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OpenAPI Specification
openapi: 3.2.0
info:
title: Krea Audio API
version: v1
description: Speech and audio generation endpoints
servers:
- url: https://api.krea.ai
description: Krea API
security:
- bearerAuth: []
tags:
- name: Audio
description: Speech and audio generation endpoints
paths:
/generate/audio/bytedance/seed-audio-1.0:
post:
tags:
- Audio
description: Generate speech, dialogue, and sound design from a text prompt with Seed Audio 1.0.
summary: Seed Audio 1.0
parameters:
- name: X-Webhook-URL
in: header
required: false
schema:
type: string
format: uri
description: URL to receive a POST request when the job completes. The webhook will receive the job data including results. When signing is configured, deliveries are signed with ECDSA P-256 (ES256); verify them with the keys at https://api.krea.ai/.well-known/jwks.json (see X-Krea-Webhook-* headers). Treat requests without these headers as unauthenticated.
requestBody:
content:
application/json:
example:
prompt: A floating village, with houses on stilts and boats zigzagging between.
schema:
type: object
properties:
prompt:
type: string
minLength: 1
maxLength: 2048
description: 'Text prompt describing the speech, dialogue, or sound to generate, e.g. "A calm female narrator says: ...".'
required:
- prompt
additionalProperties: false
responses:
'200':
description: The resulting job data. This will be returned in a pending state until the job is completed. See [`/jobs/{id}`](#tag/default/get/jobs/{id}) for retrieving the results.
content:
application/json:
schema:
type: object
properties:
job_id:
type: string
format: uuid
pattern: ^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$
status:
type: string
enum:
- backlogged
- queued
- scheduled
- processing
- sampling
- intermediate-complete
- completed
- failed
- cancelled
created_at:
type: string
format: date-time
pattern: ^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d:[0-5]\d(?:\.\d+)?(?:Z))$
completed_at:
type: 'null'
result:
type: 'null'
error:
type: object
properties:
code:
type: string
message:
type: string
required:
- code
additionalProperties: false
progress:
anyOf:
- type: number
minimum: 0
maximum: 1
- type: 'null'
required:
- job_id
- status
- created_at
- completed_at
- result
additionalProperties: false
'400':
description: The request body is invalid.
content:
application/json:
schema:
type: object
properties:
error:
type: string
required:
- error
additionalProperties: false
'401':
description: You are not authenticated.
content:
application/json:
schema:
type: object
properties:
error:
type: string
required:
- error
additionalProperties: false
'402':
description: You have run out of credits.
content:
application/json:
schema:
type: object
properties:
error:
type: string
required:
- error
additionalProperties: false
'429':
description: You have reached the maximum number of concurrent jobs.
content:
application/json:
schema:
type: object
properties:
error:
type: string
required:
- error
additionalProperties: false
operationId: postGenerateAudioBytedanceSeedAudio10
x-operation-id-source: derived
/generate/audio/elevenlabs/tts:
post:
tags:
- Audio
description: 'Convert text to natural-sounding speech with ElevenLabs voices. Defaults to eleven_multilingual_v2; pass model_id: eleven_v4 for ElevenLabs'' most expressive model (best voice cloning, 90+ languages) or eleven_v4_turbo for low-latency delivery.'
summary: ElevenLabs TTS
parameters:
- name: X-Webhook-URL
in: header
required: false
schema:
type: string
format: uri
description: URL to receive a POST request when the job completes. The webhook will receive the job data including results. When signing is configured, deliveries are signed with ECDSA P-256 (ES256); verify them with the keys at https://api.krea.ai/.well-known/jwks.json (see X-Krea-Webhook-* headers). Treat requests without these headers as unauthenticated.
requestBody:
content:
application/json:
example:
prompt: Immense tree city, houses in branches, residents swinging on vines, reminiscent of nature-centric anime.
schema:
type: object
properties:
prompt:
type: string
minLength: 1
maxLength: 2000
description: The text to convert to speech.
voice_id:
default: hpp4J3VqNfWAUOO0d1Us
description: 'ElevenLabs voice ID. Available voices: Bella (hpp4J3VqNfWAUOO0d1Us), Roger (CwhRBWXzGAHq8TQ4Fs17), Sarah (EXAVITQu4vr4xnSDxMaL), Laura (FGY2WhTYpPnrIDTdsKH5), Charlie (IKne3meq5aSn9XLyUdCD), George (JBFqnCBsd6RMkjVDRZzb), Callum (N2lVS1w4EtoT3dr4eOWO), River (SAz9YHcvj6GT2YYXdXww), Harry (SOYHLrjzK2X1ezoPC6cr), Liam (TX3LPaxmHKxFdv7VOQHJ), Alice (Xb7hH8MSUJpSbSDYk0k2), Matilda (XrExE9yKIg1WjnnlVkGX), Will (bIHbv24MWmeRgasZH58o), Jessica (cgSgspJ2msm6clMCkdW9), Eric (cjVigY5qzO86Huf0OWal), Chris (iP95p4xoKVk53GoZ742B), Brian (nPczCjzI2devNBz1zQrb), Daniel (onwK4e9ZLuTAKqWW03F9), Lily (pFZP5JQG7iQjIQuC4Bku), Adam (pNInz6obpgDQGcFmaJgB), Bill (pqHfZKP75CvOlQylNhV4).'
type: string
minLength: 1
model_id:
default: eleven_multilingual_v2
description: ElevenLabs model ID. Defaults to eleven_multilingual_v2. Use eleven_v4 for ElevenLabs' most expressive, highest-quality model (best voice cloning, 90+ languages), or eleven_v4_turbo for low-latency generation.
type: string
minLength: 1
required:
- prompt
additionalProperties: false
responses:
'200':
description: The resulting job data. This will be returned in a pending state until the job is completed. See [`/jobs/{id}`](#tag/default/get/jobs/{id}) for retrieving the results.
content:
application/json:
schema:
type: object
properties:
job_id:
type: string
format: uuid
pattern: ^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$
status:
type: string
enum:
- backlogged
- queued
- scheduled
- processing
- sampling
- intermediate-complete
- completed
- failed
- cancelled
created_at:
type: string
format: date-time
pattern: ^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d:[0-5]\d(?:\.\d+)?(?:Z))$
completed_at:
type: 'null'
result:
type: 'null'
error:
type: object
properties:
code:
type: string
message:
type: string
required:
- code
additionalProperties: false
progress:
anyOf:
- type: number
minimum: 0
maximum: 1
- type: 'null'
required:
- job_id
- status
- created_at
- completed_at
- result
additionalProperties: false
'400':
description: The request body is invalid.
content:
application/json:
schema:
type: object
properties:
error:
type: string
required:
- error
additionalProperties: false
'401':
description: You are not authenticated.
content:
application/json:
schema:
type: object
properties:
error:
type: string
required:
- error
additionalProperties: false
'402':
description: You have run out of credits.
content:
application/json:
schema:
type: object
properties:
error:
type: string
required:
- error
additionalProperties: false
'429':
description: You have reached the maximum number of concurrent jobs.
content:
application/json:
schema:
type: object
properties:
error:
type: string
required:
- error
additionalProperties: false
operationId: postGenerateAudioElevenlabsTts
x-operation-id-source: derived
/generate/audio/elevenlabs/music:
post:
tags:
- Audio
description: Generate a song or instrumental track from a text prompt with ElevenLabs Music. Vocals are included by default; set force_instrumental for instrumental-only output.
summary: ElevenLabs Music
parameters:
- name: X-Webhook-URL
in: header
required: false
schema:
type: string
format: uri
description: URL to receive a POST request when the job completes. The webhook will receive the job data including results. When signing is configured, deliveries are signed with ECDSA P-256 (ES256); verify them with the keys at https://api.krea.ai/.well-known/jwks.json (see X-Krea-Webhook-* headers). Treat requests without these headers as unauthenticated.
requestBody:
content:
application/json:
example:
prompt: Night market under a starry sky, spirits peddling wares, echoing spirited-away vibes.
schema:
type: object
properties:
prompt:
type: string
minLength: 1
maxLength: 4100
description: Text prompt describing the music to generate, e.g. genre, mood, instruments, and lyrics style.
music_length_ms:
description: Length of the track in milliseconds (3s to 600s). Omit to let the model choose.
type: integer
minimum: 3000
maximum: 600000
force_instrumental:
default: false
description: When true, generate instrumental music without vocals.
type: boolean
required:
- prompt
additionalProperties: false
responses:
'200':
description: The resulting job data. This will be returned in a pending state until the job is completed. See [`/jobs/{id}`](#tag/default/get/jobs/{id}) for retrieving the results.
content:
application/json:
schema:
type: object
properties:
job_id:
type: string
format: uuid
pattern: ^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$
status:
type: string
enum:
- backlogged
- queued
- scheduled
- processing
- sampling
- intermediate-complete
- completed
- failed
- cancelled
created_at:
type: string
format: date-time
pattern: ^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d:[0-5]\d(?:\.\d+)?(?:Z))$
completed_at:
type: 'null'
result:
type: 'null'
error:
type: object
properties:
code:
type: string
message:
type: string
required:
- code
additionalProperties: false
progress:
anyOf:
- type: number
minimum: 0
maximum: 1
- type: 'null'
required:
- job_id
- status
- created_at
- completed_at
- result
additionalProperties: false
'400':
description: The request body is invalid.
content:
application/json:
schema:
type: object
properties:
error:
type: string
required:
- error
additionalProperties: false
'401':
description: You are not authenticated.
content:
application/json:
schema:
type: object
properties:
error:
type: string
required:
- error
additionalProperties: false
'402':
description: You have run out of credits.
content:
application/json:
schema:
type: object
properties:
error:
type: string
required:
- error
additionalProperties: false
'429':
description: You have reached the maximum number of concurrent jobs.
content:
application/json:
schema:
type: object
properties:
error:
type: string
required:
- error
additionalProperties: false
operationId: postGenerateAudioElevenlabsMusic
x-operation-id-source: derived
/generate/audio/elevenlabs/music-v2:
post:
tags:
- Audio
description: Generate a song or instrumental track from a text prompt with ElevenLabs Music v2 — better prompt adherence, composition, and vocal delivery than v1, plus multilingual output. Vocals are included by default; set force_instrumental for instrumental-only output.
summary: ElevenLabs Music v2
parameters:
- name: X-Webhook-URL
in: header
required: false
schema:
type: string
format: uri
description: URL to receive a POST request when the job completes. The webhook will receive the job data including results. When signing is configured, deliveries are signed with ECDSA P-256 (ES256); verify them with the keys at https://api.krea.ai/.well-known/jwks.json (see X-Krea-Webhook-* headers). Treat requests without these headers as unauthenticated.
requestBody:
content:
application/json:
example:
prompt: An old lighthouse on a rugged coastline, waves crashing at its base.
schema:
type: object
properties:
prompt:
type: string
minLength: 1
maxLength: 4100
description: Text prompt describing the music to generate, e.g. genre, mood, instruments, and lyrics style.
music_length_ms:
description: Length of the track in milliseconds (3s to 600s). Omit to let the model choose.
type: integer
minimum: 3000
maximum: 600000
force_instrumental:
default: false
description: When true, generate instrumental music without vocals.
type: boolean
required:
- prompt
additionalProperties: false
responses:
'200':
description: The resulting job data. This will be returned in a pending state until the job is completed. See [`/jobs/{id}`](#tag/default/get/jobs/{id}) for retrieving the results.
content:
application/json:
schema:
type: object
properties:
job_id:
type: string
format: uuid
pattern: ^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$
status:
type: string
enum:
- backlogged
- queued
- scheduled
- processing
- sampling
- intermediate-complete
- completed
- failed
- cancelled
created_at:
type: string
format: date-time
pattern: ^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d:[0-5]\d(?:\.\d+)?(?:Z))$
completed_at:
type: 'null'
result:
type: 'null'
error:
type: object
properties:
code:
type: string
message:
type: string
required:
- code
additionalProperties: false
progress:
anyOf:
- type: number
minimum: 0
maximum: 1
- type: 'null'
required:
- job_id
- status
- created_at
- completed_at
- result
additionalProperties: false
'400':
description: The request body is invalid.
content:
application/json:
schema:
type: object
properties:
error:
type: string
required:
- error
additionalProperties: false
'401':
description: You are not authenticated.
content:
application/json:
schema:
type: object
properties:
error:
type: string
required:
- error
additionalProperties: false
'402':
description: You have run out of credits.
content:
application/json:
schema:
type: object
properties:
error:
type: string
required:
- error
additionalProperties: false
'429':
description: You have reached the maximum number of concurrent jobs.
content:
application/json:
schema:
type: object
properties:
error:
type: string
required:
- error
additionalProperties: false
operationId: postGenerateAudioElevenlabsMusicV2
x-operation-id-source: derived
/generate/audio/elevenlabs/music-v2.5:
post:
tags:
- Audio
description: Generate a song or instrumental track from a text prompt with ElevenLabs Music v2.5, the latest ElevenLabs music model. Vocals are included by default; set force_instrumental for instrumental-only output.
summary: ElevenLabs Music v2.5
parameters:
- name: X-Webhook-URL
in: header
required: false
schema:
type: string
format: uri
description: URL to receive a POST request when the job completes. The webhook will receive the job data including results. When signing is configured, deliveries are signed with ECDSA P-256 (ES256); verify them with the keys at https://api.krea.ai/.well-known/jwks.json (see X-Krea-Webhook-* headers). Treat requests without these headers as unauthenticated.
requestBody:
content:
application/json:
example:
prompt: Majestic fjords with small fishing villages nestled at their bases.
schema:
type: object
properties:
prompt:
type: string
minLength: 1
maxLength: 4100
description: Text prompt describing the music to generate, e.g. genre, mood, instruments, and lyrics style.
music_length_ms:
description: Length of the track in milliseconds (3s to 600s). Omit to let the model choose.
type: integer
minimum: 3000
maximum: 600000
force_instrumental:
default: false
description: When true, generate instrumental music without vocals.
type: boolean
required:
- prompt
additionalProperties: false
responses:
'200':
description: The resulting job data. This will be returned in a pending state until the job is completed. See [`/jobs/{id}`](#tag/default/get/jobs/{id}) for retrieving the results.
content:
application/json:
schema:
type: object
properties:
job_id:
type: string
format: uuid
pattern: ^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$
status:
type: string
enum:
- backlogged
- queued
- scheduled
- processing
- sampling
- intermediate-complete
- completed
- failed
- cancelled
created_at:
type: string
format: date-time
pattern: ^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d:[0-5]\d(?:\.\d+)?(?:Z))$
completed_at:
type: 'null'
result:
type: 'null'
error:
type: object
properties:
code:
type: string
message:
type: string
required:
- code
additionalProperties: false
progress:
anyOf:
- type: number
minimum: 0
maximum: 1
- type: 'null'
required:
- job_id
- status
- created_at
- completed_at
- result
additionalProperties: false
'400':
description: The request body is invalid.
content:
application/json:
schema:
type: object
properties:
error:
type: string
required:
- error
additionalProperties: false
'401':
description: You are not authenticated.
content:
application/json:
schema:
type: object
properties:
error:
type: string
required:
- error
additionalProperties: false
'402':
description: You have run out of credits.
content:
application/json:
schema:
type: object
properties:
error:
type: string
required:
- error
additionalProperties: false
'429':
description: You have reached the maximum number of concurrent jobs.
content:
application/json:
schema:
type: object
properties:
error:
type: string
required:
- error
additionalProperties: false
operationId: postGenerateAudioElevenlabsMusicV25
x-operation-id-source: derived
components:
securitySchemes:
bearerAuth:
scheme: bearer
bearerFormat: Bearer
type: http
x-provenance:
method: harvested
publisher: Krea
source: https://api.krea.ai/openapi.json
note: split by refine-openapis from the provider's own published document, verified by fetch (openapi/_original/*.fetch.json);
stamped by stamp-openapi-provenance.py (roadmap#793)