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POST/v1/call/x.list_members

X (Twitter) list members API

Only on X.

The X (Twitter) list members API returns a page of the accounts an X list is made of, by the list's ID, 20 a page: handle, name, bio, follower count, verification. One call costs 5 credits ($0.01 to $0.017 depending on the pack); failed calls are free. Call it over HTTP or from your AI client over MCP. Last tested 2026-10-17.

100 credits on sign-up, no card needed
5 creditsper call
Up to 20 per pageone page per call
2026-10-17last tested
784 Bsample response, 1 item

Last updated:

Request and response

curl https://api.socialtoai.com/v1/call/x.list_members \  -H "Authorization: Bearer $SOCIALTOAI_KEY" \  -H "Content-Type: application/json" \  -d '{    "id": "84839422"  }'
import osimport requestsresponse = requests.post(    "https://api.socialtoai.com/v1/call/x.list_members",    headers={"Authorization": f"Bearer {os.environ['SOCIALTOAI_KEY']}"},    json={        "id": "84839422",    },)print(response.json())
# Connected over MCP? Ask in plain words.Use the X list members interface (x.list_members) with id: 84839422.# Your AI calls the call tool with:{  "id": "84839422"}
Sign in to run5 creditsOpens in the Playground with these parameters after you sign in. It never runs by itself.
200 OK784 B5 credits
{  "op": "x.list_members",  "platform": "x",  "status": "ok",  "items": [    {      "platform": "x",      "id": "…",      "ref": "…",      "approx": [],      "type": "account",      "username": "…",      "name": "…",      "url": "https://example.com/…",      "bio": "…",      "verified": true,      "followers": 743231,      "following": 2,      "posts_count": 512    }  ],  "unavailable": [],  "page": {    "has_more": true,    "cursor": "cur_…",    "cursor_expires_at": "2026-10-12T22:46:23.000Z"  },  "cost_credits": 5}
@…·text removed from the sample
743,231 followers2 following512 posts

Names and text were removed from the sample; the numbers are as recorded.

Sample data1 of the 20 items recorded

2 parameters.
1 required.

Send them as a JSON body with POST. Your key goes in the Authorization header, never in the URL.

NameTypeRequiredDefaultDescription
idstringRequired—List ID, a string of digits
cursorstringOptional—Pass page.cursor from the last response to get the next page.

Where to get what you send.

id

List ID, a string of digits (e.g. 84839422)

No other interface of the platform returns it: take it from the web page or link as described above.

The fields of each item.
What X cannot give is marked.

FieldTypeMeaning
items[].usernamestringThe handle.
items[].namestringThe display name.
items[].urlstringA link to the profile.
items[].biostringThe bio.
items[].verifiedbooleanWhether the account is verified.
items[].followersintegerFollower count.
items[].followingintegerHow many accounts it follows.
items[].posts_countintegerHow many posts it has published.
nullFields X cannot give

X gives every field of this call. Where one item lacks a value, that field is null.

Every item also has platform, id, ref, approx and type; the response around the items is the same on every call. Response format

What to expect.

One call returns a page of up to 20 items. When page.has_more is true, send page.cursor back as cursor for the next page; each page costs 5 credits and a cursor works for 30 minutes.
A call that runs and finds nothing is a successful call: status is "empty", items is empty, and it costs 5 credits.
On this call X cannot tell a post that does not exist from one with no data: both come back as empty, and both are charged.

1 call per second per key, 5 after a purchase; going over is not charged. Rate limits

A failed call costs 0 credits and is never retried on its own. Error codes

Once connected over MCP, these questions use it.

  1. Get a page of the accounts an X list is made of, by the list's ID, 20 a page: 84839422.
    call {"op":"x.list_members","id":"84839422"}
    5 credits

Questions.
Short answers.

Everything on X
Do I need a X account or X's own API access?
No. You only need a SocialToAI key. The call returns content and account information publicly visible on X; you never sign in to X or apply for anything there.

Your AI is one URL away
from all of social media.

100 credits on sign-up, no card needed