OpenTelemetry PHP

McpIncubatingMetrics
in

Application

Metrics for mcp.

May contain @experimental Semantic Conventions which may change or be removed in the future.

MCP_CLIENT_OPERATION_DURATION = 'mcp.client.operation.duration': The duration of the MCP request or notification as observed on the sender from the time it was sent until the response or ack is received.
MCP_CLIENT_SESSION_DURATION = 'mcp.client.session.duration': The duration of the MCP session as observed on the MCP client.
MCP_SERVER_OPERATION_DURATION = 'mcp.server.operation.duration': MCP request or notification duration as observed on the receiver from the time it was received until the result or ack is sent.
MCP_SERVER_SESSION_DURATION = 'mcp.server.session.duration': The duration of the MCP session as observed on the MCP server.

The duration of the MCP request or notification as observed on the sender from the time it was sent until the response or ack is received.


    public
        mixed
    MCP_CLIENT_OPERATION_DURATION
    = 'mcp.client.operation.duration'

Instrument: histogram Unit: s

The duration of the MCP session as observed on the MCP client.


    public
        mixed
    MCP_CLIENT_SESSION_DURATION
    = 'mcp.client.session.duration'

Instrument: histogram Unit: s

MCP request or notification duration as observed on the receiver from the time it was received until the result or ack is sent.


    public
        mixed
    MCP_SERVER_OPERATION_DURATION
    = 'mcp.server.operation.duration'

Instrument: histogram Unit: s

The duration of the MCP session as observed on the MCP server.


    public
        mixed
    MCP_SERVER_SESSION_DURATION
    = 'mcp.server.session.duration'

Instrument: histogram Unit: s