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QuestDB Web Console MCP Server

io.github.questdb/mcp-server-questdbv0.3.0Other

Connects coding agents to a running QuestDB Web Console: notebook cells, SQL queries, and charts.

In-path gate · all MCP tools

Using QuestDB Web Console MCP Server in Claude, Cursor, Gemini CLI, Cline, or Zed?

MCP tool contracts can change remotely with no version bump. The mcpindex gate pins each contract and HOLDs the call when it drifts-before your agent acts. Zero credentials. This is not the package install for this server itself (use Install this server for that).

Install the mcpindex gate (one command)

Rewrites your MCP host config so each server launches behind the gate. Inspect first: curl -fsSL https://mcpindex.ai/install.sh | less

uv tool install mcpindex-gate && mcpindex-config-wire
Auditable install path →Watch it hold a drift →
Trust verdict · v1 advisory · method
NOT YET SCREENEDno verdict on file

Verdict not yet evaluated for this tool. The semantic screen takes adversarial cases first; coverage rolls out as the corpus expands (15/150 labels to graduation). The deterministic conformance probe is built but has not yet run on the public corpus, so a recorded verdict here is REVIEW or UNVERIFIED, never a clearing ALLOW. Until a verdict is recorded, an agent should treat this tool as not-yet-cleared and fall back to its own checks. Method: the eval, four-state verdict, honest limits.

Own this server? Screen its description →

That verdict was true at screening time (snapshot 2026-08-11).

Contracts can change after screening, with no version bump. The gate pins QuestDB Web Console MCP Server’s tool contracts on first sight and holds any silent change before your agent acts - the check that keeps being true on Tuesday.

See your first HOLD in 2 minutes →

Related: how to trust an MCP server · screen before install · silent contract drift

Environment variables
CONSOLE_ORIGIN

QuestDB Web Console origin.

MCP_BRIDGE_PORT

Fixed WebSocket port for pairing. Auto-allocated when unset.

LOG_PATH

Log file location. Defaults to a timestamped file under /tmp/questdb-mcp-bridge.

LOG_LEVEL

Log verbosity. DEBUG adds heartbeats and full tool payloads.

MCP quality score · maturity, not trust · methodology
freshness
25
completeness
20
installability
25
documentation
15
stability
5
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