Operational Ontology vs PostgreSQL
Side-by-side comparison of two Model Context Protocol servers. Pick the right one for Claude Desktop, Claude Code, or Cursor.
Reference implementation of the Operational Ontology pattern: MCP tools are generated from a typed business domain model (objects, links, actions) — one tool pe
Read-only database access with schema inspection.
Comparison
| Feature | Operational Ontology | PostgreSQL |
|---|---|---|
| Pricing | Free | Free |
| Installs | — | — |
| Rating | — | — |
| Verified | — | |
| Hosted | — | — |
| Tools | — | — |
| Category | data | data |
| Author | gura105 | modelcontextprotocol |
| Repo | gura105/operational-ontology | modelcontextprotocol/servers-archived |
When to pick Operational Ontology
Reference implementation of the Operational Ontology pattern: MCP tools are generated from a typed business domain model (objects, links, actions) — one tool per query shape and per action, deliberately no raw SQL tool. Writes pass business-rule preconditions, are audited, and write back to the systems of record; refusals are machine-readable. Ships with a demo orders ontology spanning two legacy
When to pick PostgreSQL
Read-only database access with schema inspection.
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