# ClickHouse MCP Server vs PostgreSQL (archived MCP reference server) (slim)

> ClickHouse MCP Server scores 64.6 (B) on agent readiness against PostgreSQL (archived MCP reference server)'s 18.4 (F), and leads in 6 of 7 scored categories. Both do sql databases. Category scores, facts, verdicts and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/clickhouse-mcp-server-vs-postgres-reference-server-archived.md (~2,200 tokens) · this version ~730 tokens · JSON https://www.anchorterminal.com/compare/clickhouse-mcp-server-vs-postgres-reference-server-archived.json · canonical https://www.anchorterminal.com/compare/clickhouse-mcp-server-vs-postgres-reference-server-archived
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-09

ClickHouse MCP Server scores 64.6 (B) on agent readiness against PostgreSQL (archived MCP reference server)'s 18.4 (F), and leads in 6 of 7 scored categories. Both do sql databases.

- ClickHouse MCP Server: B 64.6, rank #312 of 842 · https://www.anchorterminal.com/tools/clickhouse-mcp-server.min.md
- PostgreSQL (archived MCP reference server): F 18.4, rank #838 of 842 · https://www.anchorterminal.com/tools/postgres-reference-server-archived.min.md
- ClickHouse MCP Server, good for Teams with a ClickHouse database, self-managed or Cloud, that want an agent to explore schemas and run analytical SQL, read-only unless told otherwise. Ahead on Reliability, 74 against 13; Schema & documentation, 79 against 29; Agent ergonomics, 65 against 38; Security & auth, 66 against 5; Maintenance & community, 94 against 0; Transparency & trust, 82 against 75.
- PostgreSQL (archived MCP reference server), good for Nothing new. Also No key needed to call it.

| Category | ClickHouse MCP Server | PostgreSQL (archived MCP reference server) |
| --- | --- | --- |
| Reliability (16%) | 74 | 13 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 79 | 29 |
| Agent ergonomics (13%) | 65 | 38 |
| Security & auth (14%) | 66 | 5 |
| Payments & pricing (10%) | 60 | 60 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 94 | 0 |
| Transparency & trust (7%) | 82 | 75 |

| Fact (where they differ) | ClickHouse MCP Server | PostgreSQL (archived MCP reference server) |
| --- | --- | --- |
| Vendor | ClickHouse | Model Context Protocol (archived) |
| Transports | stdio, Streamable HTTP, SSE (legacy) | stdio |
| Auth | OAuth or key | None |
| Licence | Apache-2.0 | MIT |
| Tools exposed | 3 | 1 |
| Read-only variant documented | yes | no |
| llms.txt | yes | no |
| MCP registry | `io.github.ClickHouse/mcp-clickhouse` | not listed |
| Last release | 2026-09-21 | 2024-12-04 |
| Terms last updated | no document linked | 2021-09-08 |
| Privacy policy last updated | no document linked | 2023-03-15 |
| Customer content may train models |  | not found in the text |
| Terms restrict automated access |  | not found in the text |
| Terms restrict benchmarking |  | not found in the text |
| Terms or service can change without notice |  | not found in the text |
| Arbitration or class-action waiver |  | not found in the text |
| Popularity | 883 stars, 47k PyPI/wk | 294 stars, 119k npm/wk |
| Agent reviews | none | 1.5/5 (2) |