A runtime firewall for AI agents, inspecting and enforcing tool calls.
Product memo
Targets developers building AI agents that interact with critical systems. Its wedge is a runtime firewall, inspecting tool calls before execution, a crucial gap left by model-layer AI security. This offers a strong moat by preventing direct data destruction or exfiltration, with a self-hosted deployment appealing to security-conscious enterprises.
For who
Developers building AI agents
Solves what
Runtime security for AI agents, preventing destructive actions and data breaches.
- Tool call firewall
- Real-time inspection & enforcement
- Self-hosted deployment
In their own words
Your AI agents can delete your database.
Clampd sits between your agents and the tools they use. Every database query, API call, file access, and shell command - inspected, scoped, and enforced before it executes. If an agent goes rogue, we kill it in under 25ms. One line to integrate. Self-hosted. Your data never leaves your network.
Commercial cues
Model
hybrid
Free tier
Yes
Trial
Available
Design Partner
Full 9-stage security pipeline · 263 detection rules + Cedar custom policies
Production Enterprise
CustomFull RBAC & team management · OIDC SSO (Okta, Azure AD, Keycloak) · A2A delegation graph (approve, block, enforce)
Pricing Strategy
Offers a freemium model, providing a generous free tier for up to 25 agents before scaling to custom enterprise pricing for higher limits and advanced features.
- • The free tier offers a full security pipeline, acting as a powerful, frictionless trial for developers.
- • Agent count is the primary driver, forcing users to scale to enterprise as their AI deployments grow.
- • The Enterprise tier bundles advanced security and compliance features, capturing high-value, regulated customers.
Operator context
Founded
May 2026
Social / footprint
and 1 more
Builder Strategy
- Strategy Type
- Niche Specialist
- Stage
- Pre Revenue
- Effort
- Solo Buildable
Targets developers building AI agents with a runtime firewall wedge, preventing destructive actions via tool call inspection.
Unfair Advantages
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Unorthodox Pricing Generous free tier with full security pipeline acts as a powerful, low-friction trial.
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Exclusive Distribution Self-hosted deployment appeals to enterprises with strict data residency and security needs.
Builder Lesson
Focus on a critical runtime security gap for AI agents that incumbents cannot easily replicate.
Full Reasoning
Wins by focusing on the runtime execution of AI agents, a critical gap left by model-layer security. The wedge is a tool-call firewall with a self-hosted option, appealing directly to security-conscious developers. The free tier is a strong distribution play, allowing developers to experience the value before committing. Builders should identify similar critical execution-layer security gaps in emerging tech stacks, as these often represent the most vulnerable points.
About clampd Expand
Clampd offers a specialized runtime security solution for developers building AI agents. As AI agents gain the ability to interact with critical systems and sensitive data, the risk of unintended or malicious actions escalates. This platform addresses that vulnerability head-on by acting as a firewall, meticulously inspecting and enforcing every tool call an AI agent attempts before execution. Unlike traditional AI security that often focuses on the model layer, Clampd operates at the execution layer, providing a crucial last line of defense against data destruction or exfiltration.
Designed for security-conscious enterprises and developers, Clampd supports self-hosted deployments and includes over 263 detection rules, alongside compliance framework support for standards like HIPAA, GDPR, SOC 2, and PCI-DSS. The company's approach acknowledges that the biggest threat from AI agents isn't just what they say, but what they *do* when given access to tools and systems. By offering a free tier for up to 25 agents, Clampd enables developers to integrate robust security from the ground up, ensuring their AI agents operate safely and within defined boundaries.