Data & search · harness

mcp-toolbox

Google's open-source MCP server that connects AI agents directly to enterprise databases including BigQuery, PostgreSQL, MySQL, Oracle, and Spanner. Exposes prebuilt SQL exploration tools and a framework for custom parameterized database tools with built-in auth, connection pooling, and OpenTelemetry observability.

Connects to: BigQuery, PostgreSQL, MySQL, Oracle, Spanner, CockroachDB, Redis, MongoDB · · Apache-2.0 16,180★

Use it with an AI agent

Loadbay is an MCP server, so an agent can search the catalog and find this harness:

claude mcp add --transport http loadbay https://loadbay.xyz/api/mcp

Source: https://github.com/googleapis/mcp-toolbox
This harness as JSON: /api/harnesses/mcp-toolbox
Agent setup: /setup.md
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