---
title: "POST /call/SchemaDescriptions"
method: POST
path: "/call/SchemaDescriptions"
---

# POST /call/SchemaDescriptions

`POST /call/SchemaDescriptions`

## Request body

- object
  - `input` string, required
  - `__baml_options__` BamlOptions
    - `client_registry` ClientProperty, required
      - `name` string, required
      - `provider` string, required
      - `options` object, required

## Response `200`

Successful operation

- Schema
  - `nested_attrs` union[], required
    - union
      - string
      - Nested
        - `prop20` Nested2, required
          - `prop11` string
          - `prop12` string
        - `prop3` string
        - `prop4` string
  - `other_group` union, required
    - string
    - integer
  - `parens` string
  - `prop1` string
  - `prop2` union, required
    - Nested
      - `prop20` Nested2, required
        - `prop11` string
        - `prop12` string
      - `prop3` string
      - `prop4` string
    - string
  - `prop5` string[], required
  - `prop6` union, required
    - string
    - Nested[]
      - `prop20` Nested2, required
        - `prop11` string
        - `prop12` string
      - `prop3` string
      - `prop4` string

## Changes

- **2025-07-18** `a03327cea083` — 4 breaking
  - added the new required request property `__baml_options__/client_registry/name`
  - added the new required request property `__baml_options__/client_registry/options`
  - added the new required request property `__baml_options__/client_registry/provider`
  - the `__baml_options__/client_registry` request property type/format changed from ``/`` to `object`/``
- **2025-06-19** `a0c7a2bb989d` — 18 breaking, 2 warning, 16 info
  - the request property `__baml_options__/client_registry` became required
  - the `__baml_options__/client_registry` request property type/format changed from `object`/`` to ``/``
  - the response property `nested_attrs/items/` became nullable for the status `200`
  - the `nested_attrs/items/oneOf[#/components/schemas/Nested]/prop20/prop11` response's property type/format changed from ``/`` to `string`/`` for status `200`
  - …32 more
- …earlier changes not shown

[Full history](https://skmtc.dev/boundaryml/apis/baml-cli-serve/changes/call/SchemaDescriptions/post.md)

---

[API](https://skmtc.dev/boundaryml/apis/baml-cli-serve.md) · [All operations](https://skmtc.dev/boundaryml/apis/baml-cli-serve/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/boundaryml/baml-cli-serve/revisions/a03327cea083/schema)