Multi Shot Video Stitching API

Search for a multi shot video stitching API and most results answer half the problem. They merge clips you already have: you hand over finished files, describe the order in JSON, and get one video back. That is genuine work, but it assumes the shots exist. The moment those shots are AI generated, you are back to running one model per shot by hand, downloading files, and only then calling a separate merge endpoint.

The workflow above closes that gap. A single Text Input holds the brief for three shots. Its output fans out to three video nodes, one per shot, and a shared AI video generator reference frame keeps the product consistent. Every shot lands in a Compose Video node that stitches them into one clip in order. Generation and assembly are one graph, and publishing it turns the whole pipeline into the endpoint your code calls.

Open the flow and the whole pipeline is visible as one graph.

• Shot Prompts holds the brief. A Text Input node with one description covering all three shots. This is the only part a person has to write.
• Storyboard Frame renders the anchor. Nano Banana Lite generates one reference frame and its output wires into Shot 1 as the start frame, so the same product carries across the sequence.
• Three shot nodes generate in parallel. Veo 3.1, Seedance 2.0, and Pixverse v6 each take the prompt and produce one shot. Different models let each shot play to a model's strength.
• Compose Video stitches. The three shot outputs wire into a Compose Video node that assembles them into one clip, in order, as the final step.

Because the assembly is a node and not a separate service, the order, the models, and the reference frame are all versioned with the workflow. Improve the brief once and every future run inherits it, the same reproducibility that separates a no-code workflow with API access from stringing calls together by hand. The honest tradeoff: video generation is the slow, paid step, so a three-shot run takes minutes and spends credits per shot.

If you already own the final clips and only need them merged, a dedicated assembly tool is the simpler tool, and Wireflow will not pretend otherwise. It is also not a frame-accurate timeline editor: Compose Video stitches shots in order, but there is no scrubbable multitrack surface, no keyframe trimming, and no hand-drawn transition curves. If your job is precise cut-by-cut editing of footage you shot yourself, a real editor beats this pipeline.

Wireflow earns its place when the shots have to be generated too. When one prompt should become a sequence, when each shot wants a different model, or when the whole generate-and-stitch loop needs to run from code as one call, a canvas that does both halves is the shorter path. Compare it against the field first: the best video generation API tools roundup shows where a generate-plus-stitch graph wins and where it does not. Runs are metered too, so an unattended agent generating shot sequences is a spend decision to cap deliberately.