io.github.couchbase/mcp-server-couchbase

io.github.couchbase/mcp-server-couchbasev1.0.0Other

Couchbase Model Context Protocol Server to interact with Couchbase clusters

In-path gate · all MCP tools

Using io.github.couchbase/mcp-server-couchbase 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

REVIEWstatus: PARTIALfresh until 2026-08-25 10:00 UTC

screened 2026-07-26tier: scannedgranularity: description-levelsource: registry

Semantic screen found no manipulation pattern in the description. Conformance probe not yet run.

mcpindex.integrity.descriptionpassINFO

evidence“No malicious instructions found”via static_description

Limits of this verdict

- Semantic screen only - the deterministic conformance probe has not run on this server
- Confidence is reported but not yet calibrated (v1)
- Screen reads the tool description, not the live behavior
- advisory
- registry description only no input schema
- screen model 8b

Semantic screen: an LLM judge reads the tool description for hidden instructions (status PARTIAL). A pass means the description is not lying, not that the tool is safe: a high-capability tool with an honest description still warrants caution. The deterministic conformance probe has not been run on this server yet, so the screen here is semantic-only. Posture: advisory. Confidences are reported but not yet calibrated (calibrated=false at v1). Full verdict history is not shown on this page.

Own this server? Screen its description →

That verdict was true at screening time (snapshot 2026-08-04).

Contracts can change after screening, with no version bump. The gate pins io.github.couchbase/mcp-server-couchbase’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 →

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Markdown

[![mcpindex](https://mcpindex.ai/api/v1/badge/io-github-couchbase-mcp-server-couchbase)](https://mcpindex.ai/server/io-github-couchbase-mcp-server-couchbase)

HTML

<a href="https://mcpindex.ai/server/io-github-couchbase-mcp-server-couchbase"><img src="https://mcpindex.ai/api/v1/badge/io-github-couchbase-mcp-server-couchbase" alt="mcpindex verdict" height="20" /></a>

Environment variables

CB_CONNECTION_STRING

Couchbase connection string. Required for connecting to the cluster.

CB_USERNAME

Couchbase database username. Required for basic authentication.

CB_PASSWORD

secret

Couchbase database password. Required for basic authentication.

CB_CA_CERT_PATH

Couchbase CA certificate path. Required for TLS authentication in non Capella clusters.

CB_CLIENT_CERT_PATH

Couchbase client certificate path. Required for mTLS authentication.

CB_CLIENT_KEY_PATH

Couchbase client key path. Required for mTLS authentication.

CB_MCP_READ_ONLY_MODE

Couchbase read only mode. Set to true to allow disable write operations across both KV and query. KV write tools are not loaded and SQL++ queries that modify data are blocked. Set to false to allow data modification queries and tools.

CB_MCP_TRANSPORT

Transport mode for the server (stdio, http or sse). Default is stdio

CB_MCP_HOST

Host to run the MCP server on (default: 127.0.0.1). Used only for HTTP and SSE transport modes.

CB_MCP_PORT

Port to run the MCP server on (default: 8000). Used only for HTTP and SSE transport modes.

CB_MCP_DISABLED_TOOLS

Tools to disable. Accepts comma-separated tool names (e.g., 'tool_1,tool_2') or a file path containing one tool name per line.

CB_MCP_CONFIRMATION_REQUIRED_TOOLS

Comma-separated tool names that require user confirmation before execution. Also accepts a file path containing one tool name per line. Requires the MCP client to support elicitation.

CB_CONNECTION_STRING

Couchbase connection string. Required for connecting to the cluster.

CB_USERNAME

Couchbase database username. Required for basic authentication.

CB_PASSWORD

secret

Couchbase database password. Required for basic authentication.

CB_CA_CERT_PATH

Couchbase CA certificate path. Required for TLS authentication in non Capella clusters.

CB_CLIENT_CERT_PATH

Couchbase client certificate path. Required for mTLS authentication.

CB_CLIENT_KEY_PATH

Couchbase client key path. Required for mTLS authentication.

CB_MCP_READ_ONLY_MODE

Couchbase read only mode. Set to true to disable write operations across both KV and query. KV write tools are not loaded and SQL++ queries that modify data are blocked. Set to false to allow data modification queries and tools.

CB_MCP_TRANSPORT

Transport mode for the server (stdio, http or sse). Default is stdio

CB_MCP_HOST

Host to run the MCP server on (default: 127.0.0.1). Used only for HTTP and SSE transport modes.

CB_MCP_PORT

Port to run the MCP server on (default: 8000). Used only for HTTP and SSE transport modes.

CB_MCP_DISABLED_TOOLS

Tools to disable. Accepts comma-separated tool names (e.g., 'tool_1,tool_2') or a file path containing one tool name per line.

CB_MCP_CONFIRMATION_REQUIRED_TOOLS

Comma-separated tool names that require user confirmation before execution. Also accepts a file path containing one tool name per line. Requires the MCP client to support elicitation.

MCP quality score · maturity, not trust · methodology

freshness

completeness

installability

documentation

stability

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Install this server

Claude Desktop (uvx)

{
  "mcpServers": {
    "mcp-server-couchbase": {
      "command": "uvx",
      "args": [
        "--",
        "couchbase-mcp-server"
      ],
      "env": {
        "CB_CONNECTION_STRING": "<cb_connection_string>",
        "CB_USERNAME": "<cb_username>",
        "CB_PASSWORD": "<your-cb_password>",
        "CB_CA_CERT_PATH": "<cb_ca_cert_path>",
        "CB_CLIENT_CERT_PATH": "<cb_client_cert_path>",
        "CB_CLIENT_KEY_PATH": "<cb_client_key_path>",
        "CB_MCP_READ_ONLY_MODE": "<cb_mcp_read_only_mode>",
        "CB_MCP_TRANSPORT": "<cb_mcp_transport>",
        "CB_MCP_HOST": "<cb_mcp_host>",
        "CB_MCP_PORT": "<cb_mcp_port>",
        "CB_MCP_DISABLED_TOOLS": "<cb_mcp_disabled_tools>",
        "CB_MCP_CONFIRMATION_REQUIRED_TOOLS": "<cb_mcp_confirmation_required_tools>"
      }
    }
  }
}

Claude Desktop (Docker)

{
  "mcpServers": {
    "mcp-server-couchbase": {
      "command": "docker",
      "args": [
        "run",
        "--rm",
        "-i",
        "--",
        "docker.io/couchbase/mcp-server:1.0.0"
      ],
      "env": {
        "CB_CONNECTION_STRING": "<cb_connection_string>",
        "CB_USERNAME": "<cb_username>",
        "CB_PASSWORD": "<your-cb_password>",
        "CB_CA_CERT_PATH": "<cb_ca_cert_path>",
        "CB_CLIENT_CERT_PATH": "<cb_client_cert_path>",
        "CB_CLIENT_KEY_PATH": "<cb_client_key_path>",
        "CB_MCP_READ_ONLY_MODE": "<cb_mcp_read_only_mode>",
        "CB_MCP_TRANSPORT": "<cb_mcp_transport>",
        "CB_MCP_HOST": "<cb_mcp_host>",
        "CB_MCP_PORT": "<cb_mcp_port>",
        "CB_MCP_DISABLED_TOOLS": "<cb_mcp_disabled_tools>",
        "CB_MCP_CONFIRMATION_REQUIRED_TOOLS": "<cb_mcp_confirmation_required_tools>"
      }
    }
  }
}

Verdict API

curl -s mcpindex.ai/api/v1/trust/server/io-github-couchbase-mcp-server-couchbase

Free-tier verdict as JSON: decision + dimensions + severity. Call it from your agent before it invokes a tool it just discovered.

Details

version: v1.0.0
category: Other
verdict expires: 2026-08-25
quality: 90 / 100
operator: couchbase

Listing

Listed from the official MCP registry. Unclaimed by its maintainer. Maintainer? Email us →

Provenance

Each verdict is bound to a hash of the exact description it judged, so a re-crawl that changes the text produces a new record rather than silently inheriting this one. Verdict history is hash-chained and anchored to Bitcoin via OpenTimestamps (latest confirmed at block 960,824). Verify it yourself.

Links

Repository →Website →