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> For a complete documentation index, see https://developer.tradespace.io/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://developer.tradespace.io/_mcp/server.

# LookupUnion

GraphQL union

A global or account-specific lookup value.

Reference: https://developer.tradespace.io/api-reference/types/unions/lookup-union

## Definition

```graphql
union LookupUnion = AccountLookup | Lookup
```