The Model Context Protocol (MCP) is an open standard created by Anthropic for connecting AI models to external tools, data sources, and services. Announced in November 2024, MCP provides a universal interface that enables any AI agent to discover, connect to, and interact with any MCP-compatible server, creating an interoperable ecosystem for agentic AI applications.
MCP defines a client-server architecture where AI applications (clients) can dynamically discover available tools, execute them, and share context through a standardized protocol. The specification includes tool discovery, execution, resource access, and prompt templates. The November 2025 spec release introduced asynchronous operations, statelessness, server identity, and official extensions, bringing the protocol closer to production readiness.
In 2025, Anthropic donated MCP to the Agentic AI Foundation (AAIF), a directed fund under the Linux Foundation co-founded by Anthropic, Block, and OpenAI with support from Google, Microsoft, AWS, Cloudflare, and Bloomberg. The protocol now has an official community-driven Registry for discovering MCP servers, and major AI providers including OpenAI and Google DeepMind have adopted it. Claude's directory includes over 75 MCP connectors, and the ecosystem continues to grow rapidly.
Developers building AI tools and agents who want to follow the standardized MCP protocol
Respan supports MCP for extending AI agent capabilities with external tools and data sources. Teams can use MCP servers through Respan's gateway to add tool use capabilities to their LLM applications while maintaining full observability over tool calls, costs, and performance.
Top companies in MCP Tooling you can use instead of Anthropic MCP.
Companies from adjacent layers in the AI stack that work well with Anthropic MCP.
Last verified: February 28, 2026