| name | seisoai |
| description | AI image, video, music, audio, 3D, and LLM inference with x402 pay-per-request. Generate images with FLUX/FLUX-2, videos with Veo 3.1/LTX-2, music with CassetteAI, voice clone, lip sync, transcription, and Claude LLM inference. Create custom AI agents. Use when the user wants AI generation, creative content, chat completions, or agentic workflows. |
| metadata | {"openclaw":{"homepage":"https://seisoai.com","emoji":"🎨"}} |
Seisoai
Generate AI images, videos, music, audio, 3D models, and run LLM inference. Pay per request with USDC on Base — no account needed.
Base URL: https://seisoai.com
Quick Start (Recommended for Agents)
The fastest way to use Seisoai is through the Gateway API. One endpoint for everything.
1. Discover Available Tools
GET /api/gateway/tools
Returns all tools with pricing and input schemas.
2. Invoke Any Tool
POST /api/gateway/invoke/{toolId}
Content-Type: application/json
{
"prompt": "a sunset over mountains",
...tool-specific params
}
3. Handle x402 Payment
First request returns HTTP 402. Decode PAYMENT-REQUIRED header, sign payment, retry with PAYMENT-SIGNATURE header.
Common Tool IDs
| Task | Tool ID | Price |
|---|
| Image (fast) | image.generate.flux-pro-kontext | $0.065 |
| Image (photorealistic) | image.generate.flux-2 | $0.0325 |
| Image (premium) | image.generate.nano-banana-pro | $0.325 |
| Video (quality) | video.generate.veo3 | $0.13/sec |
| Video (fast) | video.generate.ltx-text | $0.052/sec |
| Music | music.generate | $0.026/min |
| Voice clone | audio.tts | $0.026 |
| Transcribe | audio.transcribe | $0.013 |
| Image to 3D | 3d.image-to-3d | $0.195 |
When to Use Which Tool
User wants an image?
├─ Photorealistic / text in image → flux-2
├─ Fast general purpose → flux-pro-kontext
├─ 360° panorama → nano-banana-pro
└─ Edit existing image → flux-pro-kontext-edit
User wants a video?
├─ High quality / complex scene → veo3
├─ Fast / simple scene → ltx-text
├─ Animate an image → veo3-image-to-video or ltx-image
└─ First + last frame → veo3-first-last-frame
User wants audio?
├─ Music from description → music.generate
├─ Sound effect → audio.sfx
├─ Clone voice / TTS → audio.tts
├─ Transcribe speech → audio.transcribe
└─ Separate stems → audio.stem-separation
User wants to edit an image?
├─ Swap faces → image.face-swap
├─ Fill in area → image.inpaint
├─ Extend image → image.outpaint
├─ Remove background → image.extract-layer
└─ Upscale → image.upscale
User wants 3D?
└─ Image to GLB model → 3d.image-to-3d
User wants multi-step workflow?
└─ Use /api/gateway/orchestrate with goal description
x402 Payment Flow
All endpoints support x402 pay-per-request. No account needed.
1. POST /api/gateway/invoke/image.generate.flux-2
→ 402 Payment Required + PAYMENT-REQUIRED header
2. Decode header (base64 JSON):
{
"accepts": [{
"scheme": "exact",
"network": "eip155:8453",
"maxAmountRequired": "32500",
"asset": "USDC",
"payTo": "0x..."
}]
}
3. Sign USDC payment with wallet
4. Retry with header:
PAYMENT-SIGNATURE: <signed payload>
5. Success response includes:
{ "x402": { "settled": true, "transactionHash": "0x..." } }
User Confirmation Required
Before signing any payment, agents MUST:
- Show amount (e.g., "$0.065 USDC")
- Show what's being purchased
- Get explicit user approval
Agent: Generate image of sunset? Cost: $0.065 USDC on Base. [Confirm/Cancel]
User: Confirm
Agent: [signs, generates, returns image]
Core Endpoints
Image Generation
POST /api/generate/image
{
"prompt": "a sunset over mountains, oil painting style",
"model": "flux-pro",
"aspect_ratio": "16:9",
"num_images": 1
}
| Param | Type | Default | Description |
|---|
prompt | string | required | Image description |
model | string | flux-pro | flux-pro, flux-2, nano-banana-pro |
aspect_ratio | string | 1:1 | 1:1, 16:9, 9:16, 4:3, 3:4 |
num_images | int | 1 | 1-4 |
image_url | string | - | Reference image for editing |
seed | int | - | Reproducibility seed |
Response:
{
"success": true,
"images": ["https://fal.media/files/..."],
"x402": { "settled": true, "transactionHash": "0x..." }
}
Video Generation
POST /api/generate/video
{
"prompt": "a cat walking through a garden",
"model": "veo",
"duration": "6s",
"generate_audio": true
}
| Param | Type | Default | Description |
|---|
prompt | string | required | Video description |
model | string | veo | veo (quality) or ltx (fast) |
duration | string | 6s | 4s, 6s, 8s for Veo; 1-10s for LTX |
generate_audio | bool | true | Generate synchronized audio |
first_frame_url | string | - | Starting frame image |
last_frame_url | string | - | Ending frame image |
Response:
{
"success": true,
"video": { "url": "https://fal.media/files/...", "content_type": "video/mp4" },
"x402": { "settled": true, "transactionHash": "0x..." }
}
Music Generation
POST /api/generate/music
{
"prompt": "upbeat jazz with piano and drums, 120 BPM",
"duration": 60,
"selectedGenre": "jazz"
}
| Param | Type | Default | Description |
|---|
prompt | string | required | Music description (include genre, instruments, mood, tempo) |
duration | int | 60 | Duration in seconds (10-180) |
selectedGenre | string | - | lo-fi, electronic, orchestral, rock, jazz |
Voice Clone / TTS
POST /api/audio/voice-clone
{
"text": "Hello, this is a test of voice cloning.",
"voice_url": "https://example.com/reference-voice.wav",
"language": "en"
}
Speech-to-Text
POST /api/audio/transcribe
{
"audio_url": "https://example.com/speech.mp3",
"task": "transcribe"
}
| Param | Type | Default | Description |
|---|
audio_url | string | required | Audio/video URL |
task | string | transcribe | transcribe or translate (to English) |
chunk_level | string | segment | segment or word for timestamps |
Sound Effects
POST /api/audio/sfx
{
"prompt": "thunder rumbling in the distance",
"duration": 5
}
Image to 3D
POST /api/model3d/generate
{
"image_url": "https://example.com/object.jpg",
"generate_type": "Normal"
}
| Type | Price | Output |
|---|
Normal | $0.195 | Full textured GLB |
Geometry | $0.13 | Geometry only |
LowPoly | $0.104 | Low-poly mesh |
Image Tools
Face Swap
POST /api/image-tools/face-swap
{ "source_image_url": "...", "target_image_url": "..." }
Price: $0.026
Inpainting
POST /api/image-tools/inpaint
{ "image_url": "...", "mask_url": "...", "prompt": "a red sports car" }
Price: $0.026
Outpainting
POST /api/image-tools/outpaint
{ "image_url": "...", "prompt": "extend the landscape", "direction": "all" }
Price: $0.026
Background Removal
POST /api/extract/layers
{ "image_url": "..." }
Price: $0.039
Upscale
POST /api/generate/upscale
{ "image_url": "..." }
Price: $0.039
Describe Image
POST /api/image-tools/describe
{ "image_url": "...", "detail_level": "detailed" }
Price: $0.013
Multi-Step Orchestration
Let Seisoai plan and execute complex workflows automatically.
POST /api/gateway/orchestrate
{
"goal": "Create a music video: generate an image of a sunset, animate it to video, add jazz music",
"planOnly": false
}
The orchestrator will:
- Generate the sunset image
- Convert to video with Veo
- Generate jazz music
- Combine audio + video
Response includes step-by-step results with all generated assets.
Pre-built Workflows
| Workflow | Endpoint | Description | Est. Cost |
|---|
| AI Influencer | POST /api/workflows/ai-influencer | Portrait → Voice → Lip Sync | ~$0.15 |
