> For the complete documentation index, see [llms.txt](https://api-docs.speechace.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://api-docs.speechace.com/getting-started/supported-languages.md).

# Supported Languages

Below are the available API dialects along with their corresponding request codes that should be used in the API requests:

| Dialect              | Code  |
| -------------------- | ----- |
| **English (US)**     | en-us |
| **English (UK)**     | en-gb |
| **French (France)**  | fr-fr |
| **French (Canada)**  | fr-ca |
| **Spanish (Spain)**  | es-es |
| **Spanish (Mexico)** | es-mx |

{% hint style="info" %}
**Note:** Not all APIs support all of the above languages. Exceptions will be specified in the respective API guides.
{% endhint %}

## Feature coverage by dialect

All dialects support core **pronunciation** scoring, but several endpoints and features are available only for certain dialects. The matrix below summarizes coverage at a glance.

**✓** supported · **✗** not supported. Regional variants **es-MX** and **fr-CA** match their parent dialect (**es-ES**, **fr-FR**) unless noted.

| Endpoint / feature                                                                         | en-US | en-GB | es-ES | es-MX | fr-FR | fr-CA |
| ------------------------------------------------------------------------------------------ | :---: | :---: | :---: | :---: | :---: | :---: |
| [**Score Word**](/api-reference/score-word.md) — pronunciation                             |   ✓   |   ✓   |   ✓   |   ✓   |   ✓   |   ✓   |
| Score Word — interference metrics                                                          |   ✓   |   ✓   |   ✗   |   ✗   |   ✗   |   ✗   |
| [**Score Text**](/api-reference/score-text.md) — pronunciation                             |   ✓   |   ✓   |   ✓   |   ✓   |   ✓   |   ✓   |
| Score Text — fluency (`include_fluency`)                                                   |   ✓   |   ✓   |   ✓   |   ✓   |   ✓   |   ✓   |
| Score Text — stress & intonation (`include_intonation`)                                    |   ✓   |   ✓   |   ✗   |   ✗   |   ✗   |   ✗   |
| Score Text — interference metrics (`include_interference_metrics`)                         |   ✓   |   ✓   |   ✗   |   ✗   |   ✗   |   ✗   |
| Score Word / Text — markup (`arpa_mark`)                                                   |   ✓   |   ✓   |   ✓   |   ✓   |   ✓   |   ✓   |
| Score Word / Text — Multiple Choice (`\n`-separated options)                               |   ✓   |   ✓   |   ✓   |   ✓   |   ✓   |   ✓   |
| [**Score Speech**](/api-reference/score-speech.md) — transcription, pronunciation, fluency |   ✓   |   ✓   |   ✓   |   ✓   |   ✓   |   ✓   |
| Score Speech — grammar, vocabulary, coherence                                              |   ✓   |   ✓   |   ✗   |   ✗   |   ✗   |   ✗   |
| Score Speech — relevance (`relevance_context`)                                             |   ✓   |   ✓   |   ✗   |   ✗   |   ✗   |   ✗   |
| Language detection (`detect_dialect` / `enforce_dialect`)                                  |   ✓   |   ✓   |   ✓   |   ✓   |   ✓   |   ✓   |
| [**Score Task**](/api-reference/score-task.md) — task achievement                          |   ✓   |   ✓   |   ✓   |   ✓   |   ✓   |   ✓   |
| [**Score Writing**](/api-reference/score-writing.md)                                       |   ✓   |   ✓   |   ✓   |   ✗   |   ✗   |   ✗   |
| [**Score Phone List**](/api-reference/score-phone-list.md)                                 |   ✓   |   ✓   |   ✓   |   ✓   |   ✓   |   ✓   |
| [**Validate Text**](/api-reference/validate-text.md)                                       |   ✓   |   ✓   |   ✓   |   ✓   |   ✓   |   ✓   |

{% hint style="info" %}
**Language scores (grammar, vocabulary, coherence).** For [Score Speech](/api-reference/score-speech.md) — and for the optional `include_speech_score` subscores of [Score Task](/api-reference/score-task.md) — only **pronunciation** and **fluency** are returned for Spanish and French. **Grammar, vocabulary, and coherence** are available for English (en-US, en-GB) only. Task-achievement scoring itself is available for all dialects above.

**Markup (`arpa_mark`).** Markup is supported for **all** dialects, using each dialect's own phonetic notation (see Phonetic notation). **Multiple Choice** — several `\n`-separated options in the `text` — is supported for **all** dialects, on both [Score Word](/api-reference/score-word.md) and [Score Text](/api-reference/score-text.md).
{% endhint %}