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The client provides a convenient way to interact with the model API.
npm install --save @fal-ai/clientThe @fal-ai/serverless-client package has been deprecated in favor of @fal-ai/client. Install the new package and update your imports — see client setup.
Set FAL_KEY as an environment variable in your runtime.
export FAL_KEY="YOUR_API_KEY"The client API handles the API submit protocol. It will handle the request status updates and return the result when the request is completed.
import { fal } from "@fal-ai/client";
const result = await fal.subscribe("fal-ai/csm-1b", {
input: {
scene: [{
text: "Hey how are you doing.",
speaker_id: 0
}, {
text: "Pretty good, pretty good.",
speaker_id: 1
}, {
text: "I'm great, so happy to be speaking to you.",
speaker_id: 0
}]
},
logs: true,
onQueueUpdate: (update) => {
if (update.status === "IN_PROGRESS") {
update.logs.map((log) => log.message).forEach(console.log);
}
},
});
console.log(result.data);
console.log(result.requestId);The API uses an API Key for authentication. It is recommended you set the FAL_KEY environment variable in your runtime when possible.
import { fal } from "@fal-ai/client";
fal.config({
credentials: "YOUR_FAL_KEY"
});When running code on the client-side (e.g. in a browser, mobile app or GUI applications), make sure to not expose your FAL_KEY. Instead, use a server-side proxy to make requests to the API. For more information, check out our server-side integration guide.
The client API provides a convenient way to submit requests to the model.
import { fal } from "@fal-ai/client";
const { request_id } = await fal.queue.submit("fal-ai/csm-1b", {
input: {
scene: [{
text: "Hey how are you doing.",
speaker_id: 0
}, {
text: "Pretty good, pretty good.",
speaker_id: 1
}, {
text: "I'm great, so happy to be speaking to you.",
speaker_id: 0
}]
},
webhookUrl: "https://optional.webhook.url/for/results",
});You can fetch the status of a request to check if it is completed or still in progress.
import { fal } from "@fal-ai/client";
const status = await fal.queue.status("fal-ai/csm-1b", {
requestId: "764cabcf-b745-4b3e-ae38-1200304cf45b",
logs: true,
});Once the request is completed, you can fetch the result. See the Output Schema for the expected result format.
import { fal } from "@fal-ai/client";
const result = await fal.queue.result("fal-ai/csm-1b", {
requestId: "764cabcf-b745-4b3e-ae38-1200304cf45b"
});
console.log(result.data);
console.log(result.requestId);Some attributes in the API accept file URLs as input. Whenever that's the case you can pass your own URL or a Base64 data URI.
You can pass a Base64 data URI as a file input. The API will handle the file decoding for you. Keep in mind that for large files, this alternative although convenient can impact the request performance.
You can also pass your own URLs as long as they are publicly accessible. Be aware that some hosts might block cross-site requests, rate-limit, or consider the request as a bot.
We provide a convenient file storage that allows you to upload files and use them in your requests. You can upload files using the client API and use the returned URL in your requests.
import { fal } from "@fal-ai/client";
const file = new File(["Hello, World!"], "hello.txt", { type: "text/plain" });
const url = await fal.storage.upload(file);The client will auto-upload the file for you if you pass a binary object (e.g. File, Data).
Read more about file handling in our file upload guide.
The text to generate an audio from.
The context to generate an audio from.
{
"scene": [
{
"text": "Hey how are you doing.",
"speaker_id": 0
},
{
"text": "Pretty good, pretty good.",
"speaker_id": 1
},
{
"text": "I'm great, so happy to be speaking to you.",
"speaker_id": 0
}
],
"context": [
{
"audio_url": "https://huggingface.co/spaces/sesame/csm-1b/resolve/main/prompts/conversational_a.wav",
"speaker_id": 0,
"prompt": "like revising for an exam I'd have to try and like keep up the momentum because I'd start really early I'd be like okay I'm gonna start revising now and then like you're revising for ages and then I just like start losing steam I didn't do that for the exam we had recently to be fair that was a more of a last minute scenario but like yeah I'm trying to like yeah I noticed this yesterday that like Mondays I sort of start the day with this not like a panic but like a"
},
{
"audio_url": "https://huggingface.co/spaces/sesame/csm-1b/resolve/main/prompts/conversational_b.wav",
"speaker_id": 1,
"prompt": "like a super Mario level. Like it's very like high detail. And like, once you get into the park, it just like, everything looks like a computer game and they have all these, like, you know, if, if there's like a, you know, like in a Mario game, they will have like a question block. And if you like, you know, punch it, a coin will come out. So like everyone, when they come into the park, they get like this little bracelet and then you can go punching question blocks around."
}
]
}{
"audio": {
"url": "",
"content_type": "image/png",
"file_name": "z9RV14K95DvU.png",
"file_size": 4404019
}
}url string* requiredThe URL where the file can be downloaded from.
content_type stringThe mime type of the file.
file_name stringThe name of the file. It will be auto-generated if not provided.
file_size integerThe size of the file in bytes.