> For the complete documentation index, see [llms.txt](https://docs.moderncollections.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.moderncollections.io/sdks/codegen.md).

# Codegen

A machine-readable OpenAPI 3.1 spec for the **external REST API** (the creditor-API-key surface) now ships with these docs: [`api-reference/rest-api/openapi.yaml`](https://github.com/knollmeyersam-dot/MC-Docs/blob/main/api-reference/rest-api/openapi.yaml).

It is generated directly from the live application schema, so request/response shapes are field-accurate by construction — 62 paths / 71 operations, with the per-environment `servers` list and the Bearer (`ca_*`) security scheme attached. It covers the external integration surface only: placements, analytics, payments, intake, documents, exports, statements, agreements, creditor onboarding/settings, and the QuickBooks integration.

Feed it to your generator of choice:

```bash
openapi-generator-cli generate -i api-reference/rest-api/openapi.yaml -g typescript-fetch -o ./mc-client
# or
oapi-codegen -package mc api-reference/rest-api/openapi.yaml > client.go
```

{% hint style="info" %}
Always generate from the shipped `openapi.yaml` — it is curated and pruned to the supported external contract. The server's raw `/openapi.json` is not curated for codegen and is not a supported integration surface.
{% endhint %}

Regenerate your client whenever the spec version changes; the spec is regenerated whenever the API changes.

## See also

* [Python SDK](/sdks/python.md)
* [JavaScript SDK](/sdks/javascript.md)
* [REST API overview](/rest-api/overview.md)


---

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