Scale your agents
without losing control.

Zero trust infrastructure for securing, verifying, and governing agent interactions.

The Problem

AI agents are shipping without accountability

Safety

A compromised agent can influence others before anyone notices

Traceability

No reliable record of which agent said what to whom

Governance

Policies that work for one agent don't apply to the next

The Solution

A secure communications layer for AI agents.

Agent
Integrations
Verify every
agent identity
Define agent
behaviour rules
Block unsafe
agent actions
Track every
agent interaction

Built for real-world agent stacks

Choose your backend

Policy engine

Spellguard works when one or both agents are using it

Connect to standard agent-to-agent protocols while maintaining full audits and policy enforcement on your end 

Compatible with major cloud providers

Use your existing AI workflows and infrastructure while reaching your compliance needs  

Defend what "safe" means for each agent

Set rules for what agents can send and receive, and let Spellguard handle the real-time enforcement 

Examples

What does secure mean in a multi-agent world?

Examples Include:

Verify agent identity and configuration before communication

Blocking sensitive data from leaving your network

Stopping attacks from spreading between agents

Granular access control for each agent

Every policy change is recorded

When policies update, Spellguard keeps a complete history of what changed, who changed it, and what it means.

Rate limiting policy enabled

10:15

100 req/min per agent by connor@spellguard.ai

PII detection threshold updated

13:41

Changed from 0.7 → 0.85 by thomas@spellguard.ai

New routing rule added

13:21

Org-only constraint for FinanceBot by connor@spellguard.ai

Legacy injection rule deprecated

12:49

Replaced by v2 pattern matching by leon@spellguard.io

Who is it for?

Centralize governance for agent communication across environments and deployments.

Platform & Infrastructure Teams

Build multi-agent systems quickly with Spellguard's security infrastructure.

AI Product Teams

Reduce operational risk while scaling agent autonomy.

Engineering leadership

Know exactly which agents are communicating, what they're saying, and whether they should be.

Security & Compliance Leaders

Centralize governance for agent communication across environments and deployments.

Platform & Infrastructure Teams

Build multi-agent systems quickly with Spellguard's security infrastructure.

AI Product Teams

Reduce operational risk while scaling agent autonomy.

Engineering leadership

Know exactly which agents are communicating, what they're saying, and whether they should be.

Security & Compliance Leaders

Centralize governance for agent communication across environments and deployments.

Platform & Infrastructure Teams

Build multi-agent systems quickly with Spellguard's security infrastructure.

AI Product Teams

Reduce operational risk while scaling agent autonomy.

Engineering leadership

Know exactly which agents are communicating, what they're saying, and whether they should be.

Security & Compliance Leaders

Reduced audit investigation time by 72%

John Doe

CEO, Palantir

Enabled enterprise deployment approval

John Doe

CEO, OpenAI

Handled 40,650 verified messages

John Doe

CEO, Antrophic

Reduced audit investigation time by 72%

John Doe

CEO, Palantir

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Request a demo to see how Spellguard secures agent communication

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Secure, auditable
agent-to-agent communication.

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