> For clean Markdown of any page, append .md to the page URL. > For a complete documentation index, see https://docs.trevex.io/api-reference/lookup/llms.txt. > For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.trevex.io/_mcp/server. # Lookup > Unlock SME Growth with Simplified Trade Credit. ## API Docs - Lookup [Check whether a user exists](https://docs.trevex.io/api-reference/lookup/user-lookup.md) - Lookup [Search companies](https://docs.trevex.io/api-reference/lookup/company-search.md) - Lookup [List sub-industries](https://docs.trevex.io/api-reference/lookup/industry-hierarchy.md) ## OpenAPI Specification The raw OpenAPI 3.1 specification for this API is available at: - [OpenAPI JSON](https://docs.trevex.io/openapi.json) - [OpenAPI YAML](https://docs.trevex.io/openapi.yaml)