Schema | Langfuse MCP Server

Langfuse MCP Server

Describes the environment variables required to run the server.

Name	Required	Description	Default
`MCP_HOST`	No	Bind address when MCP_TRANSPORT=streamable-http	0.0.0.0
`MCP_PORT`	No	Port when MCP_TRANSPORT=streamable-http	8000
`MCP_BASE_URL`	No	Public base URL of the hosted server (required for OAuth)
`LANGFUSE_HOST`	No	Langfuse instance URL (cloud or self-hosted)	https://cloud.langfuse.com
`MCP_TRANSPORT`	No	Transport mode: stdio or streamable-http	stdio
`ALLOWED_EMAILS`	No	Comma-separated emails allowed to call tools (requires OAuth)
`LANGFUSE_TOOLS`	No	Comma-separated tool groups to load (e.g., 'traces,analytics')
`GOOGLE_CLIENT_ID`	No	Google OAuth client ID
`LANGFUSE_PAGE_LIMIT`	No	Traces per API page	100
`LANGFUSE_PUBLIC_KEY`	Yes	Langfuse public API key (required)
`LANGFUSE_SECRET_KEY`	Yes	Langfuse secret API key (required)
`GOOGLE_CLIENT_SECRET`	No	Google OAuth client secret
`ALLOWED_EMAIL_DOMAINS`	No	Comma-separated email domains allowed to call tools (requires OAuth)
`LANGFUSE_MCP_READ_ONLY`	No	Disable write operations (set to 'true' to enable)	false
`LANGFUSE_DEFAULT_PROJECT`	No	Default project name for multi-project mode
`LANGFUSE_INTERNAL_DOMAINS`	No	Comma-separated internal domains to exclude from analytics

Server capabilities have not been inspected yet.

Functions exposed to the LLM to take actions

Name	Description
No tools

Interactive templates invoked by user choice

Name	Description
No prompts

Contextual data attached and managed by the client

Name	Description
No resources

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