> Markdown copy of https://makernice.com/blog/how-to-use-kling-4-0-in-claude-code-and-cursor/ for AI tools. The HTML page is the canonical version. [← All posts](https://makernice.com/blog/) Guides # How to Use Kling 4.0 in Claude Code and Cursor? Makernice Team · 2026-11-11 · Updated 2026-11-12 Prices as of November 12, 2026 (price list v15). ## Key takeaways - Kling 4.0 runs in Cursor and Claude Code through the Makernice MCP server, which gives the agent estimate\_cost, generate and check\_job. - Kling 4.0 offers text-to-video, image-to-video, first and last frame, and reference-to-video with up to 10 reference images, at 720p or 1080p. - A Kling 4.0 clip can run from 3 to 30 seconds and is billed per output second; every clip carries an audio track. - Input images for Kling 4.0 must be public https links to JPEG or PNG files; a local path from your project won't work over MCP. Ask an AI assistant about this page[Ask ChatGPT](https://chatgpt.com/?q=Read+https%3A%2F%2Fmakernice.com%2Fblog%2Fhow-to-use-kling-4-0-in-claude-code-and-cursor%2F+and+summarize+what+it+says+about+How+to+Use+Kling+4.0+in+Claude+Code+and+Cursor%3F.+Quote+the+page+for+prices+and+limits.)[Ask Claude](https://claude.ai/new?q=Read+https%3A%2F%2Fmakernice.com%2Fblog%2Fhow-to-use-kling-4-0-in-claude-code-and-cursor%2F+and+summarize+what+it+says+about+How+to+Use+Kling+4.0+in+Claude+Code+and+Cursor%3F.+Quote+the+page+for+prices+and+limits.)[Ask Perplexity](https://www.perplexity.ai/search?q=Read+https%3A%2F%2Fmakernice.com%2Fblog%2Fhow-to-use-kling-4-0-in-claude-code-and-cursor%2F+and+summarize+what+it+says+about+How+to+Use+Kling+4.0+in+Claude+Code+and+Cursor%3F.+Quote+the+page+for+prices+and+limits.) Kling 4.0, Kuaishou's video model, works from Cursor and Claude Code through the Makernice MCP server. Your agent writes the request, quotes it with `estimate_cost` and starts it with `generate` only after you approve the amount. The default clip, 5 seconds at 720p, is $0.84 at price list v15 (November 12, 2026). ## How do I connect Kling 4.0 to Cursor and Claude Code? Kling 4.0 needs the Makernice MCP server added once in each editor, with a browser sign-in instead of an API key. For Cursor, the [Cursor setup page](https://makernice.com/mcp/connect/cursor/) offers a one-click install and the matching block for `~/.cursor/mcp.json`. Once the entry is in place, open Cursor's MCP settings and use the sign-in next to makernice; a browser tab asks you to approve the connection. For Claude Code, the [Claude Code setup page](https://makernice.com/mcp/connect/claude-code/) gives the `claude mcp add --transport http --scope user makernice` command complete with the server address. Run it, launch Claude Code, type `/mcp` and pick makernice to sign in. Each connection gets its own spending rules: a per-job cap and, if you set one, a daily cap. Asking the agent for `get_balance` shows both, plus your balance and today's spend. ## How do I generate Kling 4.0 videos inside Claude or ChatGPT? Kling 4.0 videos are made inside Claude or ChatGPT by adding Makernice as a connector, then asking for the clip in a normal chat. The tool calls match the editor flow: an `estimate_cost` quote that informs you but locks nothing, a `generate` call capped by `max_cost_usd`, then `check_job` until the clip is ready. - In Claude, open Customize, then Connectors, and choose Add custom connector; paste the MCP URL and connect with your Makernice login. Team and Enterprise workspaces need an owner to add it first. Full steps: [Claude connect page](https://makernice.com/mcp/connect/claude/). - In ChatGPT on the web, open Plugins and add a custom MCP server with OAuth, pasting the ChatGPT-specific address; your plan or workspace must allow this. Mention Makernice with @ in a new chat to use it. Full steps: [ChatGPT connect page](https://makernice.com/mcp/connect/chatgpt/). ## How do I use up to 10 reference images with Kling 4.0? Kling 4.0 uses reference images in reference-to-video mode: the agent sets `mode` r2v, puts 1 to 10 public https links in `reference_images`, describes the new scene in the prompt and picks an `aspect_ratio` from 16:9, 9:16, 1:1, 21:9. Makernice API requests take reference images only; reference videos and Motion Control are not supported. The exchange below keeps one teapot consistent from three catalog photos. **You:** Here are three catalog photos of our teapot and cup (links below). Make a 5-second square clip of tea being poured on a sunny counter, same teapot. Price it first. **Cursor** turns that into a reference-to-video request and asks for a quote: ``` { "name": "estimate_cost", "arguments": { "input": { "model": "kling-4.0", "mode": "r2v", "prompt": "The ceramic teapot from the references sits on a sunlit kitchen counter; a hand pours tea into the matching cup, steam curling up, gentle orbit around the set", "reference_images": [ "https://example.com/catalog/teapot-front.jpg", "https://example.com/catalog/teapot-side.jpg", "https://example.com/catalog/teacup.jpg" ], "duration": 5, "resolution": "720p", "aspect_ratio": "1:1" } } } ``` **Cursor:** Kling 4.0 would charge $0.84 for this (720p, 5 seconds, 1:1, price list v15). The estimate doesn't hold the price or start anything. Want me to run it? **You:** Yes, run it. Cursor sends the identical input to `generate` with the approved amount as `max_cost_usd`: ``` { "name": "generate", "arguments": { "input": { "model": "kling-4.0", "mode": "r2v", "prompt": "The ceramic teapot from the references sits on a sunlit kitchen counter; a hand pours tea into the matching cup, steam curling up, gentle orbit around the set", "reference_images": [ "https://example.com/catalog/teapot-front.jpg", "https://example.com/catalog/teapot-side.jpg", "https://example.com/catalog/teacup.jpg" ], "duration": 5, "resolution": "720p", "aspect_ratio": "1:1" }, "max_cost_usd": "0.84", "request_id": "teapot-pour-square-r2v-01" } } ``` At that moment Makernice quotes the request again. If the new quote is within `max_cost_usd` and the connection's per-job cap, the job is created and charged exactly that quote; otherwise the call is refused and no job exists. The `request_id` makes retries safe: the same id with the same input returns the original job, while the same id with edited input is refused. Cursor then calls `check_job` with `wait_s` (up to 55 seconds per call) until `status` is succeeded. The MP4 sits at `outputs[0].url`, a signed link valid for 24 hours, and `console_url` opens the run in your Makernice console. Calling `check_job` again later gives a new link. An account [webhook](https://makernice.com/docs/#webhooks) also fires for MCP jobs if you want a push instead of polling. ## How do I turn an image into a Kling 4.0 video? Kling 4.0 turns an image into video with `mode` i2v and the picture in `image_url` as the first frame; adding `last_image_url` with `mode` flf makes the clip end on a second picture. Both modes take their shape from the frames, so the request has no `aspect_ratio`. The table maps each kind of request to its mode. | You want | Mode | Fields the agent fills | | --- | --- | --- | | A shot from a written description | t2v | `prompt`, `aspect_ratio` | | One still brought to life | i2v | `image_url` | | A move from one frame to another | flf | `image_url` and `last_image_url` | | The same product or character across shots | r2v | `reference_images` (1 to 10 links), `aspect_ratio` | Aspect ratio applies to text-to-video and reference-to-video, where Kling 4.0 accepts 16:9, 9:16, 1:1, 21:9. Image-to-video and first-and-last-frame clips take their shape from the frames you supply, so the agent leaves `aspect_ratio` out there. Each image must be a public https JPEG or PNG of up to 10 MB, at least 300 px on every side and with a width-to-height ratio between 0.4 and 2.5. More detail on each mode is on the [Kling 4.0 model page](https://makernice.com/models/kling-4-0/). ## How do I write a Kling 4.0 text-to-video request, and which settings matter? A Kling 4.0 text-to-video request needs `model`, `mode` t2v and a `prompt` of up to 4,000 characters; the settings that matter are `duration`, `resolution` and `aspect_ratio` (16:9, 9:16, 1:1, 21:9). Write one shot per prompt: the subject, one main action, the camera and the sound. The [Kling 4.0 prompt guide](https://makernice.com/blog/kling-4-0-prompt-guide/) has worked examples for each mode. Kling 4.0 takes any whole number of seconds from 3 to 30 (5 if you leave `duration` out) and either 720p or 1080p (720p by default). The per-second rate is $0.168 at 720p and $0.252 at 1080p, the same in every mode, so a clip's price is the rate times its length. Sound is always part of the output and there is no field to disable it. Before a long or 1080p clip, have the agent quote that exact request. Here it prices a 12-second first-and-last-frame transition at 1080p: ``` { "name": "estimate_cost", "arguments": { "input": { "model": "kling-4.0", "mode": "flf", "prompt": "The empty counter fills with the full tea set as morning light sweeps across", "image_url": "https://example.com/frames/counter-empty.png", "last_image_url": "https://example.com/frames/counter-set.png", "duration": 12, "resolution": "1080p" } } } ``` ## When Kling 4.0 requests come back refused A refused MCP call returns readable text, and no job or charge results. Column one is the refusal's internal name in Makernice's server; column two is the opening of the text the agent sees. | Refusal | What the tool returns | What to do | | --- | --- | --- | | `price_exceeds_max_cost` | "which exceeds max\_cost\_usd" | You approved one length or resolution and the agent sent another; re-estimate and approve again | | `invalid_request` | "Invalid parameters" | The text names the field, for example more than 10 reference images; fix it and quote again | | `request_id_conflict` | "This request\_id was already used with different parameters." | Give the edited request a new id; keep the old id only for retrying the unchanged one | | `concurrency_limit_reached` | "Too many jobs are running for this account right now." | Wait for a running clip to finish before starting the next | | `per_job_limit_exceeded` | "which exceeds this connection's per-job limit" | Drop to 720p or fewer seconds, or raise this connection's per-job limit | If the clip fails after it starts, for instance because moderation rejects an input image, `check_job` shows `status` failed and an `error` object, `billing` becomes released and the hold returns to your balance. The rules are on [failed generations](https://makernice.com/pricing/failed-generations/). ## Frequently asked questions #### How many reference images can Kling 4.0 take from Cursor? Up to 10 in reference-to-video mode, passed as public https links in reference\_images. Local files need to be uploaded somewhere public first. #### Does Kling 4.0 have Pro and Standard tiers like Kling 3.0? No. Kling 4.0 is a single model; you choose 720p or 1080p with the resolution field, and the per-second rate follows that choice. #### Can Claude Code make a 30-second Kling 4.0 clip in one job? Yes. Kling 4.0 accepts durations up to 30 seconds in a single request. It bills per output second, so ask for estimate\_cost on the full length before approving. #### Can I send WebP images to Kling 4.0? No. Kling 4.0 input images need to be JPEG or PNG, and each side must meet the minimum size listed above. ## Models in this post Video ### Kling 4.0 Kling 4.0 makes 3–30 second clips with sound from text, a first frame, first and last frames, or up to 10 reference images, at 720p or 1080p. By KuaishouFrom $0.168/s https://makernice.com/models/kling-4-0/