Product Documentation
What Sylica Gateway Is
Sylica Gateway is a unified LLM access layer for teams that want one stable API contract while still using multiple model providers. Instead of coupling product code to each provider SDK, you integrate once and control routing, reliability, and cost policy from a central gateway.
This docs hub explains the product from architecture to operations, then links to detailed implementation sections for each integration surface.
Last updated: April 20, 2026
Core Product Capabilities
Unified API for Multiple Providers
Integrate once and route requests across OpenAI, Anthropic, Google, and additional providers without rebuilding your application layer.
Smart Routing and Fallbacks
Choose speed, quality, or cost strategies per workload, and let fallback policies keep your app responsive when upstream providers fail.
Credits and Usage Control
Track balance and consumption centrally so teams can enforce budget policy and avoid hidden model spend across products.
Production-Grade Operations
Use request IDs, retry-safe error semantics, and streaming support to run reliable real-time experiences at scale.
How The Product Works
At runtime, Sylica sits between your application and provider APIs. It standardizes request shape, applies routing policy, and returns a consistent response contract.
- Your app sends one OpenAI-compatible request to Sylica Gateway.
- Sylica evaluates model policy, provider health, and routing constraints.
- The request is executed with streaming or non-streaming response mode.
- Usage and credits are recorded, and a consistent response envelope is returned.
Explore Detailed Guides
Use these pages for full implementation details, request schemas, error handling patterns, and production rollout guidance.
Overview
Platform architecture, compatibility model, and request lifecycle.
Quickstart
Production-ready setup path for your first successful request.
Authentication
API key lifecycle, header requirements, and key management policy.
Endpoints
Core REST surface for chat, model catalog, and credits.
Chat Completions
Request contract, response shape, and advanced controls.
Streaming
SSE protocol behavior, chunk semantics, and client handling.
Routing
Provider routing controls, fallback behavior, and latency strategy.
Errors and Retries
Error taxonomy, retry classes, and resilient backoff guidance.
Billing and Credits
Credit checks, debit timing, and balance observability patterns.
Production Readiness
Deployment checklist for security, reliability, and supportability.
Related Product Pages
For commercial and governance context, review model catalog, pricing, and compliance documentation alongside the integration guides.