[ Tools ]·Free · No signup · Live data

Twitter Follow Checker

Free tool to check whether one Twitter (X) account follows another. Enter two handles, hit Check, get the answer in seconds — live data through TwitterAPI.io's real-time API. Ten free checks per IP per day, no login required.

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What this tool actually checks

On Twitter / X, “follow” is a one-directional relationship. @nasa can follow @elonmusk without him following back, or both can follow each other (a “mutual follow”), or neither does. This tool answers the specific question: does the first account explicitly follow the second?

Under the hood, the page calls the X follow graph through the TwitterAPI.io API once per check and returns the boolean answer. The data is live — there's no cached layer between you and the platform.

When this is useful

Outreach prep. Confirm someone follows the person you're about to mention or pitch — useful for cold DMs and warm intros.
Competitive audit. Map a competitor's mutual-follow network to identify their inner circle versus broad audience.
Campaign verification. Confirm a follow happened after a recent Twitter campaign or partnership announcement.
Bot pattern spotting. One-way follows in unusual ratios can signal bot networks; this is a quick spot-check during a larger investigation.

Limitations

Only public accounts (protected / locked profiles are not accessible).
Both handles must exist and not be suspended.
10 checks per IP per day. Sign up with Google for free starter credits to remove the cap.

Want this programmatically?

Same data via our REST API. No rate limit. Google sign-in, free starter credits.

Get an API key →

Same check, in three lines of Python

For repeat use or programmatic checks:

import requests

r = requests.get(
    "https://api.twitterapi.io/twitter/user/check_follow_relationship",
    headers={"X-API-Key": "YOUR_KEY"},
    params={"source_user_name": "nasa", "target_user_name": "elonmusk"},
)
print(r.json())  # {"following": True/False, "followed_by": True/False, ...}

Frequently asked

Is this free?

Yes — 10 checks per day per IP, no signup. For more checks, sign up for free starter credits.

Does it work for protected accounts?

No. Only public profiles. Protected / locked accounts can't be checked because their follow lists aren't public.

How fresh is the data?

Live. Each check is a single sub-second API call to the X follow graph through TwitterAPI.io's real-time API — no cached results.

Do you log my searches?

The backend keeps an aggregate counter per IP per day to enforce the 10-check rate limit and detect abuse. No per-query content (the usernames you entered) is retained beyond the response cycle. See /privacy for the full policy.

Can I use this programmatically for research or automation?

Sign up and get an API key for unlimited use. The underlying endpoint returns the same data we use here, plus the inverse (followed_by) and the full TwitterAPI.io feature set — search, user lookup, follower graphs, real-time stream.

Unlimited checks via the API

Free starter credits cover end-to-end testing. No card, no application queue.

Get an API key