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

# POST /call/MakeSemanticContainer

`POST /call/MakeSemanticContainer`

## Request body

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

## Response `200`

Successful operation

- SemanticContainer
  - `class_1` ClassWithoutDone, required
    - `i_16_digits` integer, required
    - `s_20_words` string, required
  - `class_2` ClassWithBlockDone, required
    - `i_16_digits` integer, required
    - `s_20_words` string, required
  - `class_done_needed` ClassWithBlockDone, required
    - `i_16_digits` integer, required
    - `s_20_words` string, required
  - `class_needed` ClassWithoutDone, required
    - `i_16_digits` integer, required
    - `s_20_words` string, required
  - `final_string` string, required
  - `sixteen_digit_number` integer, required
  - `string_with_twenty_words` string, required
  - `three_small_things` SmallThing[], required
    - `i_16_digits` integer, required
    - `i_8_digits` integer, required

## 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` — 2 breaking, 2 warning
  - the request property `__baml_options__/client_registry` became required
  - the `__baml_options__/client_registry` request property type/format changed from `object`/`` to ``/``
  - removed the request property `__baml_options__/client_registry/clients`
  - removed the request property `__baml_options__/client_registry/primary`
- **2025-03-11** `e28c8736c70e` — 2 breaking, 2 info
  - removed the required property `class_1/literal_status` from the response with the `200` status
  - removed the required property `class_needed/literal_status` from the response with the `200` status
  - added the new optional request property `__baml_options__/client_registry/clients/items/retry_policy`
  - the request property `__baml_options__/client_registry` became optional

[Change history](https://skmtc.dev/boundaryml/apis/baml-cli-serve/changes/call/MakeSemanticContainer/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)