API Reference

The programmatic interfaces — the Lynk SQL query dialect and the REST endpoints for validation and catalog inspection.

Interfaces for querying and inspecting your Lynk semantic layer.

This section documents the programmatic interfaces exposed by Lynk — how to write queries against your semantic layer, and how to call Lynk's HTTP endpoints to validate the semantic layer and inspect the data catalog.

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What's in this section

Page	What it covers
Lynk SQL	The SQL dialect the agent uses internally — single-domain scope, entity references, metric(<entity>.<metric_name>), joins (default, USING('<join_name>'), USING(<common_feature_name>), ON), CTEs, supported statements
REST API	HTTP endpoints for validating the semantic layer and inspecting the data catalog (tables and columns)

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Where to go next:

• Need to understand how entities and metrics are defined? → Entity

• Want the authoring grammar behind sql: fields? → SQL expressions