Best Signa AI Skills & MCP Servers

OneSignal is a customer engagement platform that lets you send targeted push notifications, emails, SMS, and in-app messages, manage audiences, and track campaign performance. With the OneSignal MCP, manage your messaging directly from your AI assistant. Send push notifications,

Real-time status, pricing, and inference latency for 90+ AI tools. Agent-reported failure signals with live fallback routing. No auth required.

TalNexis gives your AI assistant real-time hiring intelligence across 98 top tech companies — Anthropic, Nvidia, Stripe, Anduril, Snowflake, and more. Data is scraped daily from public job boards. Ask about top hiring movers, AI/ML role trends, company-specific signals, or secto

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

AI Constraint Engine with AI Patch Firewall. 42 MCP tools. Patch Gateway (ALLOW/WARN/BLOCK verdicts), diff-native review (10 scored signals, hard escalation rules), Spec Compiler, Code Graph, Typed constraints, Python SDK, ROS2. Works with Claude Code, Cursor, Windsurf, Cline, Bo

Hosted MCP server for denial risk, prior authorization, reimbursement scoring, usage, and feedback. Includes no-signup trial keys and Smithery support.

Evaluate crypto token safety with real-time trust scores and structural risk signals. Identify potential market distress and impending collapses to safeguard your digital investments. Compare assets head-to-head using multi-dimensional security and compliance metrics.