"FIRST" matching MCP servers:

A curriculum that teaches AI agents how to spend their own money. Sixteen lessons from "what is a wallet" to your first x402 purchase. Teacher, not butler — never signs, pays, or holds keys.

Long AI conversations fail in predictable ways. Context-First fixes all four: Failure Mode What Goes Wrong Context-First Solution Context Drift AI forgets earlier decisions and intent as the conversation grows context_loop + detect_drift continuously re-anchor every turn Silent Contradiction New inputs silently overrule established facts — the AI doesn't notice detect_conflicts compares every inp

Enables AI models to consult a clock, answering current time and elapsed conversation duration through MCP.

Enables AI models to answer time-related questions by providing tools for current time and elapsed time.

Enables AI assistants to answer time-related questions by consulting a live clock rather than relying on context, and provides a scaffold for adding further tools.

Enables developers to enforce versioned data contracts for MCP tool schemas, with additive-only evolution checked in CI, SHA-256 pinning against rug pulls, and signed handles instead of protocol sessions.

MCP server exposing quote and live cryptocurrency price tools, with both local (stdio) and cloud-deployed (HTTP) transports.

Provides a single MCP tool that returns the current time for a requested timezone, connectable to Claude Code and Claude desktop over stdio or Streamable HTTP.

This server integrates with Mozilla Developer Network (MDN) documentation to suggest CSS properties, check browser support, and provide implementation guidance with user consent mechanisms.

Enables querying hardcoded weather data for Delhi, Mumbai, and Bangalore through natural language, using a single stdio-transport tool that Claude can discover and call.

A tutorial MCP server that provides basic utility tools including time queries, arithmetic calculations, random number generation, string manipulation, and server information retrieval.

Provides an add tool for summing two numbers and a greeting://{name} resource that returns a personalized greeting over stdio.

A basic MCP server implementing a weather tool using Next.js and the Vercel MCP adapter.

Enables adding two numbers through a single MCP tool and returns the sum as text.

A simple MCP server that exposes a 'greet' tool which returns a friendly greeting for a given name.

A local MCP server that connects Claude Desktop to execute custom local code, such as generating custom greetings.

Exposes a greet tool that takes a name and returns a greeting message.

A real, runnable MCP server exposing three read-only tools (inventory, pricing, hours) with a CLI agent that lets Claude discover and call them.

A TypeScript-based server project with comprehensive development tooling including testing, linting, and build configurations.

A simple tutorial MCP server that provides a basic addition tool for adding two numbers together, demonstrating fundamental MCP server implementation.