Ship AI in mobile apps
without a backend or API keys
A mobile-first AI gateway and SDK that keeps provider keys off devices, enforces usage limits, and lets you switch LLMs without app updates.
One SDK. Every major AI provider.
Call any supported provider through a single API and switch models at runtime without shipping app updates.
Integrate in under a minute.
Initialize the SDK, add your service ID, and start making secure AI requests. No backend setup, no API keys in your app.
Native Mobile SDKs
import SilentLayer
// 1. Initialize SDK
let openAI = try SilentLayer.openAIService(
serviceURL: "https://gateway.silentlayer.ai/..."
)
// 2. Make secure request
let response = try await openAI.chat(
messages: [
ChatMessage(role: "user", content: "Explain Swift.")
],
model: "gpt-4o-mini" // Optional. Dashboard configurable
)Capabilities
Mobile-first AI infrastructure
Split-Key Control
Provider keys never live on-device. Requests use time-bound credentials, so full API keys are never exposed.
Dynamic Model Switching
Swap LLM model versions instantly via the dashboard. Update your app's AI logic without waiting for App Store review.
Native Mobile Streaming
Get real-time, token-by-token responses with an SDK built to keep your UI responsive on any network.
Device-Bound Security
Every request is cryptographically signed and bound to device fingerprints, preventing API harvesting and replay attacks.
Descriptive Analytics
Monitor usage with detailed breakdowns, including request counts, token usage, latency, and integrity signals.
Infrastructure as SDK
Replace complex DIY proxies with a 1-minute SDK integration—no servers to maintain or scale.
Security
API keys never reach the device
Your app never stores or transmits provider API keys. It sends only a public service ID. SilentLayer securely injects the provider key server-side, executes the request, and immediately discards the secret.
Mobile App
Sends a public service ID only.
SilentLayer
Reassembles a KMS-encrypted secret in memory, forwards the request to the provider, then wipes the key.
HMAC Signed
Request Integrity
Session-Bound
Per-Device Access
Replay Protection
Non-Repeatable
Short-Lived Sessions
Ephemeral Access
Simple, request-based pricing
No token counting or surprise bills — just generous, predictable requests per month.
Free
Ideal for prototyping
- 5,000 requests/mo
- 1 Project limit
- Unified Mobile SDK
- Split-Key Security
- Basic Analytics
Starter
For growing indie apps
- 25,000 requests/mo
- Everything in Free
- Up to 3 Projects
- Unified Analytics
- Rate Limiting
- Dynamic Model Switching
Pro
For professional developers
- 150,000 requests/mo
- Everything in Starter
- Unlimited Projects
- Unified Analytics
- Rate Limiting
- Dynamic Model Switching
- Priority Email support
Need even higher limits?
For apps needing 500k+ requests/mo or custom enterprise terms, we’ve got you covered.
Ready to ship secure AI?
Get started in minutes with our SDK. Strong security, multi-model access, and zero API keys on devices.
No credit card required