---
applyTo: '**'
---

When you need the information about the Model Context Protocol (MCP) specification, you can fetch the latest document from the official MCP website.

# Overall
#fetch https://modelcontextprotocol.io/specification/2025-06-18.md

## Key Changes
#fetch https://modelcontextprotocol.io/specification/2025-06-18/changelog.md

## Architecture
#fetch https://modelcontextprotocol.io/specification/2025-06-18/architecture.md

# BaseProtocol
## Overview
#fetch https://modelcontextprotocol.io/specification/2025-06-18/basic.md

## Lifecycle
#fetch https://modelcontextprotocol.io/specification/2025-06-18/basic/lifecycle.md

## Transports
#fetch https://modelcontextprotocol.io/specification/2025-06-18/basic/transports.md

## Authorization
#fetch https://modelcontextprotocol.io/specification/2025-06-18/basic/authorization.md

## Security Best Practices
#fetch https://modelcontextprotocol.io/specification/2025-06-18/basic/security_best_practices.md

## Utilities
### Cancellation
#fetch https://modelcontextprotocol.io/specification/2025-06-18/basic/utilities/cancellation.md

### Ping
#fetch https://modelcontextprotocol.io/specification/2025-06-18/basic/utilities/ping.md

### Progress
#fetch https://modelcontextprotocol.io/specification/2025-06-18/basic/utilities/progress.md

# Client Features
## Roots
#fetch https://modelcontextprotocol.io/specification/2025-06-18/client/roots.md

## Sampling
#fetch https://modelcontextprotocol.io/specification/2025-06-18/client/sampling.md

## Elicitation
#fetch https://modelcontextprotocol.io/specification/2025-06-18/client/elicitation.md

# Server Features
## Overview
#fetch https://modelcontextprotocol.io/specification/2025-06-18/server.md

## Prompts
#fetch https://modelcontextprotocol.io/specification/2025-06-18/server/prompts.md

## Resources
#fetch https://modelcontextprotocol.io/specification/2025-06-18/server/resources.md

## Tools
#fetch https://modelcontextprotocol.io/specification/2025-06-18/server/tools.md

## Utilities
### Completion
#fetch https://modelcontextprotocol.io/specification/2025-06-18/server/utilities/completion.md
### Logging
#fetch https://modelcontextprotocol.io/specification/2025-06-18/server/utilities/logging.md
### Pagination
#fetch https://modelcontextprotocol.io/specification/2025-06-18/server/utilities/pagination.md

# Schema Reference
#fetch https://modelcontextprotocol.io/specification/2025-06-18/schema.md