Perseus Computing vs Agentage Memory
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
Perseus Computing compared with Agentage Memory
| Detail | 
Perseus Computing | 
Agentage Memory |
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| What it does | High-assurance infrastructure for AI agents
| One memory. Every AI. Owned by you.
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| Stage | Not given
| Not given
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| Founded | Not given
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| Based in | US
| Not given
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| Pricing model | Open source
| Free
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| Pricing | Not given
| Not given
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| Key features | - Harpe: chooses what an AI agent reads under a token budget with consistent results
- Kibisis: keeps agent memory on your hardware with AES-256-GCM encryption
- Argus: append-only record that detects edits with cryptographic verification
- No network code by default for local and disconnected use
- MIT License with published code, benchmarks and raw results
| - Connect once through MCP endpoint across Claude, ChatGPT, Cursor and Claude Code
- Shared memory automatically synced across all connected AI tools
- Plain markdown storage with YAML frontmatter
- EU-hosted data with no vendor lock-in
- Lexical search across memory
- No API keys or complex configuration needed
- Account created automatically on first connection
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| What makes it different | - Measured empirical validation across 6,111 questions outperforming full-context models
- Zero plaintext on disk with encrypted vaults matching plaintext accuracy
- 78.3% fewer tokens sent to the model with a 1,200-token budget per turn
- Preserves conversational chronology and relational qualifiers under token budgets
| - Cross-vendor memory through MCP instead of locked to one assistant
- Plain readable markdown you own forever, not black-box vectors or rented format
- EU-hosted by architecture so data stays in your region
- Survives AI tool changes and deprecations unlike built-in assistant memory
- No maintenance needed unlike DIY scripts and cron jobs
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| Free plan | Not given
| Not given
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| Open source | Not given
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| Platforms | Not given
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| Public API | Not given
| Not given
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 42 ▲ +1 (up) since last check | 17 ▼ −1 (down) since last check |
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| Trust Flow (Majestic) | 3 | 12 |
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| Citation Flow (Majestic) | 24 | 32 |
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| Referring domains (Majestic) | 62 | 84 |
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4 details filled in for both companies.
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