AI API

Kie.ai

Kie.ai is a unified AI API platform for accessing video, image, audio, and LLM models through one integration with transparent pricing.

What is Kie.ai?

Kie.ai is a unified AI API marketplace and infrastructure platform that gives developers access to video, image, audio, and language models through one consistent interface. It emphasizes lower-cost access, async task handling, webhooks, polling, and production-focused reliability.

Kie.ai vs Similar AI Tools

Pricing ModelPaidCustom PricingFreeFree
Free Credits
Key Features
  • Unified API for video, image, audio, and LLM models
  • Transparent wallet-based pricing
  • Async request handling with webhook and polling support
  • Enterprise-Grade Runtime with high availability
  • Flexible Identity & Access (SAML, OAuth)
  • Tenant Isolation with isolated runtimes, credentials, and audit trails
  • Emulates Ollama, OpenAI, and llama.cpp APIs
  • Transparent forwarding to NVIDIA's OpenAI-compatible API
  • Optional response caching with configurable TTL and size
  • Transparent credential injection for AI agents
  • AES-256-GCM encrypted secret storage at rest
  • Host and path matching for routing secrets to endpoints
Pros
  • One API for multiple AI model categories
  • Transparent pricing with no hidden fees
  • Enterprise-grade security and governance built-in
  • Multi-tenant isolation for SaaS providers
  • Lightweight and easy to deploy via Docker
  • Caches responses to reduce API calls and latency
  • Open-source and self-hosted, giving full control over credentials
  • Easy setup with one-line install or Docker
Cons
  • Model availability and pricing may change by provider
  • Some listings repeat across the page, which can be confusing
  • Pricing is not transparent and requires contacting sales
  • Requires technical expertise to set up and configure workflows
  • Only forwards to NVIDIA's API; no other cloud provider support
  • Requires a valid NVIDIA API key
  • Currently limited to single-user local mode by default; OAuth setup requires additional config
  • Requires self-hosting infrastructure (Docker/PostgreSQL)
Best For
  • Developers building AI-native applications
  • Teams needing one API for multiple model types
  • Enterprises needing a secure, governable integration platform
  • SaaS companies requiring multi-tenant integration for customers
  • Developers integrating NVIDIA LLMs into existing workflows
  • Users of Open WebUI, curl, or SDKs wanting to leverage NVIDIA models
  • Developers building AI agents that need secure API access
  • Teams managing multiple AI agent deployments with varying credential scopes

How to use Kie.ai?

  1. 1Choose a model from the marketplace or pricing page.
  2. 2Create an API key and review the documentation.
  3. 3Send an async generation request with the unified schema.
  4. 4Use webhook callbacks or polling to track task status.
  5. 5Retrieve outputs from logs or the returned task result.

Kie.ai Key Features

  • Unified API for video, image, audio, and LLM models
  • Transparent wallet-based pricing
  • Async request handling with webhook and polling support
  • Model marketplace with multiple leading providers
  • Playground for testing before production integration
  • Failed generations are not charged
  • 24/7 monitoring and support
  • Public pricing and billing details

Kie.ai Use Cases

  • Integrating multiple AI models into one product
  • Building video generation workflows
  • Generating and editing images at scale
  • Creating music, speech, or voice content
  • Adding LLM capabilities for agents and chat features
  • Testing and comparing models before deployment
  • Reducing AI API costs for production apps

Kie.ai Pricing & Free Credits

Kie.ai currently operates on a Paid model.

Free TierFree Credits

Google Nano Banana 2 4K Image

$0.09 per image

Image generation pricing listed at a lower rate than the official API.

Seedance 2.0 480p With Video Input

$0.057 per sec

Video generation pricing for a lower-resolution workflow with video input.

Suno v5.5

$0.002 per req

Music generation pricing for requests using the V5.5 model.

Eleven labs

$0.07 per 1K

Voice or audio pricing shown in the marketplace listing.

Paid Plans

Google Veo 3.1 Text-to-Video Quality 1080p

$1.28 per video

Text-to-video pricing for 1080p generation.

Claude Opus 4.7 Input

$1.425 per 1M tokens

LLM input pricing for Claude Opus 4.7.

Google Nano Banana 2 4K Image

$0.09 per image

Image generation pricing listed at a lower rate than the official API.

Seedance 2.0 480p With Video Input

$0.057 per sec

Video generation pricing for a lower-resolution workflow with video input.

Google Veo 3.1 Text-to-Video Quality 1080p

$1.28 per video

Text-to-video pricing for 1080p generation.

Claude Opus 4.7 Input

$1.425 per 1M tokens

LLM input pricing for Claude Opus 4.7.

Suno v5.5

$0.002 per req

Music generation pricing for requests using the V5.5 model.

Eleven labs

$0.07 per 1K

Voice or audio pricing shown in the marketplace listing.

Kie.ai Pros & Cons

Pros

  • One API for multiple AI model categories
  • Transparent pricing with no hidden fees
  • Failed tasks are not charged
  • Supports async workflows, webhooks, and polling
  • Playground helps test models before production
  • Public documentation and billing information

Cons

  • Model availability and pricing may change by provider
  • Some listings repeat across the page, which can be confusing
  • Not a standalone model builder; it is an access layer

What is Kie.ai best for?

  • Developers building AI-native applications
  • Teams needing one API for multiple model types
  • Products that require lower-cost model access
  • Production workflows that need async task tracking
  • Users comparing models before integration

Kie.ai FAQ

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