Platform Capabilities
CallStack AI Labs provides an enterprise-grade AI orchestration and governance layer that sits between your applications and upstream model providers.
Architecture Overview
Unified API Gateway
A single OpenAI-compatible endpoint that routes to Claude, GPT, Gemini, DeepSeek, and more. Zero code changes required.
Governance Layer
Configurable policies for content safety, rate limiting, budget caps, and model access control enforced at the gateway level.
Observability Stack
Built-in metrics, logging, and tracing. Export to your existing monitoring infrastructure (Datadog, Grafana, Azure Monitor).
Key Capabilities
Multi-Model Routing
Route requests to the optimal model based on configurable rules:
| Routing Strategy | Description |
|---|---|
| Priority-based | Define primary and fallback models for automatic failover |
| Cost-optimized | Route to the most cost-effective model that meets quality thresholds |
| Latency-optimized | Automatically select the lowest-latency endpoint |
| Round-robin | Distribute load evenly across multiple model endpoints |
| Content-based | Route based on request content, language, or task type |
Security & Access Control
| Feature | Description |
|---|---|
| API Key Management | Full lifecycle management with rotation, expiry, and scope controls |
| RBAC | Role-based access control with team and project-level permissions |
| SSO Integration | SAML 2.0 and OIDC support for enterprise identity providers |
| IP Allowlisting | Restrict API access to approved network ranges |
| Request Signing | HMAC-based request authentication for service-to-service calls |
Content Safety & Compliance
We enforce multi-layer content safety to ensure responsible AI usage:
- Azure Content Safety — Native integration with Microsoft's content moderation service
- Custom Filter Libraries — Organization-specific sensitive content rules and keyword filters
- PII Redaction — Automatic detection and masking of personal data before it reaches model providers
- Output Screening — Post-generation content review and policy enforcement
- Audit Logging — Immutable, tamper-proof logs for every request and response
Observability & Analytics
| Metric | Granularity |
|---|---|
| Token consumption | Per-request, per-model, per-team |
| Latency (P50/P95/P99) | Per-endpoint, real-time |
| Error rates | Per-model, per-status-code |
| Cost attribution | Per-project, per-department |
| Content safety flags | Per-request, aggregate trends |
| Budget utilization | Per-team, daily/monthly |
Data Residency
| Region | Deployment |
|---|---|
| Asia Pacific | Hong Kong, Singapore, Tokyo |
| Americas | US East, US West |
| Europe | Netherlands, UK |
All data processing occurs within the selected region. No cross-region data transfer without explicit configuration.
Integration
CallStack AI Gateway is fully compatible with the OpenAI API specification. Any tool, SDK, or framework that supports OpenAI can be used without modification:
- OpenAI Python / Node.js SDK
- LangChain / LlamaIndex
- Vercel AI SDK
- Any HTTP client
Simply configure your base URL to point to your CallStack gateway endpoint.
::: tip Enterprise Deployment For organizations with strict data sovereignty requirements, we offer private deployment options on Azure. Contact our solutions team for details. :::