How to use Kling 4.0 in Claude
Claude cannot output Kling videos on any plan. Add Flow AI Fx as a custom connector, sign in, then ask for Kling 4.0 with length, resolution, and references.
Claude does not generate Kling 4.0 clips until you add Flow AI Fx. The MCP URL is https://flowaifx.app/mcp. Kling 4.0 (model id kling-v4) renders 3–30 second shots at 720p or 1080p with image and video references. A 5-second 720p job costs 400 credits.
MCP URL and install command
Paste the URL into Claude connectors or ChatGPT custom MCP. For Claude Code, Codex, and OpenClaw, run the command then sign in.
MCP URL
https://flowaifx.app/mcpAdd Flow AI Fx
One Streamable HTTP URL. Sign in with Google or email. No fal, Kling, or Google AI Studio keys.
1. Open Claude connectors
Open https://claude.ai/customize/connectors and choose Add custom connector. Name Flow AI Fx. URL https://flowaifx.app/mcp.
2. Sign in
Click Connect and sign in with Google or email. Works on Claude web, Desktop, and mobile.
3. Name the model
Ask Claude to use the named model. In Claude Code, run claude mcp add --transport http flow-ai-fx https://flowaifx.app/mcp then /mcp.
4. Generate
Claude calls generate_video and polls check_job. Preview the CDN link in the conversation.
Generate with Kling 4.0
Connect the MCP, name the model, then poll check_job for the CDN link.
- 1
Open Claude connectors
Open https://claude.ai/customize/connectors and add a custom connector. Name it Flow AI Fx. URL https://flowaifx.app/mcp.
- 2
Sign in
Click Connect and sign in with Google or email. The connector works on Claude web, Desktop, and mobile.
- 3
Ask for Kling 4.0
Ask Claude to generate Kling 4.0. Include duration (3–30s), 720p or 1080p, aspect ratio, and any image or video references.
- 4
Approve generation
Claude calls generate_video with kling-v4 and polls check_job. Preview the R2 CDN link in chat. A 5s 720p clip costs 400 credits.
Kling 4.0 on Flow AI Fx
Numbers match the live credit table. Failed server-error generations are refunded.
- Model id
- kling-v4
- MCP tool
- generate_video
- Duration
- 3–30s
- Resolution
- 720p, 1080p
- Example cost
- 5s 720p: 400 credits
Questions
Setup, credits, and model ids for this agent combo.
More agent setups
Same model on another client, or another model on this client.
Generate Kling 4.0 from your agent
Connect https://flowaifx.app/mcp, sign in with Google or email, and call generate_video. ChatGPT, Claude, and Gemini signups start with 50 free credits. Other new accounts start with 10. When credits run out, MCP returns topup_url https://flowaifx.app/pricing?billing=payonce.