"LibreOffice Base" matching MCP connectors:

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

Pay-per-call MCP server. Vetted human experts review AI-generated content (text, images, video, audio, social posts), audit reasoning chains, run prepublish safety checks, and gate high-stakes actions for human approval. 7 paid tools at $1.00 each plus 4 free tools (list_offerings, list_expert_profiles, get_result, verify_certificate). Payment via x402, USDC on Base mainnet. Approved outputs receive an on-chain Taste content certificate downstream agents verify before consuming.

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.

Evaluates UI designs for WCAG accessibility issues automated scanners miss. Paid via x402 on Base.

Official MCP server for Qase — manage test cases, runs, suites, defects via AI tools.

AI dev tools + image generation, paid per-use with USDC on Base (x402).