docker-facts
What this MCP does
Checks Docker Hub for image tags and reports their availability, sizes, and supported platforms.
Tools
Input schema
{'type': 'object', 'required': ['name'], 'properties': {'tag': {'type': 'string', 'x-in': 'query', 'default': 'latest', 'description': 'Tag to check, e.g. "20-alpine". Defaults to "latest".'}, 'name': {'type': 'string', 'x-in': 'query', 'description': 'Docker image name as you would write it in a FROM line: "node", "postgres", "grafana/grafana". Official images may omit the "library/" prefix.'}}}
Output schema
{'type': 'object', 'required': ['image', 'tag', 'exists', 'meaning'], 'properties': {'tag': {'type': 'string'}, 'image': {'type': 'string'}, 'digest': {'type': 'string', 'nullable': True, 'description': 'Content digest, for pinning.'}, 'exists': {'type': 'boolean', 'description': 'Whether this exact image:tag exists on Docker Hub.'}, 'status': {'type': 'string', 'nullable': True, 'description': 'Docker Hub tag status, e.g. "active".'}, 'meaning': {'type': 'string', 'description': 'One sentence, safe to show a user verbatim.'}, 'size_mb': {'type': 'number', 'nullable': True, 'description': 'Compressed size in MB.'}, 'platforms': {'type': 'array', 'items': {'type': 'string'}, 'description': 'os/arch strings this tag was built for, e.g. "linux/arm64".'}, 'reference': {'type': 'string', 'description': 'The full reference, safe to paste into a FROM line.'}, 'suggestion': {'type': 'string', 'nullable': True, 'description': 'Present only on a miss: the most recently updated real tag.'}, 'image_exists': {'type': 'boolean', 'description': 'Present only on a miss. Distinguishes a wrong tag from a wrong image name.'}, 'last_updated': {'type': 'string', 'nullable': True, 'description': 'When the tag was last pushed (ISO 8601). A tag untouched for years is usually the wrong choice.'}, 'available_tags': {'type': 'array', 'items': {'type': 'string'}, 'description': 'Present only on a miss: real tags, newest first, so the caller can correct itself.'}, 'supports_amd64': {'type': 'boolean'}, 'supports_arm64': {'type': 'boolean', 'description': 'Answers the Apple Silicon and Graviton question directly.'}}}
Input schema
{'type': 'object', 'required': ['name'], 'properties': {'name': {'type': 'string', 'x-in': 'query', 'description': 'Docker image name as you would write it in a FROM line: "node", "postgres", "grafana/grafana". Official images may omit the "library/" prefix.'}}}
Output schema
{'type': 'object', 'properties': {'image': {'type': 'string'}, 'pulls': {'type': 'integer', 'nullable': True}, 'stars': {'type': 'integer', 'nullable': True}, 'exists': {'type': 'boolean'}, 'hub_url': {'type': 'string', 'description': 'Page a human can open.'}, 'official': {'type': 'boolean', 'description': 'True for Docker Official Images (the "library" namespace).'}, 'description': {'type': 'string', 'nullable': True}, 'is_archived': {'type': 'boolean', 'description': 'Archived images still pull but receive no further updates, including security patches.'}, 'last_updated': {'type': 'string', 'nullable': True}}}
Input schema
{'type': 'object', 'required': ['name'], 'properties': {'name': {'type': 'string', 'x-in': 'query', 'description': 'Docker image name as you would write it in a FROM line: "node", "postgres", "grafana/grafana". Official images may omit the "library/" prefix.'}, 'limit': {'type': 'integer', 'x-in': 'query', 'default': 25, 'maximum': 100, 'minimum': 1, 'description': 'How many tags to return, 1 to 100. Defaults to 25.'}}}
Output schema
{'type': 'object', 'properties': {'tags': {'type': 'array', 'items': {'type': 'object', 'properties': {'tag': {'type': 'string'}, 'size_mb': {'type': 'number', 'nullable': True}, 'platforms': {'type': 'array', 'items': {'type': 'string'}}, 'last_updated': {'type': 'string', 'nullable': True}}}}, 'count': {'type': 'integer'}, 'image': {'type': 'string'}, 'exists': {'type': 'boolean'}, 'newest_first': {'type': 'boolean', 'description': 'Tags are ordered by last update, most recent first.'}}}
Recent tool changes
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