FFmpeg API Compose
Integrate
ffmpeg-api/compose
# Run the model; wait up to 20 s for the finished result in the same call
curl -X POST "https://api.doitong.com/v1/run/ffmpeg-api/compose?wait=20" \
-H "Authorization: Bearer $DOITONG_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"tracks": [
{
"id": "your-id",
"type": "example",
"keyframes": [
{
"timestamp": 1,
"duration": 1,
"url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg"
}
]
}
]
}'
# Still "queued" or "running"? Poll with the id from the response:
curl "https://api.doitong.com/v1/requests/REQUEST_ID?wait=20" \
-H "Authorization: Bearer $DOITONG_API_KEY"
const API = "https://api.doitong.com/v1";
const headers = {
"Authorization": "Bearer " + process.env.DOITONG_API_KEY,
"Content-Type": "application/json",
};
// Run the model; wait up to 20 s for the finished result in the same call
let res = await fetch(API + "/run/ffmpeg-api/compose?wait=20", {
method: "POST",
headers,
body: JSON.stringify({
"tracks": [
{
"id": "your-id",
"type": "example",
"keyframes": [
{
"timestamp": 1,
"duration": 1,
"url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg"
}
]
}
]
}),
});
let request = await res.json();
if (!res.ok) throw new Error(request.error.code + ": " + request.error.message);
// Not finished yet: long-poll until it is
while (request.status === "queued" || request.status === "running") {
res = await fetch(API + "/requests/" + request.id + "?wait=20", { headers });
request = await res.json();
}
if (request.status !== "succeeded") throw new Error(JSON.stringify(request.error));
console.log(request.outputs.map((o) => o.url), request.cost.credits + " API credits ($" + request.cost.usd + ")");
import os
import requests
API = "https://api.doitong.com/v1"
headers = {"Authorization": "Bearer " + os.environ["DOITONG_API_KEY"]}
payload = {
"tracks": [
{
"id": "your-id",
"type": "example",
"keyframes": [
{
"timestamp": 1,
"duration": 1,
"url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg",
},
],
},
],
}
# Run the model; wait up to 20 s for the finished result in the same call
r = requests.post(API + "/run/ffmpeg-api/compose", params={"wait": 20}, json=payload, headers=headers)
request = r.json()
if not r.ok:
raise RuntimeError(request["error"]["code"] + ": " + request["error"]["message"])
# Not finished yet: long-poll until it is
while request["status"] in ("queued", "running"):
request = requests.get(API + "/requests/" + request["id"], params={"wait": 20}, headers=headers).json()
if request["status"] != "succeeded":
raise RuntimeError(request["error"])
print([o["url"] for o in request["outputs"]], request["cost"]["credits"], "API credits", "$" + request["cost"]["usd"])
# 1. Connect once (Claude Code; Cursor, VS Code, Claude Desktop: https://doitong.com/en-GB/developers/docs/mcp)
claude mcp add --transport http doitong-models https://api.doitong.com/v1/mcp \
--header "Authorization: Bearer $DOITONG_API_KEY"
# 2. Your agent calls the "run" tool with:
{
"model_id": "ffmpeg-api/compose",
"input": {
"tracks": [
{
"id": "your-id",
"type": "example",
"keyframes": [
{
"timestamp": 1,
"duration": 1,
"url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg"
}
]
}
]
}
}
Call the FFmpeg API Compose model (ffmpeg-api/compose) through the Doitong API. Docs for agents: https://doitong.com/en-GB/developers/models/ffmpeg-api/compose.md
POST https://api.doitong.com/v1/run/ffmpeg-api/compose?wait=20
Authorization: Bearer $DOITONG_API_KEY
Content-Type: application/json
{
"tracks": [
{
"id": "your-id",
"type": "example",
"keyframes": [
{
"timestamp": 1,
"duration": 1,
"url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg"
}
]
}
]
}
If the response status is "queued" or "running", poll GET https://api.doitong.com/v1/requests/REQUEST_ID?wait=20 until it is "succeeded"; the files are in outputs[].url. POST https://api.doitong.com/v1/quote/ffmpeg-api/compose with the same body returns the exact price before the run.
This request: ≈$0.001 1 API credit Run it on this page
Your new API key. It is shown only now and is already in the code and in the API key field below. Keep it secret: never put it in code that runs in a browser.
Your first result goes here
Build a request below and run it with your API key. Outputs are copied to our storage, kept forever or 7 days for free.
Build a request
Controls are generated from the model schema. The code and the price update as you change them.
/run/ffmpeg-api/compose?wait=20
quote → $0.001
# Run the model; wait up to 20 s for the finished result in the same call
curl -X POST "https://api.doitong.com/v1/run/ffmpeg-api/compose?wait=20" \
-H "Authorization: Bearer $DOITONG_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"tracks": [
{
"id": "your-id",
"type": "example",
"keyframes": [
{
"timestamp": 1,
"duration": 1,
"url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg"
}
]
}
]
}'
# Still "queued" or "running"? Poll with the id from the response:
curl "https://api.doitong.com/v1/requests/REQUEST_ID?wait=20" \
-H "Authorization: Bearer $DOITONG_API_KEY"
const API = "https://api.doitong.com/v1";
const headers = {
"Authorization": "Bearer " + process.env.DOITONG_API_KEY,
"Content-Type": "application/json",
};
// Run the model; wait up to 20 s for the finished result in the same call
let res = await fetch(API + "/run/ffmpeg-api/compose?wait=20", {
method: "POST",
headers,
body: JSON.stringify({
"tracks": [
{
"id": "your-id",
"type": "example",
"keyframes": [
{
"timestamp": 1,
"duration": 1,
"url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg"
}
]
}
]
}),
});
let request = await res.json();
if (!res.ok) throw new Error(request.error.code + ": " + request.error.message);
// Not finished yet: long-poll until it is
while (request.status === "queued" || request.status === "running") {
res = await fetch(API + "/requests/" + request.id + "?wait=20", { headers });
request = await res.json();
}
if (request.status !== "succeeded") throw new Error(JSON.stringify(request.error));
console.log(request.outputs.map((o) => o.url), request.cost.credits + " API credits ($" + request.cost.usd + ")");
import os
import requests
API = "https://api.doitong.com/v1"
headers = {"Authorization": "Bearer " + os.environ["DOITONG_API_KEY"]}
payload = {
"tracks": [
{
"id": "your-id",
"type": "example",
"keyframes": [
{
"timestamp": 1,
"duration": 1,
"url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg",
},
],
},
],
}
# Run the model; wait up to 20 s for the finished result in the same call
r = requests.post(API + "/run/ffmpeg-api/compose", params={"wait": 20}, json=payload, headers=headers)
request = r.json()
if not r.ok:
raise RuntimeError(request["error"]["code"] + ": " + request["error"]["message"])
# Not finished yet: long-poll until it is
while request["status"] in ("queued", "running"):
request = requests.get(API + "/requests/" + request["id"], params={"wait": 20}, headers=headers).json()
if request["status"] != "succeeded":
raise RuntimeError(request["error"])
print([o["url"] for o in request["outputs"]], request["cost"]["credits"], "API credits", "$" + request["cost"]["usd"])
{
"jsonrpc": "2.0",
"id": 1,
"method": "tools/call",
"params": {
"name": "run",
"arguments": {
"model_id": "ffmpeg-api/compose",
"input": {
"tracks": [
{
"id": "your-id",
"type": "example",
"keyframes": [
{
"timestamp": 1,
"duration": 1,
"url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg"
}
]
}
]
},
"wait_seconds": 20
}
}
}
Run this request
Your key stays in this browser: it is sent only to the Doitong API and saved (localStorage) only if you tick Remember. Get an API key
About FFmpeg API Compose
Builds a final video from a list of `tracks`. The list must contain exactly one visual track, either a video or an image, and may include any number of audio tracks. The output is JSON with a `video_url` and a `thumbnail_url`.
Parameters
tracksrequired
tracks[].idrequired
tracks[].typerequired
tracks[].keyframesrequired
tracks[].keyframes[].timestamprequired
tracks[].keyframes[].durationrequired
tracks[].keyframes[].urlrequired
Output
{
"id": "req_8k2m4q7x1z9c3v5b6n0p2r4t",
"object": "request",
"model": "ffmpeg-api/compose",
"status": "succeeded",
"created_at": "2026-10-20T12:00:00Z",
"started_at": "2026-10-20T12:00:02Z",
"completed_at": "2026-10-20T12:00:09Z",
"queue_position": null,
"cost": {
"credits": 1,
"usd": "0.001",
"charged": 1,
"refunded": 0
},
"input": {
"tracks": [
{
"id": "your-id",
"type": "example",
"keyframes": [
{
"timestamp": 1,
"duration": 1,
"url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg"
}
]
}
]
},
"output": {
"video_url": "string",
"thumbnail_url": "string"
},
"outputs": [
{
"type": "file",
"url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.jpeg",
"content_type": "image/jpeg",
"file_size": 1843200,
"stored": true
}
],
"error": null,
"metrics": {
"inference_seconds": 6.8
},
"urls": {
"self": "https://api.doitong.com/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t",
"cancel": "https://api.doitong.com/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t/cancel"
}
}
Fields of output
- video_url
- string (video URL)URL pointing to the processed video.
- thumbnail_url
- stringURL pointing to the thumbnail for the video.
Other FFmpeg variants
More models: Video to Video
For AI agents: this page as Markdown is at https://doitong.com/en-GB/developers/models/ffmpeg-api/compose.md. All models and guides: https://doitong.com/developers/llms.txt