TikTok Comments API with Python: Fetch, Paginate and Analyze Video Comments

Quickstart

Every request needs one header: Authorization: Bearer $FETCHPI_API_KEY. Create a free key in the console and you can replay every snippet on this page as-is.

curl -s -H "Authorization: Bearer $FETCHPI_API_KEY"   "https://fetchpi.com/v1/tiktok/posts/{id}/comments?freshness=default"

Why normalized comments matter

Comment scraping breaks on every layout change and gives you a different JSON shape per platform. FetchPI returns comments as one record type — author, text, created_at, metrics — whether the video is TikTok, a Reddit post or a YouTube video. Your analysis code stays platform-agnostic.

Fetch and paginate

Lists return a sealed opaque cursor in next_cursor. Pass it back as cursor — a cursor issued by another provider is rejected rather than silently misread.

import os, requests

API = "https://fetchpi.com"
KEY = os.environ["FETCHPI_API_KEY"]

def comments(post_id, cursor=None):
    params = {"freshness": "default"}
    if cursor:
        params["cursor"] = cursor
    r = requests.get(
        f"{API}/v1/tiktok/posts/{post_id}/comments",
        headers={"Authorization": f"Bearer {KEY}"},
        params=params, timeout=30,
    )
    r.raise_for_status()
    return r.json()

page = comments("7410886000000000001")
for c in page["data"]:
    print(c["author"]["username"], c["text"][:60])

while page.get("next_cursor"):
    page = comments("7410886000000000001", page["next_cursor"])

What a normalized comment looks like

{
  "id": "7410886123456789012",
  "platform": "tiktok",
  "type": "comment",
  "author": {"id": "7004994945113", "username": "creator.dev", "verified": true},
  "text": "This is the way.",
  "created_at": "2026-10-01T10:00:00Z",
  "metrics": {"likes": 864},
  "fetched_at": "2026-10-19T09:00:00Z"
}

Cost control

Comments pages are billed per successful call. For periodic re-reads of the same video use freshness=default with a max_age you can tolerate — cache-mode hits bill at the catalog cache tier (most capabilities half price), and meta.billing in every response shows what you actually paid.