Gray Swan Integrates with Bifrost

The integration adds AI behavior enforcement for policy violations and Indirect Prompt Injection (IPI) directly into Bifrost’s guardrail layer. Teams can fine-tune for both speed and thoroughness. Enterprises can now deploy agentic AI safely and quickly when they use Bifrost’s AI gateway.

Gray Swan
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October 1, 2026

Bifrost, an AI gateway built for high-performance LLM routing, and Gray Swan have developed an integration. Gray Swan’s monitoring and protection agent, Cygnal, will now be offered within Bifrost to provide AI behavior enforcement.

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Enterprises that utilize Bifrost can now screen every request and response against configurable safety and security policies in real-time. This is accomplished without code changes; custom rules are based on natural language. All existing policies are referenced by ID.  

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"Enterprises are putting more AI into production every day, and the need to secure it is growing even faster. With Bifrost and Cygnal, teams using Gray Swan can bring their policies straight to the Bifrost gateway and screen every request and response in real-time. The gateway and the security layer are coming together, and we're glad to partner with Gray Swan on it." said by Gauri Mhaslekar, Partnerships Lead, Bifrost

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Cygnal assesses incoming payloads and returns a violation score of true or false. Policies are pulled from Gray Swan’s platform via a Policy ID. From there, teams can aggregate multiple policy IDs for combined evaluation, layer in custom natural language rules configured as key-value pairs, or do both. 

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The integration also detects indirect prompt injection, identifying malicious instructions hidden within third party content. It includes mutation detection for attempts to alter content. 

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“Enterprises all tell us the same thing: agentic AI is ready but their controls aren’t,” says Jody Hill, Director of Partner Development at Gray Swan. “This integration closes that gap in minutes instead of quarters. Bifrost handles the routing while Cygnal handles the risk.”

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Guardrails are configured as a provider profile at the gateway level. Bifrost attaches sanitized request metadata to each Gray Swan call for correlation, while excluding credential-bearing headers like authorization, cookie, and API keys from ever being sent. 

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Already running Bifrost’s gateway? Turning on Cygnal takes minutes, with zero code changes and a policy added at the gateway level. Check out how in the integration docs. If you're not yet on either platform, let's talk about protecting your agentic AI end-to-end, powered by Gray Swan and Bifrost.

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