@elementalcollision
基本信息
An MCP server for agentic integration with the VAST Database and Catalog.
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An MCP server that provides a secure, structured interface between AI agents/LLMs and a VAST Data database. It exposes database schema, table metadata, sample data, and read-only SQL query execution through MCP resources and tools.
Clone the repository, copy .env.example to .env, fill in your VAST DB endpoint, access key, and secret key, install dependencies, and run the server via uvicorn (using scripts/run_server.py). All resources and tools require HTTP headers X-Vast-Access-Key and X-Vast-Secret-Key for authentication, and requests are rate‑limited by client IP.
vast://schemas, vast://tables, vast://metadata/tables/{table_name}, vast://tables/{table_name}vast_sql_query for read‑only SQL execution (configurable statement types)X-Vast-Access-Key and X-Vast-Secret-KeyMCP_DEFAULT_RATE_LIMIT environment variableMCP_ALLOWED_SQL_TYPES (defaults to SELECT)It acts as a controlled, read‑only gateway—enforcing authentication, rate limiting, and allowed SQL types while exposing structured schema/data via the MCP protocol, suitable for AI agent integration.
Python >=3.9, the MCP SDK (`mcp-sdk`), the VAST DB SDK (`vastdb`), `uvicorn` (ASGI server), `slowapi` (rate limiting), and `python-dotenv` for configuration.
All requests must include `X-Vast-Access-Key` and `X-Vast-Secret-Key` HTTP headers. Failure to provide valid credentials returns a 401 `UNAUTHENTICATED` error. Credentials should be managed securely by the agent orchestrator, never exposed in LLM prompts.
Yes, all resource and tool handlers are rate‑limited based on the client IP address. The default limit can be changed via the `MCP_DEFAULT_RATE_LIMIT` environment variable (e.g., `"10/minute"`). Exceeding the limit returns a 429 error.
Only statement types listed in the `MCP_ALLOWED_SQL_TYPES` environment variable are permitted. The default is `SELECT` alone, making the tool read‑only. This can be broadened (e.g., to allow `EXPLAIN`) by changing the variable.
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