io.github.kalehdoo/warehouse-mcp

{
  "_meta": {
    "io.modelcontextprotocol.registry/official": {
      "status": "active",
      "isLatest": true,
      "updatedAt": "2026-05-06T21:52:22.38453Z",
      "publishedAt": "2026-05-06T21:52:22.38453Z",
      "statusChangedAt": "2026-05-06T21:52:22.38453Z"
    }
  },
  "server": {
    "name": "io.github.kalehdoo/warehouse-mcp",
    "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
    "version": "0.4.2",
    "packages": [
      {
        "version": "0.4.2",
        "transport": {
          "type": "stdio"
        },
        "identifier": "warehouse-mcp",
        "registryType": "npm",
        "runtimeArguments": [
          {
            "type": "positional",
            "value": "start",
            "isRequired": true,
            "description": "Boots the MCP server. Use 'init' for interactive setup or 'doctor' to diagnose configuration."
          }
        ],
        "environmentVariables": [
          {
            "name": "MCP_TRANSPORT",
            "default": "stdio",
            "description": "Set to 'stdio' for desktop AI clients (Claude Desktop, Cursor). Defaults to 'http'."
          },
          {
            "name": "WAREHOUSE_TYPE",
            "format": "string",
            "choices": [
              "postgres",
              "oracle",
              "redshift",
              "snowflake",
              "bigquery",
              "duckdb"
            ],
            "isRequired": true,
            "description": "Which warehouse to connect to. One of: postgres, oracle, redshift, snowflake, bigquery, duckdb. (DuckDB also handles MotherDuck via DUCKDB_PATH=md:<db>.)"
          },
          {
            "name": "MCP_API_KEYS",
            "format": "string",
            "isSecret": true,
            "description": "Comma-separated bearer keys with role and optional warehouse-role impersonation: 'key1:reader,key2:admin', 'key3:reader:set_role=alice'. Leave empty for stdio (OS process boundary is the trust boundary). Required for HTTP."
          },
          {
            "name": "DUCKDB_PATH",
            "format": "string",
            "description": "DuckDB file path, ':memory:', or 'md:<database>' for MotherDuck. Required when WAREHOUSE_TYPE=duckdb."
          },
          {
            "name": "MOTHERDUCK_TOKEN",
            "format": "string",
            "isSecret": true,
            "description": "MotherDuck service token. Required when DUCKDB_PATH starts with 'md:'."
          },
          {
            "name": "PG_HOST",
            "description": "Postgres host. Required when WAREHOUSE_TYPE=postgres. (Use REDSHIFT_HOST for Redshift.)"
          },
          {
            "name": "PG_DATABASE",
            "description": "Postgres database name."
          },
          {
            "name": "PG_USER",
            "description": "Postgres user."
          },
          {
            "name": "PG_PASSWORD",
            "isSecret": true,
            "description": "Postgres password."
          },
          {
            "name": "ORACLE_USER",
            "description": "Oracle user. Required when WAREHOUSE_TYPE=oracle."
          },
          {
            "name": "ORACLE_PASSWORD",
            "isSecret": true,
            "description": "Oracle password."
          },
          {
            "name": "ORACLE_CONNECT_STRING",
            "description": "Oracle Easy Connect (e.g. host:1521/SERVICE), TNS descriptor, or alias."
          },
          {
            "name": "SNOWFLAKE_ACCOUNT",
            "description": "Snowflake account identifier (e.g. xy12345.us-east-1). Required when WAREHOUSE_TYPE=snowflake."
          },
          {
            "name": "SNOWFLAKE_USER",
            "description": "Snowflake username."
          },
          {
            "name": "SNOWFLAKE_PRIVATE_KEY_PATH",
            "description": "Path to PKCS8 private key (.p8). Snowflake auth is key-pair only; password auth is not supported."
          },
          {
            "name": "BIGQUERY_PROJECT",
            "description": "GCP project id. Required when WAREHOUSE_TYPE=bigquery."
          },
          {
            "name": "GOOGLE_APPLICATION_CREDENTIALS",
            "description": "Path to BigQuery service-account JSON. Omit on GKE / Cloud Run with workload identity."
          },
          {
            "name": "GUARDRAIL_PII_MASK",
            "choices": [
              "on",
              "off"
            ],
            "default": "off",
            "description": "Set to 'on' to enable role-aware PII masking on result rows (emails, SSNs, phones, IPs, Luhn-validated CCs). Off by default."
          },
          {
            "name": "MCP_RATE_LIMIT_RPM",
            "default": "0",
            "description": "Per-principal token-bucket rate limit on tool invocations. 0 = disabled. Recommend 60 for production."
          }
        ]
      }
    ],
    "repository": {
      "url": "https://github.com/kalehdoo/warehouse-mcp",
      "source": "github"
    },
    "websiteUrl": "https://github.com/kalehdoo/warehouse-mcp",
    "description": "Production MCP server for Postgres, Oracle, Snowflake, BigQuery, Redshift, DuckDB, MotherDuck."
  }
}