Wafer sits between your app and the model. Redact PII, block leaked secrets, stop prompt injection, cache and rate-limit — by changing one base URL.
Guardrails run in parallel at the edge, so the happy path stays fast.
Catch emails, cards, SSNs and leaked API keys in prompts and responses — block or redact in place.
Detect jailbreak and prompt-injection attempts before they ever reach the model.
Return a stored answer for near-identical prompts and skip the model call entirely.
Live decisions, cache hit rate, latency p50/p95 and traffic for every project.
Cap requests per minute and daily token spend per project, enforced at the edge.
Your provider keys pass straight through. Wafer never stores them.
No SDK to learn. No code to rewrite.
Sign in to the console and create a project to get a gateway URL and policy.
Point your OpenAI or Anthropic SDK at the gateway URL. Keep your own API key.
Toggle guardrails, caching and limits, and follow traffic in analytics.
Wafer stops PII leaks, secrets and prompt injection at the edge. heystack.dev takes it from there — turning every Wafer decision into a traceable event so you see what happened, why, and how to fix it.
Explore heystack.dev →Detects and blocks PII, secrets and prompt injection on every request to your model.
Turns each decision into a root-cause trace, so you fix the source instead of the symptom.
No. Your provider key passes straight through with each request (bring-your-own-key). Wafer never stores it.
Single-digit milliseconds on the happy path. Cheap regex checks run inline; model-based checks run in parallel, and a Tier-0 block short-circuits the rest.
Just one line — point your OpenAI or Anthropic SDK's base URL at your project's gateway URL. No SDK to learn.
OpenAI and Anthropic today, with more on the way. Anything that speaks their API works unchanged.
Yes. Wafer integrates natively with heystack.dev — every guardrail decision becomes a traceable event for observability and root-cause analysis.
Yes — it's free to start. Create a project and ship in minutes.
Add a security layer to your LLM app in minutes. Free to start.
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