{
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    "name": "NVIDIA NIM Speech API",
    "description": "NVIDIA Riva-powered speech NIMs. Exposes automatic speech recognition (Parakeet, Canary), neural machine translation, and text-to-speech (Magpie-TTS, FastPitch) through HTTP surfaces. (Production deployments typically use the gRPC adapter for streaming; this OpenAPI documents the REST surface exposed by the hosted endpoint.)\n\n\nContact Support:\n Name: NVIDIA Developer Support",
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    "createdAt": "2026-06-05T15:13:30.000Z",
    "updatedAt": "2026-06-05T15:13:31.000Z",
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          "item": [
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                      {
                        "key": "Accept",
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                        {
                          "description": "(Required) ",
                          "key": "file",
                          "type": "file",
                          "value": null
                        },
                        {
                          "description": "(Required) ",
                          "key": "model",
                          "value": "<string>",
                          "type": "text"
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                          "description": " (This can only be one of json,text,srt,vtt)",
                          "key": "response_format",
                          "value": "json",
                          "type": "text"
                        },
                        {
                          "key": "temperature",
                          "value": "<number>",
                          "type": "text"
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                      ]
                    },
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                      "raw": "{{baseUrl}}/v1/audio/transcriptions",
                      "host": [
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                      ],
                      "path": [
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                        "audio",
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                      ]
                    },
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                            "key": "Authorization",
                            "value": "Bearer <token>"
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                              "key": "file",
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                              "key": "model",
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                              "key": "temperature",
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                          "host": [
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                          ],
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                            "v1",
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                            "transcriptions"
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                      "status": "OK",
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                      "_postman_previewlanguage": "json",
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                              "key": "response_format",
                              "value": "json",
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                            {
                              "key": "temperature",
                              "value": "<number>",
                              "type": "text"
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                          ]
                        },
                        "url": {
                          "raw": "{{baseUrl}}/v1/audio/transcriptions",
                          "host": [
                            "{{baseUrl}}"
                          ],
                          "path": [
                            "v1",
                            "audio",
                            "transcriptions"
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                      },
                      "status": "Bad Request",
                      "code": 400,
                      "_postman_previewlanguage": "text",
                      "header": [],
                      "cookie": [],
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                            "key": "Authorization",
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                        "body": {
                          "mode": "formdata",
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                              "description": "(Required) ",
                              "key": "file",
                              "type": "file"
                            },
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                              "key": "model",
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                              "key": "language",
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                            {
                              "key": "temperature",
                              "value": "<number>",
                              "type": "text"
                            }
                          ]
                        },
                        "url": {
                          "raw": "{{baseUrl}}/v1/audio/transcriptions",
                          "host": [
                            "{{baseUrl}}"
                          ],
                          "path": [
                            "v1",
                            "audio",
                            "transcriptions"
                          ]
                        }
                      },
                      "status": "Unauthorized",
                      "code": 401,
                      "_postman_previewlanguage": "text",
                      "header": [],
                      "cookie": [],
                      "responseTime": null,
                      "body": null,
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              ],
              "id": "c93c2a19-f14f-41eb-8178-9cb8ba3c75e9",
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              "uid": "35240-c93c2a19-f14f-41eb-8178-9cb8ba3c75e9"
            },
            {
              "name": "speech",
              "item": [
                {
                  "name": "Synthesize Speech",
                  "id": "4ec8b760-2bfc-42aa-9d8a-b4b0f080e3fd",
                  "protocolProfileBehavior": {
                    "disableBodyPruning": true
                  },
                  "request": {
                    "method": "POST",
                    "header": [
                      {
                        "key": "Content-Type",
                        "value": "application/json"
                      },
                      {
                        "key": "Accept",
                        "value": "audio/mpeg"
                      }
                    ],
                    "body": {
                      "mode": "raw",
                      "raw": "{\n  \"model\": \"<string>\",\n  \"input\": \"<string>\",\n  \"voice\": \"<string>\",\n  \"response_format\": \"mp3\",\n  \"speed\": 1\n}",
                      "options": {
                        "raw": {
                          "headerFamily": "json",
                          "language": "json"
                        }
                      }
                    },
                    "url": {
                      "raw": "{{baseUrl}}/v1/audio/speech",
                      "host": [
                        "{{baseUrl}}"
                      ],
                      "path": [
                        "v1",
                        "audio",
                        "speech"
                      ]
                    },
                    "description": "Generate WAV/MP3 audio from text using a Riva TTS NIM (e.g. Magpie-TTS, FastPitch)."
                  },
                  "response": [
                    {
                      "id": "fadbfd92-ebbd-4a13-8d91-5a9728c7bfea",
                      "name": "Synthesized audio bytes.",
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                            "value": "audio/mpeg"
                          },
                          {
                            "description": "Added as a part of security scheme: bearer",
                            "key": "Authorization",
                            "value": "Bearer <token>"
                          }
                        ],
                        "body": {
                          "mode": "raw",
                          "raw": "{\n  \"model\": \"<string>\",\n  \"input\": \"<string>\",\n  \"voice\": \"<string>\",\n  \"response_format\": \"mp3\",\n  \"speed\": 1\n}",
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                            "raw": {
                              "headerFamily": "json",
                              "language": "json"
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                        },
                        "url": {
                          "raw": "{{baseUrl}}/v1/audio/speech",
                          "host": [
                            "{{baseUrl}}"
                          ],
                          "path": [
                            "v1",
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                      },
                      "status": "OK",
                      "code": 200,
                      "_postman_previewlanguage": "text",
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                          "key": "Content-Type",
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                            "key": "Content-Type",
                            "value": "application/json"
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                            "description": "Added as a part of security scheme: bearer",
                            "key": "Authorization",
                            "value": "Bearer <token>"
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                        "body": {
                          "mode": "raw",
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                              "headerFamily": "json",
                              "language": "json"
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                        "url": {
                          "raw": "{{baseUrl}}/v1/audio/speech",
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                          "path": [
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                            "audio",
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                      },
                      "status": "Bad Request",
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                      "_postman_previewlanguage": "text",
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                            "key": "Content-Type",
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                            "description": "Added as a part of security scheme: bearer",
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                              "headerFamily": "json",
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                        },
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                          "raw": "{{baseUrl}}/v1/audio/speech",
                          "host": [
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                          "path": [
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                            "audio",
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  "auth": {
    "type": "bearer",
    "bearer": [
      {
        "key": "token",
        "value": "{{bearerToken}}",
        "type": "string"
      }
    ]
  },
  "variable": [
    {
      "key": "baseUrl",
      "value": "https://integrate.api.nvidia.com"
    }
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}