VISTA Data MCP Server

Read-only MCP server for querying ClickHouse (product telemetry) and Elasticsearch (download analytics), built for Percona VISTA.

→ Percona-Lab/vista-data-mcp · listed on glama

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// key findings

✅

No credential exfiltration, no sensitive file access, no obfuscation

Static analysis found nothing flowing your secrets to unexpected places.

🔐

You'll be asked for 2 credentials: CLICKHOUSE_PASSWORD, ES_PASSWORD

These are read from process.env at runtime. Make sure you trust where they’ll be sent.

// required environment variables

This server reads these from process.env. You'll be asked to provide them before it can run.

configCLICKHOUSE_QUERY_TIMEOUT— Query timeout: 30 seconds default (configurable via / ES_QUERY_TIMEOUT)

configCLICKHOUSE_MAX_ROWS— Row/hit limits: Results capped at 500 (configurable via / ES_MAX_HITS)

configCLICKHOUSE_HOST— e =your-ch-host \

configCLICKHOUSE_PORT— No 8443 HTTP(S) port

configCLICKHOUSE_USER— e =default \

🔐 secretCLICKHOUSE_PASSWORD— e =your-ch-password \

configCLICKHOUSE_DATABASE— e =default \

configCLICKHOUSE_SECURE— No true Use HTTPS

configES_QUERY_TIMEOUT— Query timeout: 30 seconds default (configurable via CLICKHOUSE_QUERY_TIMEOUT / )

configES_MAX_HITS— Row/hit limits: Results capped at 500 (configurable via CLICKHOUSE_MAX_ROWS / )

configES_HOST— e =your-es-host \

configES_PORT— No 9200 Port

configES_SECURE— No true Use HTTPS

configES_USER— e =your-es-user \

🔐 secretES_PASSWORD— e =your-es-password \

configES_VERIFY_CERTS— No true Verify SSL certificates

configDOTENV_PATH

configREMOTE_SSE_URL

// full audit trail

The full breakdown of what we checked, the deductions that landed, the network hosts, the dependency advisories, and concrete fix guidance is available to verified publishers.

// improvement guidance — verified publishers only

We have 5 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.

// embed badge in your README

[![M8ven Score](https://m8ven.ai/badge/mcp/percona-lab-vista-data-mcp-1oq94w)](https://m8ven.ai/mcp/percona-lab-vista-data-mcp-1oq94w)

commit: f826060e7563dbc9eb4cd3ec3a571aedb7630204

code hash: 4f8088f1589db1cbff867cd1d2dfc3a7864de4c691e78411d9e7b8454fcfe41c

verified: 6/23/2026, 10:41:35 AM

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