Best Calls AI Skills & MCP Servers

Multiplexer for MCP tool calls — parallel execution, batching, caching, and pipelining for any MCP server

The Brain Layer for AI Trading Agents — composite quant calls across 5 exchanges (Hyperliquid, Binance, Bybit, OKX, Bitget), cross-venue arb, regime-aware classification, and a 20-skill catalog via MCP.

MarketIntelLabs fork of the Paperclip adapter for Hermes Agent — with adapter-owned status transitions, an in-process MCP tool server (paperclip-mcp) that replaces curl-in-prompt with structured tool calls, MIL heartbeat prompt templates, and OpenRouter m

Zephex MCP — codebase intelligence tools for AI coding agents. stdio server that runs locally, reads your project files, and proxies AI calls to the Zephex backend.

MCP server for Agon Gateway discovery, calls, Tokens market data, and generic signer-hook auth.

Monetize any HTTP API or MCP server in one line — no monthly fee, 3,000 calls free, then 3% only when your API earns. Non-custodial USDC billing on Base (~2s settlement, ~60x cheaper than card rails), x402-compatible. Also ships 8 free real-API demo tools

A tiny TypeScript approval gate for AI tool calls, MCP tools, and human-in-the-loop workflows.

Official MCP server for OmniDimension. Drive voice agents, dispatch calls, and manage knowledge bases from Claude, Cursor, Windsurf, and any MCP client.

BLACK_WALL MCP server — a pre-action risk check your AI agent calls before any irreversible action (send email, move money, run SQL, delete data).

Triage walk-ins, calls, OpenTable, Google Reserve into one queue.

Supply chain intelligence APIs for AI agents. Real-time freight rates (85+ carriers), crypto/forex/commodity prices, port congestion (NOAA), shipping lanes, economic indicators (FRED), and Cerebrix AI inference. 100 free calls/day, no signup. x402 USDC micropayments, ERC-8004 t

36+ crypto security & intelligence tools via x402 micropayments. Free trials on every tool (1-5 free calls per tool, resets weekly). Deep contract audits ($0.05, 1 free), honeypot detection ($0.02, 3 free), whale decoding ($0.15, 1 free), rug pull prediction ($0.10, 1 free), copy

Search live food safety data from FDA, FSIS, CDC, and city health departments (NYC, Chicago, SF, Seattle, Boston). 5 tools: search recalls, outbreaks, alerts, restaurant inspection articles, and food safety guides. Data aggregated from 25+ public government sources via Panko Aler

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