API

## Pricing
Freemium — Free tier available with paid upgrades

## Links
- Website: https://opper.ai
- Documentation: https://docs.opper.ai/
- Repository: https://github.com/opper-ai
- EveryDev.ai: https://www.everydev.ai/tools/opper