Best Agent AI Skills & MCP Servers

Query live Upwork freelance market intelligence directly from your AI agent. Get real-time data about: - Trending skills with week-over-week change - Average fixed & hourly rates by category - Top hiring countries - Highest-budget jobs in last 24 hours - 7×24 activity heatmap

Behavioral trust scoring and MCP gateway proxy for 14,820+ MCP servers. Query real attestation data — interaction history, success rates, latency, uptime — before your agent executes sensitive operations. **8 tools** for trust evaluation, server discovery, and health monitoring:

Async message queue for AI agents. Self-provision queues via MCP or REST — no human signup required. Push messages to other agents, poll your own queue, and coordinate across sessions. Free tier: 5 queues, 1000 messages/day, 24h TTL.

QueueSim is a free Model Context Protocol server that gives Claude — and any MCP-speaking AI — the ability to run real discrete event queueing simulations inside a conversation. Ask "I run a 3-agent call center, 30 calls/hr, 4-min handle time — what's my wait?" and get an actual

BopMarket MCP server gives AI agents full marketplace access: search products across 5 platforms, view details, manage carts, checkout with payments, track orders, create listings, monitor prices, and manage accounts — all through 13 tools with human-in-the-loop spending controls

Security scanner for AI agent skills and MCP servers. Detects credential theft, data exfiltration, prompt injection, obfuscated code, and 80+ threat patterns. Free API + CLI (npx skillaudit). Premium deep scans via x402 micropayments.

Agent to Agent communication Platforms, Allows every MCP compatible agent to connect

270+ quality-scored API capabilities for AI agents — compliance, company data, financial validation, web intelligence across 27 countries.

Agent collaboration toolkit. Register agents, reputation ranks, service marketplace, agent-to-agent messaging.

PDF to Markdown API for AI agents. Pay $0.001 USDC per page via x402. No accounts needed.

Supericons helps coding agents find the right SVG icon by meaning, not just by file name. Search 20,000+ free icons, filter by library, retrieve SVG code, and recommend icon sets for app navigation, dashboards, tools, and product UI.

Unified MCP server giving LLMs and AI agents reliable lookup access to seven medical terminology systems — instead of inventing codes, the model queries the same APIs that WHO, NLM, and NIH publish for clinical and research use. **Terminologies covered:** - **ICD-11** — WHO's c

First Czech audiobook catalog MCP server with cross-partner price comparison. Aggregates Knihy Dobrovský, Martinus, Kosmas, Dobré-knihy, and Radiotéka. Read-only discovery for AI agents — search, browse genres, compare prices, find cheapest offers, lookup author/narrator p

Connect your AI agents to GitHub — manage repos, issues, PRs, workflows, and more

The Microsoft Learn MCP Server is a remote MCP Server that enables clients like GitHub Copilot and other AI agents to bring trusted and up-to-date information directly from Microsoft's official documentation. It supports streamable http transport, which is lightweight for clients

A comprehensive Model Context Protocol (MCP) server for the Starknet blockchain. This server provides AI agents with the ability to interact with Starknet networks, query blockchain data, manage wallets, and interact with smart contracts.

aTars MCP by aarna provides AI agents with structured access to crypto market signals, technical indicators, and sentiment analysis. The server exposes 18 tools across technical and sentiment categories, enabling agents to query market intelligence directly through MCP-compatibl

Provide AI agents and automation tools with contextual access to blockchain data including balances, tokens, NFTs, and contract metadata. Enable multi-chain support and deliver enhanced user experience with progress notifications for long-running queries. Facilitate seamless inte

Search Enji’s blog, Q&A, and help center to find grounded, source-backed answers to small-business marketing questions. Generate customer personas, brand voice summaries, and tailored social and blog ideas to plan content faster. Access free resources and tools to stay consistent

The base layer for AI agents. Five APIs: task deduplication, cost prediction, output validation, behavioral governance, and shared failure intelligence. 1,000 free credits/month, no card required.

Identity Intelligence for Agentic AI Workflows Connect Data. Power Intelligence.™ MCP Server v0.39.11 — Entity resolution knowledge for AI assistants MCP Endpoint https://mcp.senzing.com/mcp To get started, ask your AI assistant: "Add the Senzing MCP server at https://mcp.senzi

Travel Deals MCP is a Model Context Protocol server that lets AI agents search curated resort packages, vacation bundles, and travel deals in real time — no website, no SEO, no search engine.

# ToolRank MCP Server Score and optimize MCP tool definitions for AI agent discovery. The first ATO (Agent Tool Optimization) platform. ## Tools ### toolrank_score Analyzes MCP tool definitions and returns a ToolRank Score (0-100) measuring agent-readiness. Evaluates four dime

AgentMail is the email inbox API for AI agents. It gives agents their own email inboxes, like Gmail does for humans.