MCP Public APIs
Server Quality Checklist
Latest release: v0.1.0
- Disambiguation5/5
The two tools have completely distinct purposes: one lists existing data (list_categories) and one updates the underlying data source (update_index). There is no overlap in functionality or ambiguity about when to use each tool.
Naming Consistency5/5Both tools follow a consistent verb_noun naming pattern (list_categories, update_index) with clear, descriptive names that indicate their actions and targets. The naming style is uniform throughout.
Tool Count2/5With only 2 tools, the server feels severely under-scoped for a 'Public APIs' domain. This minimal set lacks essential operations like searching APIs, getting API details, or filtering categories, which are core expectations for such a service.
Completeness2/5The tool surface is significantly incomplete for a public APIs index. While it covers index maintenance (update_index) and basic listing (list_categories), it misses fundamental operations like retrieving specific API information, searching APIs by criteria, or accessing API endpoints, leaving agents unable to perform typical API discovery tasks.
Average 4/5 across 2 of 2 tools scored.
See the Tool Scores section below for per-tool breakdowns.
- No community issues in the last 6 months
- 0 commits in the last 12 weeks
- No stable releases found
- No critical vulnerability alerts
- No high-severity vulnerability alerts
- No code scanning findings
- CI status not available
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How is the quality score calculated?
The overall quality score combines two components: Tool Definition Quality (70%) and Server Coherence (30%).
Tool Definition Quality measures how well each tool describes itself to AI agents. Every tool is scored 1–5 across six dimensions: Purpose Clarity (25%), Usage Guidelines (20%), Behavioral Transparency (20%), Parameter Semantics (15%), Conciseness & Structure (10%), and Contextual Completeness (10%). The server-level definition quality score is calculated as 60% mean TDQS + 40% minimum TDQS, so a single poorly described tool pulls the score down.
Server Coherence evaluates how well the tools work together as a set, scoring four dimensions equally: Disambiguation (can agents tell tools apart?), Naming Consistency, Tool Count Appropriateness, and Completeness (are there gaps in the tool surface?).
Tiers are derived from the overall score: A (≥3.5), B (≥3.0), C (≥2.0), D (≥1.0), F (<1.0). B and above is considered passing.
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