MCPBridge
by manulthanura
Server Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
| PGHOST | No | PostgreSQL host | |
| PGPORT | No | PostgreSQL port | 5432 |
| PGUSER | No | PostgreSQL user | |
| PGDATABASE | No | PostgreSQL database name | |
| PGPASSWORD | No | PostgreSQL password | |
| DATABASE_URL | No | PostgreSQL connection string. Alternatively, use PGHOST, PGDATABASE, PGUSER, PGPASSWORD, PGPORT individually. | |
| MCPBRIDGE_MODE | No | read-only disables write_db entirely; read-write enables guarded writes | read-only |
| MCPBRIDGE_MAX_ROWS | No | Cap applied to SELECTs without a LIMIT | 100 |
| MCPBRIDGE_AUDIT_LOG | No | Audit trail path (rotates at 10 MB) | mcpbridge-audit.jsonl |
| MCPBRIDGE_HTTP_PORT | No | Port for the HTTP transport | 3920 |
| MCPBRIDGE_TRANSPORT | No | stdio or http | stdio |
| MCPBRIDGE_RATE_LIMIT | No | Requests allowed per window per client | 100 |
| MCPBRIDGE_BLOCKED_TABLES | No | Comma-separated extra tables to block (system credential catalogs are always blocked) | |
| MCPBRIDGE_DEFAULT_SCHEMA | No | Schema used by tools and resources by default | public |
| MCPBRIDGE_MAX_CONNECTIONS | No | Connection pool size | 10 |
| MCPBRIDGE_QUERY_TIMEOUT_MS | No | statement_timeout for every query in milliseconds | 30000 |
| MCPBRIDGE_RATE_WINDOW_SECONDS | No | Rate-limit window in seconds | 60 |
| MCPBRIDGE_HIGH_RISK_ROW_THRESHOLD | No | Estimated affected rows at which a write becomes high-risk | 100 |
| MCPBRIDGE_CONFIRMATION_TTL_SECONDS | No | How long a staged write waits for confirmation | 600 |
| MCPBRIDGE_SCHEMA_CACHE_TTL_SECONDS | No | Schema cache TTL in seconds | 300 |
Capabilities
Server capabilities have not been inspected yet.
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
No tools | |
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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