Video · Runway

Runway API

Runway API access for video generation and editing — create and transform footage with text prompts.

Operational · 2 endpoints · from $0.120

runapi.ai

curl -X POST https://runapi.ai/api/v1/runway/extend_video \
  -H "Authorization: Bearer $RUNAPI_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "runway",
  "task_id": "task_abc123"
}'

import { RunwayClient } from "@runapi.ai/runway";

const client = new RunwayClient();
const result = await client.extendVideo.run({
    model: "runway",
    task_id: "task_abc123",
});

<?php

require __DIR__ . "/vendor/autoload.php";

use RunApi\Runway\RunwayClient;

$client = new RunwayClient();
$result = $client->extendVideo->run([
        'model' => 'runway',
        'task_id' => 'task_abc123',
]);

require "runapi/runway"

client = RunApi::Runway::Client.new
result = client.extend_video.run(
    model: "runway",
    task_id: "task_abc123"
)

npx skills add runapi-ai/runway -g

# Claude Code
claude mcp add runapi -s user -- npx -y @runapi.ai/mcp

# Codex
codex plugin install runapi-mcp@agents

# Cursor / Windsurf / VS Code
npx @runapi.ai/mcp init cursor

@runapi.ai/runway v1

OVERVIEW

Runway is a professional-grade AI video generation platform supporting text-to-video and image-to-video creation. It is widely used in creative and film production workflows for generating cinematic footage.

Multiple variants for different speed, quality, and cost tiers
Model skill includes docs, schemas, pricing, and setup notes
Works with Claude Code, Codex, Gemini CLI, Cursor, and VS Code
Single API key and unified billing across all variants
Async task management with polling and webhook callbacks
Failed generations are not charged

PRICING

Pricing

Failed generations are not charged

Text to video

$0.12-$0.30 / video

Duration seconds: 5 · Output resolution: 720p $0.12

Duration seconds: 5 · Output resolution: 1080p $0.30

Duration seconds: 10 · Output resolution: 720p $0.30

Extend video

$0.12-$0.30 / video

Output resolution: 720p $0.12

Output resolution: 1080p $0.30

SPEC SHEET

Technical details

Model ID	runway
Provider	Runway
Modality	video
Task type	asynchronous
Billing unit	call
API endpoint	/api/v1/runway/extend_video
Commercial license	Yes — included via API
Status	Operational

SKILLS

Install the Runway skill for app development

Load the model docs, schemas, pricing notes, and setup steps into your coding workspace.

# Install the model skill for app development workflows
npx skills add runapi-ai/runway -g

Installs docs, schemas, pricing context, and setup notes into your developer workspace.

Or use this setup request in your coding tool:

Install the Runway skill for this app:

1. Add runapi-ai/runway with the skills installer.
2. Load SKILL.md in this workspace.
3. Use its docs, schemas, pricing notes, and setup steps when adding model features.
4. Confirm the install path when done.

OpenClaw

Use Runway in OpenClaw

Prompt, curl command, parameters, and FAQ.

Hermes Agent

Use Runway in Hermes Agent

Custom provider setup, API call, and FAQ.

HOW IT WORKS

From model skill to first result in four steps

Choose a model

Browse the model catalog and pick the model and variant that match your output type, quality bar, and latency target. Each variant page shows its model ID, pricing, and parameter constraints so you can compare before committing.

Configure

Set your RunAPI API key as an environment variable and install the model skill in your coding workspace. The skill loads docs, typed schemas, pricing notes, and setup steps so your agent has the right context from the start.

Call

Use the skill instructions to add the model feature inside your application. Send a POST request with your prompt, model ID, and parameters. RunAPI routes the request, manages the async lifecycle, and returns structured JSON.

Receive

Poll by task ID for completion, stream results end-to-end when supported, or configure a webhook callback URL to receive results automatically. The CLI provides a built-in wait command, and the SDKs offer both polling and callback patterns.

CONTEXT

What is the Runway API?

Runway is a leading video AI company whose models are widely used in creative production. Through RunAPI, Runway endpoints are accessible with a single key and pay-per-call pricing.

Provider

Runway

Modality

Video

WHY RUNAPI

Why route the Runway API through RunAPI

One auth, every provider

A single RunAPI API key unlocks the whole model catalog across all providers. No separate accounts to create, no API keys to rotate per integration, and no credential management overhead. Add a new model to your app by changing one parameter.

Unified pricing & billing

Per-call pricing in USD, billed monthly into a single invoice. No subscription tiers, no minimum spend, and failed generations are never charged. The pricing page and check_pricing API show exact costs before you commit to a model.

Schema-first SDK

Typed schemas, parameter constraints, and setup notes are packaged in the model skill so your implementation starts from the right contract. The skill loads into Claude Code, Codex, Gemini CLI, Cursor, and VS Code — your agent knows the correct request shape before you write a line of code.

FAQ