> For the complete documentation index, see [llms.txt](https://docs.uptiq.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.uptiq.ai/platform-resources/skill-library/logic-and-data-integration.md).

# Logic & Data Integration

These are the plumbing skills — the ones that get data in from elsewhere, change its shape, and keep a workflow readable.

* [**API Call**](/platform-resources/skill-library/logic-and-data-integration/api-call.md) — invoke any external HTTP endpoint. The general-purpose way to reach a system that isn't in a connector catalog.
* [**Mapper**](/platform-resources/skill-library/logic-and-data-integration/mapper.md) — rename fields, reshape structures, convert types, supply defaults. The translation layer between one system's output and the next one's expectations.
* [**Pass Through**](/platform-resources/skill-library/logic-and-data-integration/pass-through.md) — a structural placeholder that returns its input unchanged. For giving divergent paths a named place to rejoin.


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