Specification changedspecification/2025-06-18/index

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11# Specification

3<div id="enable-section-numbers" />

53[Model Context Protocol](https://modelcontextprotocol.io) (MCP) is an open protocol that

64enables seamless integration between LLM applications and external data sources and

75tools. Whether you're building an AI-powered IDE, enhancing a chat interface, or creating

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123121Explore the detailed specification for each protocol component:

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125<CardGroup cols={5}>

126 <Card title="Architecture" icon="sitemap" href="/specification/2025-06-18/architecture" />

123> **[Architecture](/specification/2025-06-18/architecture)**

127124

128 <Card title="Base Protocol" icon="code" href="/specification/2025-06-18/basic" />

125> **[Base Protocol](/specification/2025-06-18/basic)**

129126

130 <Card title="Server Features" icon="server" href="/specification/2025-06-18/server" />

127> **[Server Features](/specification/2025-06-18/server)**

131128

132 <Card title="Client Features" icon="user" href="/specification/2025-06-18/client" />

129> **[Client Features](/specification/2025-06-18/client)**

133130

134 <Card title="Contributing" icon="pencil" href="/community/contributing" />

135</CardGroup>

131> **[Contributing](/community/contributing)**

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