"General information about the web" matching MCP connectors:

Grade MCP servers A to F with the open behavioral litmus. npm: full toolset; hosted: lookups only.

Verifies web animation vs WCAG 2.2.2/2.3.3: validated specs, deterministic reduced-motion-safe CSS.

Check AI work against requirements and return structured verdicts, findings, and repair steps.

Runs your code against a contract; returns HELD or BROKE at the exact input. Deterministic.

Test the voice agents you run: scored transcripts, pass/fail verdicts, latency and WER metrics.

Read-only MCP server for the OPERANT AI operating-agent calibration benchmark.

MCP server for the Fail Modes taxonomy — a knowledge base of AI system failure modes

PQS scores any prompt before the model runs. 8 dimensions. 5 frameworks. Pre-flight, not post-hoc.

The world's first named AI prompt quality score. Score, optimize, and compare LLM prompts before they hit any model. Free tier available. Built on PEEM, RAGAS, G-Eval, and MT-Bench frameworks. x402-native on Base.

Check if your MCP server is ready to publish on the MCP Registry, Smithery, or npm.

Drive real Android & iOS devices and web browsers from natural language for mobile + web QA. 145+ tools across device control, app management, automation sessions, browser automation, and flow recording / replay. Bearer-auth — get a token at robotactions.com → Profile → API Tokens.

MCP server providing access to the Scorecard API to evaluate and optimize LLM systems.

Multi-Agent AI Validation: X-Z-CS Trinity. 13 tools FREE. Auditable reasoning. v0.5.53

Evidence-governed screening of material decisions about physical assets and operational systems.

## Skill Catalog The library contains 42 public skills organized by Rails development concern. | Category | Examples | |----------|----------| | Planning | `create-prd`, `generate-tasks`, `plan-tickets` | | Testing | `plan-tests`, `write-tests`, `test-service`, `triage-bug` | | Code quality | `code-review`, `respond-to-review`, `security-check`, `refactor-code` | | Architecture and DDD | `define-domain-language`, `review-domain-boundaries`, `model-domain`, `review-architecture` | | Rails imple

MCP Spec Compliance MCP — audits any MCP server.json against the official Model Context Protocol

Your coding agent writes the feature — let it test it too. Long Horizon runs real browser tests and produces shareable execution reports for confident feature delivery.

Compare two JSON files deeply without worrying about key or array order. Detect missing, extra, an…