One request shape, every service

1. Authentication

Send your key in the X-API-Key header. Keys are created in the dashboard and shown only once — store them as a server-side secret and never ship them in browser code.

X-API-Key: ff_live_xxxxxxxxxxxxxxxxxxxx

2. Base URL & endpoint shape

GET https://fastfetchz.com/v1/{platform}/{service}?target={handle|url|id}&limit={n}

The same path is also served from your project host under /v1/… so you can test without leaving the app.

3. Parameters

Number precision

Counts such as follower_count and like_count are always the most exact figure the platform publishes, never a display-rounded one. Two exceptions are the platform's own doing and not ours: YouTube publishes subscriber counts rounded to three significant figures (15.1M), and Facebook rounds Page follower counts for large Pages. Where a platform only publishes a rounded figure we return that figure rather than invent precision — every other count in the catalog is exact and safe to track day over day.

4. Make a call

curl "https://fastfetchz.com/v1/instagram/profile?target=nasa" \
  -H "X-API-Key: $FASTFETCHZ_KEY"

const res = await fetch(
  "https://fastfetchz.com/v1/tiktok/videos-user-videos?target=nasa&limit=10",
  { headers: { "X-API-Key": process.env.FASTFETCHZ_KEY } },
);
const payload = await res.json();
console.log(payload.data);

import os, requests

res = requests.get(
    "https://fastfetchz.com/v1/youtube/transcript",
    params={"target": "dQw4w9WgXcQ"},
    headers={"X-API-Key": os.environ["FASTFETCHZ_KEY"]},
)
print(res.json()["data"])

5. Errors

Failed calls are never charged. Errors return a JSON body of the shape { error: { code, message, status } }.

Service reference

Each service has its own reference page with parameters, an example request and a full example response.