A hosted youtube-transcript-api alternative

What breaks with the library in the cloud

The library itself is fine. It is a small, well-kept Python package that reads the caption track the YouTube player uses. What breaks is the network it runs from, and it breaks in four distinct ways.

• Datacenter IPs are blocked. YouTube refuses caption requests from address ranges it knows belong to AWS, GCP, Azure, Hetzner, Fly, Railway and the rest. The library raises RequestBlocked, or IpBlocked once you have added a proxy that also got flagged. The README says as much: "you will most likely run into RequestBlocked or IpBlockedexceptions when deploying your code to any cloud solutions."
• Consent and cookie walls.Exit nodes in the EU get YouTube's cookie-consent page instead of the watch page, which surfaces as a redirect the library cannot follow. It is intermittent, so it looks like flakiness rather than a bug.
• Format changes. YouTube changes the player response shape a few times a year. Every change is an outage until a new library release ships and you deploy it.
• Proxy cost.The fix the README recommends is rotating residential proxies, billed per gigabyte. Each fetch pulls the full watch page through the proxy, and every blocked retry pays for that page again. With the library's default retry count, one bad video can burn 10 to 15 MB.

None of these are things you can fix in application code. They are properties of where the code runs and who runs it, which is why the usual answer is to move the fetch somewhere else.

What a hosted alternative changes

TranscriptAPI runs the same class of fetch on our side, through a residential proxy pool pinned to one region, with the retry ceiling, the consent-wall handling and the parser upkeep already done. You send a video ID over HTTPS and get segments back.

• No proxy vendor, no rotation code, no bandwidth line item.
• Transcripts are cached indefinitely, so a second request for the same video costs nothing.
• A video that cannot be read (captions off, private, deleted, age-restricted) returns a 404 with retryable: false, a plain-language hint, and the credit refunded.
• Search, channel listings and playlists sit next to transcripts, which the library does not do at all.

What it does not do: download video or audio, read comments, return descriptions or tags, or manage a channel you own. It returns captions that already exist. If a video has none, nobody can give you a transcript without running speech-to-text.

youtube-transcript-api vs TranscriptAPI

Python: before and after

Python · YouTubeTranscriptApi().fetch → requests.get

from youtube_transcript_api import YouTubeTranscriptApi
from youtube_transcript_api.proxies import WebshareProxyConfig

ytt = YouTubeTranscriptApi(
    proxy_config=WebshareProxyConfig(
        proxy_username="...",
        proxy_password="...",
    )
)

# raises RequestBlocked / IpBlocked when the
# exit IP is flagged; you write the retry
fetched = ytt.fetch("dQw4w9WgXcQ", languages=["en"])
segments = fetched.to_raw_data()
# [{"text": ..., "start": 0.0, "duration": 3.52}]

import requests

r = requests.get(
    "https://api.transcriptapi.io/transcript",
    params={"video_id": "dQw4w9WgXcQ",
            "language": "en"},
    headers={"Authorization": "Bearer ta_..."},
    timeout=60,
)
r.raise_for_status()
segments = r.json()["transcript"]
# [{"start": 0.0, "duration": 3.52, "text": ...}]

# SRT instead? add format="srt"
# German? add translate_to="de"

The keys match, so a function that used to return fetched.to_raw_data() can return r.json()["transcript"] and nothing downstream notices. The one behaviour change worth handling: a 404 means the video has no readable captions and retryable is false, so do not loop on it. A 502 or 503 is transient and already refunded; retry with backoff.

The full endpoint-by-endpoint mapping, including the older get_transcript() classmethod form, is in the migration guide.

When the library is still the right choice

Be honest with yourself about volume and network before you swap. The library wins when:

• You run on a residential connection, a Raspberry Pi at home, or a desktop script. There is no block to route around.
• You fetch a few transcripts a day and a failure means a manual retry, not an on-call page.
• You are not allowed to send video IDs or transcript text to a third party.
• You want translated captions only where YouTube already provides them, and never AI translation.

If you are on a cloud host and fetching in the hundreds a day, the proxy bill and the retry code are what you are paying for; that is the line item a hosted API replaces. For a broader look at the other paid options, see the comparison of YouTube transcript APIs, and if you are mid-outage right now, start with what each blocked error means.

Pricing

One credit is one transcript, search or listing. Translation adds one credit per 40 segments, minimum two. Cached repeats are free, and any call that fails after being charged is refunded.

Details and the per-call cost of translation are on the pricing page. The hosted vs self-hosted cost breakdown works the numbers at 1,000, 25,000 and 200,000 transcripts a month, proxy bandwidth included.

Frequently asked questions