vikasny30/aletheia-mcp vs Postgres
Side-by-side comparison of two Model Context Protocol servers. Pick the right one for Claude Desktop, Claude Code, or Cursor.
Deterministic (no-LLM) pre-execution filter for agent tool calls. Pattern-matches known scope-creep (out-of-mandate writes, credential-file reads, SSRF, destruc
Comparison
| Feature | vikasny30/aletheia-mcp | Postgres |
|---|---|---|
| Pricing | Free | Free |
| Installs | — | 1 |
| Rating | — | — |
| Verified | — | — |
| Hosted | — | — |
| Tools | — | 4 |
| Category | data | data |
| Author | vikasny30 | Anthropic |
| Repo | vikasny30/aletheia-mcp | crystaldba/postgres-mcp |
When to pick vikasny30/aletheia-mcp
Deterministic (no-LLM) pre-execution filter for agent tool calls. Pattern-matches known scope-creep (out-of-mandate writes, credential-file reads, SSRF, destructive shell/SQL) and prompt-injection vectors and blocks them in ~25 µs. Runs as standalone guard tools or a fail-closed transparent proxy in front of any downstream MCP server. Signatures from the Aletheia research paper; a first-line pre-filter, not a sandbox. Registry io.github.vikasny30/aletheia-mcp. npx -y aletheia-mcp
When to pick Postgres
Connect Claude to any Postgres. Ask questions in English, get SQL + results. Schema-aware, read-only safe mode by default.
Looking for something else? Browse all MCPs or check trending this week.