Resources, resource templates and content blocks support optional annotations that provide hints to clients about how to use or display the resource: 2.0.0 resources are data sources exposed by mcp servers. Resources represent data or files that an mcp client can read, and resource templates extend this concept by allowing clients to request dynamically generated resources based on.
Core operations resource operations access static and templated resources from mcp servers. The client calls resources/list to discover available resources or templates. Resource types mcp server resources come in two main forms:
These templates allow clients to construct valid resource uris by filling in parameters, useful for. Property value string remarks specifies the expected format of resources that can be generated from this template. Describe the bug on method listresourcesasync it's passed resources/list and it's returning nothing from tools because the correct method is 'tools/list'. The server registers a static resource or uri template (for example, stock:// {symbol}/earnings).
In this deep dive blog, i explain how to effectively use mcp resources, tools, and prompts to build the robust and reliable mcp servers. Binary resources contain raw binary data encoded in base64. This helps clients understand what type of content to expect when. Resource templates uri templates (rfc 6570) for dynamic resource construction.