Best Core AI Skills & MCP Servers

L402 Lightning paywall + Depth-of-Identity score gate for MCP. Two integration shapes: (a) stdio MCP server exposing l402_gate_challenge / l402_gate_verify / l402_gate_score for agent clients; (b) drop-in Express middleware + MCP tool factory that combine

MCP server for GoldBean - 10 core paid APIs for AI Agents via x402 micropayments. Crypto price, weather, search, image-gen, code, AI chat and more. Pay-per-call with USDC on Base.

Trust-score any AI skill or MCP server from inside Claude Code, Cursor, or any MCP client. Accepts GitHub repos, npm packages, Smithery URLs, and OpenClaw skills. 15 signals (incl. OSV/KEV/EPSS vulnerability intelligence), safety scanning, OpenClaw frontm

A2ABench MCP server for public agent Q&A benchmarking: list questions, submit runs, and fetch leaderboard scores.

MCP server exposing PowForge Depth-of-Identity oracle to Claude Code, Cursor, and any MCP-compatible agent. Three tools: doi_score_lookup (priced via L402), doi_sign_vouch (unsigned-event builder), doi_score_verify (offline schnorr verification). The Ligh

MCP server validation CLI — fast pre-publish diagnostic for Model Context Protocol servers. Schema validation, tool/resource/prompt health checks, scorecard reporting, CI-ready exit codes.

Lightweight MCP server (Responses API core). OpenAI integration + web_search.

Shared TypeScript types and x402 payment-flow utilities for @xenarch/agent-mcp — Xenarch's non-custodial x402 MCP server.

MCP security trust layer. Scan packages, inspect repo MCP dependencies, generate Policy Gate setup, check exposure, and query abuse data.

VibeSpeed — Velocidade real do seu site. Core Web Vitals e PageSpeed via Google API em segundos.

Core utilities for MCP servers built with ModelFetch

Search scientific papers from any MCP-compatible AI tool. Raw experimental data from full-text studies — methods, results, quality scores, and 25+ metadata fields per paper.

Automatic MCP Server & OpenAI Tools Bridge for apcore

Drop-in trust boundary for MCP servers: trust-score gating, per-tool rate limits, prompt-injection prefilter, audit forwarding. Free OSS shield. ESM-only.

DNS of the Agent Web — identity, discovery & communication for AI agents. MCP-compatible agent:// protocol with mTLS, trust scores & capability search.

Lead Scoring Ai tools for AI agents. Capabilities: score lead, add lead, update lead activity. Built by MEOK AI Labs.

FirstDistro MCP server — manage customer health, churn risk, and journeys from Claude, Cursor, and other AI tools

Recruitment Ai automation via MCP. Includes generate job description, score cv, generate interview questions. By MEOK AI Labs.

MCP quality scanner and tool discovery for autonomous agents. Search 27,843+ indexed tools, check AEO (answer-engine-optimization) readiness scores, validate MCP server quality, find alternatives — the standard tool-validation layer before any agent calls

A Model Context Protocol (MCP) server for performing automated accessibility scans of web pages using Playwright and Axe-core

Advanced GitLab MCP server

MCP server that exposes the Langfuse REST API as tools — query traces, observations, sessions, scores, prompts, datasets, and metrics from any MCP client.

Unified MCP Streamable HTTP 2025-11-25 transport, OAuth 2.1 AS, lifecycle, install

MVA (Model-View-Agent) framework for the Model Context Protocol. Structured perception packages with Presenters, cognitive guardrails, self-healing errors, action consolidation, and tRPC-style type safety — so AI agents perceive and act on your data deter