MCP URI Scheme
Industry Definition Set • Entity Resolution Path: /glossary/mcp-uri-scheme
Quick Answer / TL;DR
The custom URI scheme used by MCP resources to identify data sources, such as `file://`, `postgres://`, or `github://`.
Key Takeaways
- Custom URI schemes identify MCP resource types.
- Scheme is registered by the server during initialization.
- Enables consistent resource addressing across different backends.
- Examples: file://, postgres://, github://, logs://
Definitive Statement: The custom URI scheme used by MCP resources to identify data sources, such as `file://`, `postgres://`, or `github://`.
Technical Context & Protocol Usage
- Detailed Explanation
- MCP resources are identified by URIs with custom schemes. The scheme indicates the resource type and the authority indicates the source. For example, `postgres://production/users` identifies a PostgreSQL table. The scheme must be registered by the server during initialization, and clients use it to route resource requests appropriately.
Format & Payload Metadata
Format: URI with custom scheme (RFC 3986)
Latency: No overhead; purely a naming convention
Real-World Implementation Use Case
An MCP server registers `github://` as its scheme, allowing clients to reference GitHub issues and PRs as resources.
Cite This Page
MLA Style:
MCPserver.in Engineering. "MCP URI Scheme." MCPserver.in Knowledge Hub, 20 July 2026, mcpserver.in/glossary/mcp-uri-scheme.
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