"AWS instance metadata service endpoint URL" matching MCP connectors:

Access control for text-to-SQL agents. Before the model sees the schema, schemagate keeps only the tables and columns the caller may read, picks the few a question needs, and refuses hidden ones at query time. This public endpoint serves a sample schema (no real data). Self-hosted it works with Postgres, Oracle, MySQL, SQL Server and SQLite.

Answering Service Quotes: the site's own MCP server — dataset, enquiry (enquiry = a human...

Read-only MyDankTank catalog, Journal, policy, and machine metadata service for adults 21+.

Read-only U.S. healthcare dataset metadata, schemas, immutable downloads, and checksums.

The BigQuery remote MCP server is a fully managed service that uses the Model Context Protocol to connect AI applications and LLMs to BigQuery data sources. It provides secure, standardized tools for AI agents to list datasets and tables, retrieve schemas, generate and execute SQL queries through natural language, and analyze data—enabling direct access to enterprise analytics data without requiring manual SQL coding.

Check a MongoDB URL shape. Credentials discarded.

Check a Postgres URL shape. Credentials discarded.

BookBrainz MCP — open book metadata (MetaBrainz / sister of MusicBrainz)

TheAudioDB MCP — community music metadata database.

Chrysai provides a hosted MCP server for AI-driven data operations. After connecting an MCP client to the endpoint, you can use MCP tools such as create_app, list_apps, read_data, write_data, update_data, delete_data, and update_app, plus schema resources, to manage persistent structured data through natural language.

Build and publish web apps from your AI client: live preview, Postgres, storage, public URL.

Custosa ToolsOAuth

com.custosa

Scans schema metadata to classify PHI, score HIPAA readiness, and generate compliant migrations.