# UseAPI.net — third-party API for popular AI services

<small>Index generated: 2026-06-06 07:28 UTC</small>

> UseAPI.net provides API access to leading AI models for video creation, image generation, music composition, speech synthesis, face swapping, and more — all through a single $15/month subscription. Each API connects your existing AI website account(s) to a fully-featured REST API at website subscription prices, significantly cheaper than official API rates. Multi-account configuration with automated load balancing is included. An active subscription to the underlying service (e.g. Midjourney, Runway, Kling) is required.

## Start here

- [Model Matrix](https://useapi.net/model-matrix): **Canonical list of every model across every API** (video, image, music, speech, face swap, upscale, extend, effects). The authoritative source for what models are available where, with notes on unlimited / free / Premium-only tiers. Always check this first to find which API exposes a given model.
- [Complete API spec](https://useapi.net/assets/aibot/all.txt): Single combined documentation file for all supported APIs (~4 MB). Feed this to your LLM for cross-service integrations. For smaller-context models, fetch only the per-service files listed below.
- [General Q&A](https://useapi.net/assets/aibot/qa.txt): Cross-cutting tips (rate limiting, prompt moderation, common patterns). **WARNING**: items are general-purpose and may reference deprecated APIs, sunsetted services, or scenarios not applicable to a specific API — always cross-check against the relevant service-specific documentation before applying.

## Universal conventions

**Authentication.** Every useapi.net request uses header `Authorization: Bearer <token>`. The token format is `user:<number>-<unique-string>` (e.g. `user:12345-abcdefghi`). **Use the complete string** — include the `user:` prefix and the alphanumeric suffix. Do not truncate to just the number. Do not URL-encode. A single token authorizes every API under the user's subscription.

**Cross-service shared models.** The same underlying model (Veo 3.1, Seedance 2.0, Nano Banana, etc.) is often exposed by multiple useapi.net APIs. Request and response shapes DIFFER between APIs even for the same model — each API exposes its own native interface. Veo 3.1 via Google Flow uses a different request body than Veo 3.1 via Runway. See the Model Matrix to find which API exposes a model, then consult THAT API's documentation for its specific format.

**Everything else is service-specific.** Identifier names (`jobid` / `taskId` / `musicId` / etc.), job lifecycle, response shapes, webhook payload shape, status code semantics, and synchronous-vs-asynchronous behavior vary per API. Use the per-service documentation below as the authoritative source for each API.

## Google Flow API v1

- [Google Flow API v1 documentation](https://useapi.net/assets/aibot/api-google-flow-v1.txt): Reverse-engineered API for Google's [Flow](https://labs.google/flow) (Veo + Gemini Omni Flash + Imagen). **Video**: Veo 3.1 Quality, Veo 3.1 Fast, Veo 3.1 Lite, Veo 3.1 Fast Relaxed (free on Ultra), Veo 3.1 Lite Lower Priority (free on Ultra), Gemini Omni Flash (Pro or Ultra — audio-native T2V/R2V at 4/6/8/10s + V2V edit on uploaded MP4 via `referenceVideo_1`, up to 7 image refs + 5 voice presets for spoken dialogue). **Images**: Imagen 4, Nano Banana / Gemini 2.5 Flash Image, Nano Banana 2 / Gemini 2.5 Pro Image, Nano Banana Pro / Gemini 3 Pro Image. Image generation works with free Google AI accounts. Includes captcha-solver pipeline and IPv6 rotation for resilience. See [Model Matrix](https://useapi.net/model-matrix) for current availability.

## Flow Music API v1

- [Flow Music API v1 documentation](https://useapi.net/assets/aibot/api-flowmusic-v1.txt): Reverse-engineered API for Google's [Flow Music](https://www.flowmusic.app), powered by the [Lyria 3 Pro](https://deepmind.google/models/lyria/) model. **Music**: generate complete songs from a text prompt (vocal or instrumental, optional custom lyrics + reference images/audio); edit clips via `cover` (restyle), `remix` (lyrics-adjust, deterministic UUID5 lyrics_id), `extend`, `replace`, and audio `effect` (Trim/Fade/Gain/Reverb/Pan/Equalizer); lyrics-only generation (free); AI image generation. Sync by default, opt-in `async` with `replyUrl` webhooks. Sign in with a Google account at flowmusic.app; song generation consumes account credits (see flowmusic.app pricing). Flow Music was formerly Producer AI (originally Riffusion). See [Model Matrix](https://useapi.net/model-matrix) for cross-API availability.

## Midjourney API v3

- [Midjourney API v3 documentation](https://useapi.net/assets/aibot/api-midjourney-v3.txt): Latest Midjourney API with full Midjourney functionality: imagine, blend, describe, button actions (upscale, variation, zoom, pan), seed retrieval, settings (fast/relax/turbo, remix, variability), and **video generation** (relax mode supported). Includes built-in CAPTCHA solver at no additional cost, SSE streaming for real-time progress events, replyUrl webhooks, and multi-account configuration with automated load balancing. See [Model Matrix](https://useapi.net/model-matrix).

## Midjourney API v2

- [Midjourney API v2 documentation](https://useapi.net/assets/aibot/api-v2.txt): Legacy Midjourney API (since early 2023). Supports imagine, blend, describe, button actions, seed retrieval, variations and remix modes, and the rest of the Discord bot surface. **Recommendation**: new integrations should use [Midjourney API v3](https://useapi.net/docs/api-midjourney-v3) instead. See [Model Matrix](https://useapi.net/model-matrix).

## Dreamina API v1

- [Dreamina API documentation](https://useapi.net/assets/aibot/api-dreamina-v1.txt): API for [Dreamina](https://dreamina.capcut.com) by ByteDance. **Video**: Seedance 2.0 (omni: image+video+audio, keyframe + multi-ref up to 14 assets), Seedance 2.0 Fast, Seedance 1.5 Pro, Seedance 1.0 Mini. **Images**: Seedream 5.0 Lite, Seedream 4.6, Seedream 4.5, Seedream 4.1, Seedream 4.0 (free and unlimited), Seedream 3.0, Nano Banana / Gemini 2.5 Flash (unlimited). See [Model Matrix](https://useapi.net/model-matrix) for cross-API availability.

## Kling AI API v1

- [Kling AI API documentation](https://useapi.net/assets/aibot/api-kling-v1.txt): API for [Kling AI](https://app.klingai.com) by Kuaishou Technology, widely considered a top-tier video model for prompt adherence and consistency. **Video models**: Kling v3 / O3 (4K, audio, elements, motion control, omni), Kling O1 (elements), Kling 2.6 (native audio + motion control), Kling 2.5, 2.1, 1.6, 1.5. **Audio + lip-sync**: Avatars 2.0 (lip-sync video with TTS), Kling Audio (video audio generation), Motion Control (apply motion from video to image, v3.0 / v2.6). **Other**: Elements (reusable character/object references), Custom Voices (clone from MP4 video). See [Model Matrix](https://useapi.net/model-matrix).

## MiniMax / Hailuo AI API v1

- [MiniMax API documentation](https://useapi.net/assets/aibot/api-minimax-v1.txt): API for [MiniMax AI](https://www.minimax.io) via [Hailuo AI](https://hailuoai.video). **Video**: Hailuo 01 (unlimited on Ultra/Max), Hailuo 02 / 2.3 (unlimited on Max), Veo 3.1, Sora 2. **Images**: Midjourney V7, Midjourney NiJi 7, Nano Banana / Nano Banana 2 / Nano Banana Pro, GPT Image 1.5 / 2.0 (1K/2K/4K, up to 16 refs), Seedream 4.5 / 5.0, image-01. **Speech**: Speech 2.5 TTS with voice cloning. **Music**: Music 2.0. Multi-account load balancing included. See [Model Matrix](https://useapi.net/model-matrix).

## Runway API v1

- [Runway API documentation](https://useapi.net/assets/aibot/api-runwayml-v1.txt): API for [Runway AI](https://runwayml.com). **Native video**: Gen-4.5, Gen-4, Gen-4 Turbo, Gen-4 Aleph (video-to-video). **Third-party video** (via Runway): Kling v3 / 2.6, Veo 3.1, Sora 2 / Sora Pro, Wan 2.6 Flash / 2.2 Animate, HappyHorse 1.0, Seedance 2.0. **Images**: FLUX.2 Max (up to 4K, 8 refs) / FLUX.2 Klein (up to 2K, 4 refs), Nano Banana / Nano Banana 2 / Nano Banana Pro, GPT Image 1 Mini / 1.5 / 2.0 (up to 4K, 14 refs), Seedream 5.0, Gen-4 / Gen-4 Turbo. **Other**: Act Two (character animation), Lip Sync, Frames, Image Upscale (free and unlimited), Video Upscale (Topaz AI 4K, any source video, up to 40s), Video Extend, Kling Motion Control. **Runway Unlimited plan** unlocks credit-free `exploreMode` on all image and most video models. See [Model Matrix](https://useapi.net/model-matrix).

## PixVerse API v2

- [PixVerse API v2 documentation](https://useapi.net/assets/aibot/api-pixverse-v2.txt): API for [PixVerse.ai](https://pixverse.ai). **Native video**: PixVerse v6, v5.6, v5.5, v5, v5-fast, PixVerse C1. **Third-party video** (via PixVerse): Seedance 2.0 / 2.0 Fast, Kling O3 / V3, Veo 3.1 Lite / Standard / Fast, Sora 2 / Sora 2 Pro, Grok Imagine, HappyHorse 1.0. **Images**: Qwen Image, Nano Banana / Nano Banana 2 / Nano Banana Pro, GPT Image 2.0 (up to 4K, 9 refs), Seedream 5.0 Lite, Seedream 4.5 / 4.0, Kling O3 / 3.0. **Other**: Extend, Upscale, Lip Sync, Modify, 150+ video effects. Pro+ plans include unlimited image generation in Relax Mode. See [Model Matrix](https://useapi.net/model-matrix).

## Mureka API v1

- [Mureka API documentation](https://useapi.net/assets/aibot/api-mureka-v1.txt): API for [Mureka AI](https://www.mureka.ai) by Kunlun Tech, positioned to compete with Suno and Udio. **Music**: SkyMusic 2.0 (V8 default, O2, V7.6, V7.5) — generate songs from lyrics/descriptions/musical styles, with vocal references, motif (melody) seeding, custom vocal cloning, regenerate, extend, MIDI export. **Speech**: voice cloning with multi-speaker conversations. See [Model Matrix](https://useapi.net/model-matrix).

## TemPolor API v1

- [TemPolor API documentation](https://useapi.net/assets/aibot/api-tempolor-v1.txt): API for [TemPolor](https://www.tempolor.com), a royalty-free music generation service. Creates soundtracks from text prompts, custom lyrics, or MIDI. Supports voice cloning, extensive customization (chords, BPM), and export in mp3, wav, and stems. Up to 10 concurrent generations. **Ultra plan** includes unlimited song generation. See [Model Matrix](https://useapi.net/model-matrix).

## InsightFaceSwap API v1

- [InsightFaceSwap API documentation](https://useapi.net/assets/aibot/api-faceswap-v1.txt): API for the [InsightFaceSwap](https://discord.gg/Ym3X8U59ZN) Discord Bot by [Picsi.Ai](https://www.picsi.ai). Face swap from source images onto target images. Features: HiFidelity Mode, ARTIFY effects, age transformation, multi-face morphing, background change, headshot generation. Free and paid Picsi.Ai tiers supported. See [Model Matrix](https://useapi.net/model-matrix).