io.github.sijunkim/db-gateway
145+ tools across 8 databases: MySQL, PostgreSQL, Redshift, MongoDB, Redis, Kafka, and more
Using io.github.sijunkim/db-gateway 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).
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-wireVerdict 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 2026-08-07).
Contracts can change after screening, with no version bump. The gate pins io.github.sijunkim/db-gateway’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
DBSEngines to enable, comma-separated. Only the listed engines get their tools registered. Example: mysql,redis,kafka
READ_ONLYSet to true to hide every write tool and restrict *_execute_query to SELECT-style statements. Recommended when pointing at production.
MYSQLMySQL connection string(s), semicolon-separated for multiple instances. Format: mysql://<user>:<password>@<host>:3306/<database>?alias=dev&default=true — alias is required.
POSTGRESQLPostgreSQL connection string(s), semicolon-separated. Format: postgresql://<user>:<password>@<host>:5432/<database>?alias=dev&ssl=true — alias is required.
REDSHIFTRedshift connection string(s), semicolon-separated. Format: redshift://<user>:<password>@<host>:5439/<database>?alias=dev&ssl=true — alias is required.
MONGODBMongoDB connection string(s), semicolon-separated. Format: mongodb://<user>:<password>@<host>:27017/<database>?alias=dev — alias is required.
REDISRedis connection string(s), semicolon-separated. Format: redis://:<password>@<host>:6379/0?alias=dev — leave the password empty for a no-auth instance. alias is required.
ELASTICSEARCHElasticsearch connection string(s), semicolon-separated. Format: elasticsearch://<user>:<password>@<host>:9200?alias=dev, or http(s)://<host>:9200?alias=dev for no auth. alias is required.
KAFKAKafka connection string(s), semicolon-separated. Format: kafka://<user>:<password>@<broker1>:9092,<broker2>:9092?alias=dev&mechanism=plain — alias is required.
DYNAMODB_REGIONAWS region for DynamoDB. DynamoDB is configured with discrete variables instead of a connection string.
DYNAMODB_ACCESS_KEY_IDAWS access key ID for DynamoDB.
DYNAMODB_SECRET_ACCESS_KEYAWS secret access key for DynamoDB.
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