MCP-Zero

Active tool discovery for autonomous agents: model requests tools by requirement; hierarchical semantic routing over 308 servers / 2,797 tools with ~98% token reduction (APIBank).

tool-discovery

Stars: 517
Adoption surface: complex
Autonomy: bounded
Recovery: none
License: ✅ open-source
Category: Progressive disclosure harnesses

Repository ↗ Example: APIBank experiment ↗

Related in Progressive disclosure harnesses

Headroom
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ToolGen

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