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Run SQL queries and inspect database schemas through safe, visible MCP tools.
Grain SQL is an MCP server entry in ChatHome Skills, sourced from Official MCP Registry and scored 76/100. As a Model Context Protocol server, it exposes tools that MCP-compatible LLM clients such as Claude, Cursor, and Copilot can call directly, extending an agent's reach beyond its built-in capabilities. ChatHome Skills discovered this entry through its daily ingest of official registries and GitHub discovery queries, and re-verifies repository facts, freshness signals, and install metadata on every run. The quality score weighs official-registry presence, a working install command, license clarity, GitHub star trajectory, and repository freshness — the full formula is on the Sources page. The install command above is ready to copy. Review the last-pushed date and repository status before adding Grain SQL to a production agent workflow; the snapshot facts below are point-in-time values from the most recent ingest.
npx -y grain-tools@0.10.38Review the upstream source before running this command.
{
"_meta": {
"io.modelcontextprotocol.registry/official": {
"status": "active",
"isLatest": true,
"updatedAt": "2026-10-27T04:02:22.351043Z",
"publishedAt": "2026-10-27T04:02:22.351043Z",
"statusChangedAt": "2026-10-27T04:02:22.351043Z"
}
},
"server": {
"name": "io.github.pattrnlabs/grain",
"icons": [
{
"src": "https://grain.tools/icon.png",
"sizes": [
"256x256"
],
"mimeType": "image/png"
}
],
"title": "Grain SQL",
"$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
"version": "0.10.38",
"packages": [
{
"version": "0.10.38",
"transport": {
"type": "stdio"
},
"identifier": "grain-tools",
"runtimeHint": "npx",
"registryType": "npm",
"registryBaseUrl": "https://registry.npmjs.org",
"packageArguments": [
{
"name": "--stdio",
"type": "named",
"description": "Run Grain using stdio transport for local MCP clients."
}
],
"runtimeArguments": [
{
"type": "positional",
"value": "-y"
}
],
"environmentVariables": [
{
"name": "GRAIN_CONNECTIONS",
"format": "string",
"isSecret": true,
"description": "JSON array of Grain connection profiles for headless use."
},
{
"name": "GRAIN_MCP_SAFE_MODE",
"value": "true",
"format": "boolean",
"description": "Set to false to allow mutating SQL. Defaults to true."
},
{
"name": "GRAIN_MAX_ROWS",
"value": "10000",
"format": "number",
"description": "Maximum rows returned by query tools. Defaults to 10000."
}
]
}
],
"repository": {
"id": "1348511592",
"url": "https://github.com/pattrnlabs/grain",
"source": "github"
},
"websiteUrl": "https://grain.tools",
"description": "Run SQL queries and inspect database schemas through safe, visible MCP tools."
}
}