> ## Documentation Index > Fetch the complete documentation index at: https://developers.namuai-lab.com/llms.txt > Use this file to discover all available pages before exploring further. # Create translation > Translates between Hausa and French, in both directions. Send JSON to translate text, or audio (multipart `file`, or the raw body) to translate speech. Add `include_audio` to also get the translation spoken. Text counts its characters divided by 15 as seconds; speech counts the audio sent. Needs the `translate` scope. ## OpenAPI ````yaml /api-reference/openapi.yaml post /v1/translate openapi: 3.1.0 info: title: Namu API version: 1.0.0 description: >- Speech recognition, speech synthesis, translation and a voice agent for Hausa, Zarma and French. Describes the API as it behaves on 8 November 2026. contact: name: Namu AI Lab email: contact@namuai.org url: https://www.namuai-lab.com servers: - url: https://api.namuai-lab.com description: Production security: - bearerAuth: [] tags: - name: Speech description: Text to speech. - name: Transcription description: Speech to text. - name: Translation description: Hausa and French, from text or speech. - name: Voice agent description: A spoken conversation in Hausa. Research preview. - name: Models and voices description: What the API serves. No key needed. - name: Account description: Your usage this month. paths: /v1/translate: post: tags: - Translation summary: Create translation description: >- Translates between Hausa and French, in both directions. Send JSON to translate text, or audio (multipart `file`, or the raw body) to translate speech. Add `include_audio` to also get the translation spoken. Text counts its characters divided by 15 as seconds; speech counts the audio sent. Needs the `translate` scope. operationId: createTranslation parameters: - name: include_audio in: query required: false description: >- `1`, `true` or `yes` to add the spoken translation (base64 WAV) to the answer. schema: type: string enum: - '1' - 'true' - 'yes' - name: source in: query required: false description: Only when the audio is the raw body. schema: $ref: '#/components/schemas/TranslateLanguage' - name: target in: query required: false description: Only when the audio is the raw body. schema: $ref: '#/components/schemas/TranslateLanguage' requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/TranslateTextRequest' example: text: Ina kwana? Yau za a yi zafi sosai. source: ha target: fr multipart/form-data: schema: type: object required: - file properties: file: type: string format: binary description: The recording. source: $ref: '#/components/schemas/TranslateLanguage' target: $ref: '#/components/schemas/TranslateLanguage' include_audio: type: string enum: - '1' - 'true' - 'yes' responses: '200': description: The translation. `characters` for text, `audio_seconds` for speech. headers: X-Request-Id: $ref: '#/components/headers/RequestId' content: application/json: schema: $ref: '#/components/schemas/Translation' example: model: translation source: ha target: fr source_text: Ina kwana? Yau za a yi zafi sosai. text: Bonjour ! Il va faire très chaud aujourd'hui. characters: 34 audio: null '400': $ref: '#/components/responses/BadRequest' '401': $ref: '#/components/responses/Unauthorized' '403': $ref: '#/components/responses/Forbidden' '413': $ref: '#/components/responses/TooLarge' '415': $ref: '#/components/responses/UnsupportedAudio' '422': $ref: '#/components/responses/NothingHeard' '429': $ref: '#/components/responses/TooManyRequests' '502': $ref: '#/components/responses/Upstream' components: schemas: TranslateLanguage: type: string enum: - ha - fr description: >- `ha` Hausa or `fr` French. The source defaults to the other language from the target. TranslateTextRequest: type: object required: - text properties: text: type: string maxLength: 2000 description: The text to translate. Up to 2,000 characters. source: $ref: '#/components/schemas/TranslateLanguage' target: type: string enum: - ha - fr default: fr description: The language to translate into. include_audio: type: boolean description: Also return the translation spoken (base64 WAV). Translation: type: object properties: model: type: string example: translation source: type: string example: ha target: type: string example: fr source_text: type: string description: The text sent, or what was heard in the audio. text: type: string description: The translation. characters: type: integer description: 'Text requests: characters translated.' audio_seconds: type: number description: 'Audio requests: length of the audio sent.' audio: type: - string - 'null' description: The translation spoken, base64 WAV, when asked for. Error: type: object properties: error: type: object properties: type: type: string description: A stable code, such as `invalid_api_key`. message: type: string description: What happened, in plain words. request_id: type: string headers: RequestId: description: A unique id for this request. Include it when you write to us. schema: type: string example: 3f2a9c1e5b7d4e8fa0c2b6d9e1f3a5c7 responses: BadRequest: description: >- The request was not usable: `invalid_request`, `invalid_json`, `missing_text`, `missing_file`, `empty_audio`, `unknown_voice`, `unsupported_language`, `unsupported_pair`, `unknown_persona`. content: application/json: schema: $ref: '#/components/schemas/Error' example: error: type: unknown_voice message: 'Unknown voice. Try one of: nadia, warm, fr, mouhamad.' request_id: 3f2a9c1e5b7d4e8fa0c2b6d9e1f3a5c7 Unauthorized: description: >- No key, not a Namu key, or a revoked key: `missing_api_key`, `invalid_api_key`, `key_revoked`. content: application/json: schema: $ref: '#/components/schemas/Error' example: error: type: missing_api_key message: 'Send your key as ''Authorization: Bearer namu_sk_...''.' request_id: 3f2a9c1e5b7d4e8fa0c2b6d9e1f3a5c7 Forbidden: description: >- `insufficient_scope` (the key may not call this endpoint) or `account_paused`. content: application/json: schema: $ref: '#/components/schemas/Error' TooLarge: description: >- `payload_too_large` (over 25 MB), `audio_too_long` (over 300 s) or `text_too_long` (over 2,000 characters). content: application/json: schema: $ref: '#/components/schemas/Error' UnsupportedAudio: description: >- `unsupported_audio`: the file could not be read. Send WAV, MP3, M4A, AAC, OGG, WebM or FLAC. content: application/json: schema: $ref: '#/components/schemas/Error' NothingHeard: description: '`nothing_heard`: no speech was found in the audio.' content: application/json: schema: $ref: '#/components/schemas/Error' TooManyRequests: description: >- `rate_limited` (too many requests this minute; see `Retry-After`) or `quota_exceeded` (this month's allowance is used). headers: Retry-After: description: Seconds to wait. Sent with `rate_limited` only. schema: type: integer content: application/json: schema: $ref: '#/components/schemas/Error' Upstream: description: >- `upstream_error`: the model did not answer. Try again; a request that fails counts nothing. content: application/json: schema: $ref: '#/components/schemas/Error' securitySchemes: bearerAuth: type: http scheme: bearer description: >- Your secret key: `Authorization: Bearer namu_sk_...`. Create one at https://www.namuai-lab.com/account/keys. ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.