AgentGuard is unclaimed —

AgentGuard

Security & Cost Control Layer for AI Agents·useagentguard.com

$49–$349/mo · Free plan · Open source See pricing ↓

AgentGuard is a developer SDK that adds budget limits, auth isolation, and MCP policy enforcement to AI agents. It lets developers set per-workflow spending caps, auto-downgrade models near budget limits, isolate per-agent credentials, and enforce natural-language policies on MCP tool calls. It also meters tokens across multiple providers and can auto-generate Stripe invoices based on usage.

What it's for

Setting per-workflow, per-user, or per-feature AI agent budgetsAuto-downgrading models when nearing budget capsKilling runaway agent workflows to stop cost overrunsIsolating credentials per agent to prevent credential sprawlEnforcing OAuth scopes and least-privilege access for agentsIntercepting and enforcing policy on MCP tool callsGenerating compliance reports for AI agent activityMetering token usage across providers and billing clients via Stripe

Features 18

Agent identity registry
Auto model downgrade near budget limits
CLI cost reports
Compliance report generation (EU AI Act, NIST AI RMF, ISO 42001)
Cost anomaly detection
Credential rotation
Hard kill switch to stop runaway agents
MCP tool-call interception and policy enforcement
Natural language policy rules
OAuth scope enforcement
Per-agent credential isolation
Per-workflow budget caps
Permission drift detection
Rate limiting and quotas per agent/user/endpoint
Real-time token tracking across providers
Slack/Discord alerts
Usage-based Stripe billing integration
Web dashboard

At a glance

free tieropen sourceself-hostableAPI

TypeLibrary / SDK

DeploymentHybrid

PlatformsWeb

Fordevelopers

CompanyZentriTools

Integrations

AnthropicDiscordOpenAISlackOllamaGitHubGoogleStripe

Complianceself-reported

EU AI ActISO 42001NIST AI RMF

Pricing

Fortress (Enterprise) tier is quote-based/contact-only with no listed price. MCP Security Stack bundle mentioned as a savings option but no price given.

Guard CoreFree

Open source, free forever

10K tracked calls/mo

Guard Pro$49/mo

Everything in Free, 100K tracked calls/mo, Web dashboard, Slack/Discord alerts, Cost anomaly detection, Per-user budget tracking, Multi-provider token metering, Stripe billing integration, 30-day cost history

100K tracked calls/mo, 30-day cost history

Shield$149/mo

Everything in Guard Pro, Per-agent credential isolation, OAuth scope enforcement, Agent identity registry, Permission drift detection, Credential rotation, 500K tracked calls/mo, 90-day history

500K tracked calls/mo, 90-day history

Sentinel$349/mo

Everything in Shield, MCP tool-call interception, Natural language policies, Per-tool access control, Real-time violation alerts, Compliance report generation, 1M tracked calls/mo, 1-year history, Priority support

1M tracked calls/mo, 1-year history

Fortress (Enterprise)Quote

Quote-based enterprise tier, contact required

Unlimited calls