# 🛡️ Guardian Data Cleanser & Sybil Shield
Autonomous Agent-to-Agent (A2A) data sanitization, prompt-injection defense, and graph-based Sybil cluster detection.
## Key Features
- **Prompt Injection Defense:** Neutralizes system overrides, role hijacking, and delimiter escapes.
As parsed from nevermined.app/checkout/826853291468703151006901571686635076512630551385104144327312484590976947199 on 2026-09-01.
Explore the market
Prices and medians update for the tier you select.
Compare at
Guardian Data Cleanser · Pro
No Pro plan
—
Pro-MCP server median
$39
across 7 priced MCP servers
vs Pro MCP servers
No comparison
Guardian Data Cleanser doesn't sell Pro
ⓘ Comparisons are same provider type (MCP server) and same buyer tier (Pro). Never across tiers.
Market density
11th pctile
2 competing vendors
Comparable listings · 30d
Flat
limited data · 0 priced comparables
Agents · Pro median
$62/mo
2 priced · $43.5–$80.5 mid 50%
MCP servers · Pro median
$39/mo
7 priced · $32.5–$89 mid 50%
Platforms · Pro median
$79/mo
3 priced · $54–$139 mid 50%
Frameworks · Pro median
$39/mo
1 priced · $39–$39 mid 50%
Other · Pro median
$341/mo
2 priced · $337–$346 mid 50%
Agents cost 1.6× MCP servers at the Pro tier.
Price spectrum · Pro plans · 8 of 12 providers priced · log scale · $25 → $333/mo
Agents MCP servers Platforms Frameworks Other◻ shaded = middle 50% · line = median (all types)Guardian Data Cleanser has no comparable Pro price — not plotted
Products in this market
Ranked by how closely each one matches Guardian Data Cleanser's job. Prices show each provider's Pro state; entry prices are labelled as such. Unpriced products still belong to the market.
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.