Best Alternatives to Sphere Marketplace

Valet

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Packkit

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Claude Task Master

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Parses PRDs into structured tasks, expands implementation steps, and manages AI development work across multiple model providers.

Skill of Skills

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Quality-ranked, cross-platform directory of AI coding skills, plugins and MCP servers.

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Architecture guardrails for AI-written code: dependency graph, impact, dead code, CI gate

Formio MCP

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Exogram Authority Runtime

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Model Context Protocol server for the Exogram Authority Runtime.

Pangolinfo Amazon Data MCP

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Real-time Amazon, WIPO & PACER data for AI agents — 19 tools via the MCP protocol.

MeltFlex AI

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AI interior design — restyle rooms, place furniture, and virtually stage spaces from a photo.