KIE.AIAPI Documentation

Self-contained reference for the KIE.AI model marketplace and core APIs. Suno music, Veo3 video, Runway, 4o Image, Flux Kontext, and 100+ marketplace models, all in one searchable docs site with AI chat.

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Browse the Marketplace

🎵

Suno API

Music generation, lyrics, extensions, vocal separation, audio uploads, covers, stems, and MIDI conversion. 47 endpoints with full callback contracts.

Open Suno API

🎬

Veo3 API

Google Veo 3 video generation. 1080p and 4K output with callback flows, extension, and detail retrieval.

Open Veo3 API

🎥

Runway API

AI video generation, Aleph workflows, video extension, and task management with full callback contracts.

Open Runway API

🖼️

4o Image API

GPT-4o powered image generation, editing, variants, and task tracking.

Open 4o Image API

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Flux Kontext API

High quality image generation and editing via Flux Kontext endpoints with task callbacks.

Open Flux Kontext API

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File Upload API

Three upload modes for binary assets - base64 inline, multipart stream, and URL passthrough.

Open Upload API

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Common API

Account credits, download URL helpers, and webhook signature verification.

Open Common API

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Model Marketplace

Wan, Kling, Sora 2, Hailuo, ByteDance, Google, Claude, Gemini, ElevenLabs, Topaz, Recraft, Ideogram, Grok Imagine, and more. 124 model endpoints across 25 vendors.

Browse Marketplace

What this site is

A self-contained reference for the KIE.AI API platform: the model marketplace (Wan, Kling, Sora 2, Veo 3, Suno, Runway, ElevenLabs, Topaz, ByteDance, Google, and dozens more) plus all the platform APIs (file upload, common helpers, image generation, and music generation).

Every endpoint is documented with its request shape, parameters, callbacks, and typical usage. The chat widget in the bottom right runs Retrieval-Augmented Generation against the full corpus, so ask it anything about request bodies, callback payloads, pricing notes, or model selection.

How content is organized

Top-level APIs - Suno, Veo3, Runway, 4o Image, Flux Kontext, File Upload, Common - get their own section with a quickstart and one page per endpoint.
Marketplace models are grouped by vendor under /market/. Each model has its own endpoint page with request shape, parameters, and typical use cases.
Callbacks for asynchronous endpoints live alongside their generation endpoints and are linked from each request page.

Quick reference

Auth: every request uses Authorization: Bearer YOUR_API_KEY
Base URL: https://api.kie.ai
Pricing notes: see the source pricing page; this docs site does not republish pricing tables
Callbacks: most async endpoints accept a callBackUrl and POST results back; signature verification helpers are in Common API