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Market around Prompt Guard

Open-source prompt injection defense system for AI agents. Detects and blocks manipulation attacks across LLM-powered systems with multi-language support and severity scoring.

Visit github.com ↗Pricing page ↗

Explore the market

Prices and medians update for the tier you select.

Compare at
Prompt Guard · Pro
No Pro plan
—
Pro-provider median
—
insufficient comparable pricing
vs Pro providers
No comparison
Prompt Guard doesn't sell Pro
ⓘ Comparisons are same provider type (provider) and same buyer tier (Pro). Never across tiers.
Market density
37th pctile
49 competing vendors
Comparable listings · 30d
—
Price spectrum · Pro plans · 5 of 11 providers priced · log scale · $25 → $99/mo
Agents MCP servers Platforms Other◻ shaded = middle 50% · line = median (all types)Prompt Guard has no comparable Pro price — not plotted

Products in this market

Ranked by how closely each one matches Prompt Guard's job. Prices show each provider's Pro state; entry prices are labelled as such. Unpriced products still belong to the market.

OOther10Ranked by similarity
Prompt Guardthis listing
● OTHER
no public price
ReasonGate
● OTHER75% similar
no public price
Lakera AI Agent Security Platform
● OTHER75% similar
no public price
Grey Panda
● OTHER73% similar
no public price
Stroq
● OTHER72% similar
no public price
Mcp Defender
● OTHER72% similar
no Pro plan
entry $30/mo
SENTINEL
● OTHER72% similar
no public price
GenPark Prompt Injection Jailbreak Detector
● OTHER71% similar
no public price
PHANTOM SNARE
● OTHER71% similar
no public price
Endpoint Protector
● OTHER70% similar
no public price
MMCP servers13Ranked by similarity
PR
promptscan
● MCP81% similar
no public price
Zentric Protocol
● MCP77% similar
no Pro plan
entry $29/mo
Prompt Injection Scanner MCP - LLM Security Testing
● MCP77% similar
$25/mo Pro
Shrike Security
● MCP74% similar
$99/mo Pro
EM
EMA Prompt Injection Firewall v3.1.0
● MCP74% similar
no public price
Tensorfire
● MCP74% similar
no public price
Canary MCP
● MCP74% similar
no public price
GenPark PII Secret Redaction & Masking
● MCP73% similar
no public price
Prompt Shield AI Safety MCP
● MCP72% similar
no public price
safewebfetch
● MCP72% similar
no public price
CouchLoop EQ
● MCP71% similar
no public price
mcp-shield
● MCP70% similar
no public price
Promptbrake Free Tools
● MCP70% similar
$99 one-time Pro
not monthly-comparable
FFrameworks3Ranked by similarity
Sentinel Ai
● FRAMEWORK78% similar
no public price
Guardrails AI
● FRAMEWORK72% similar
no public price
Bioma Framework
● FRAMEWORK71% similar
no public price
AAPIs2Ranked by similarity
Aegisgate
● API77% similar
no public price
TradingAgents
● API76% similar
no Pro plan
entry $49/mo
AAgents5Ranked by similarity
Sentinel Scan
● AGENT77% similar
no public price
Agent Opfor
● AGENT75% similar
no public price
AI Security Platform
● AGENT72% similar
no public price
Ment Tech Ai Security
● AGENT72% similar
no public price
AIShield
● AGENT71% similar
no public price
PPlatforms2Ranked by similarity
Conduct AI
● PLATFORM71% similar
no Pro plan
entry $79/mo
Clawsecure
● PLATFORM71% similar
$29/mo Pro

Market = the products most similar to this one by capability; prices are median / quartiles over its priced members, separated by provider type and buyer tier.