Secure Schema MCP
Server Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
| DATABASE_URL | Yes | SQLAlchemy connection URL. Treated as a secret by the registry manifest. | |
| ALLOWED_TABLES | No | Comma-separated, case-sensitive table and view allowlist. Production mode refuses to start without it. | |
| DATABASE_SCHEMA | No | Default schema or catalog namespace. Recommended for PostgreSQL. Locked against tool overrides in production. | |
| SECURE_SCHEMA_ENV | No | Set to 'production' or 'prod' for strict startup validation. | development |
| FASTMCP_CHECK_FOR_UPDATES | No | Set to 'off' for predictable stdio startup. | |
| FASTMCP_SHOW_SERVER_BANNER | No | Set to 'false' to suppress the startup banner. |
Capabilities
Features and capabilities supported by this server
| Capability | Details |
|---|---|
| tools | {
"listChanged": true
} |
| logging | {} |
| prompts | {
"listChanged": false
} |
| resources | {
"subscribe": false,
"listChanged": false
} |
| extensions | {
"io.modelcontextprotocol/ui": {}
} |
| experimental | {} |
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
| list_tablesA | Lists all user tables and views available in the current database. Use this to understand what architectural entities exist. |
| schema_overviewA | Summarizes available tables, views, primary keys, and foreign key relationships. Strictly constrained to structural metadata. Does not reveal data rows. |
| inspect_tableA | Exposes exact column names, types, nullability, primary keys, and foreign key relationships. Strictly constrained to structural layouts. Does not reveal data rows. |
Prompts
Interactive templates invoked by user choice
| Name | Description |
|---|---|
No prompts | |
Resources
Contextual data attached and managed by the client
| Name | Description |
|---|---|
No resources | |
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