Facebook Followers API

POST

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Check follower, following, post and like counts for a Facebook account or Page by username. A precision flag marks approximate values. It returns totals only, not a list of individual followers.

Send POST https://api.everyinfra.com/api/v1/social with platform set to facebook and action set to followers. Price $1.39 per 1,000 requests ($0.001389 per call). Failed calls and empty results are not charged. Synchronous. For slow jobs add "mode": "async" to the body, take the job_id and poll.

AI prompt

Please help me write a data collection script with the EveryInfra Facebook Followers endpoint (facebook/followers).

How the endpoint works:
- Request: POST https://api.everyinfra.com/api/v1/social with the header Authorization: Bearer <API key>. Read the key from the EVERYINFRA_API_KEY environment variable and never hard-code it.
- In the request body, set platform to facebook and action to followers, and put the parameters inside params.
- Required parameters:
- username: Specifies the Facebook account or Page identifier without an @ symbol for the followers action.
- Optional parameters:
- channel: This parameter is used for compatibility with the account identifier in the followers action. If username is supplied, it takes precedence, and public requests must still include the required username parameter.
- Returns one object. Main fields: id, username, url, follower_count, following_count, post_count, like_count, connection_count, precision.
- Example request body:
{
"platform": "facebook",
"action": "followers",
"params": {
"username": "zuck"
}
}
- Price: $1.39 per 1,000 requests; failed and empty results are not charged.
- For dozens or hundreds of targets, add "mode": "async" to the body: you get a job_id at once and poll GET https://api.everyinfra.com/api/v1/jobs/{job_id} for the result.
- On 422, fix the request using the suggested parameter names and allowed values in the error; on 429 or 503, wait for Retry-After and try again.

Before writing code, ask me which targets I need, how many, which fields, and what output format I want; then confirm the plan and the rough cost with me.

Request parameters

Name	In	Type	Required	Default	Description
`Authorization`	header	`string`	Yes	-	Bearer followed by your API key. Create it in the console; never put it in a URL or a code repository.
`platform`	body	`string`	Yes	`facebook`	Platform identifier, fixed value.
`action`	body	`string`	Yes	`followers`	Capability identifier, fixed value.
`username`	body.params	`string`	Yes	-	Specifies the Facebook account or Page identifier without an @ symbol for the followers action. This capability returns a total follower count object rather than an exported list of individual follower profiles or a user relationship graph.
`channel`	body.params	`string`	No	-	This parameter is used for compatibility with the account identifier in the followers action. If username is supplied, it takes precedence, and public requests must still include the required username parameter. This parameter does not represent a chat channel ID.

Code samples

bash

curl -X POST 'https://api.everyinfra.com/api/v1/social' \
  -H "Authorization: Bearer $EVERYINFRA_API_KEY" \
  -H 'Content-Type: application/json' \
  --data-raw '{
  "platform": "facebook",
  "action": "followers",
  "params": {
    "username": "zuck"
  }
}'

OpenAPI definition (JSON)Samples read the key from the EVERYINFRA_API_KEY environment variable; copied code never contains your key.

Response example

json

{  "id": "req_…",  "platform": "facebook",  "action": "followers",  "results": {    "id": "zuck",    "username": "zuck",    "url": "https://www.facebook.com/•••",    "follower_count": 121476586,    "precision": "exact",    "platform": "facebook"  },  "billing": {    "charged": …,    "charged_usd": …,    "balance_after_usd": …,    …  },  "quota": { … }}

Response fields

Business data is in results. The table lists the fields a record can contain; values the platform does not show are never made up.

Field	Meaning
`id`	The record's unique ID on the platform. Unique only within one platform; IDs can repeat across platforms.
`username`	Username (@handle).
`url`	Link to the record on the platform.
`follower_count`	Followers. null means not disclosed, not 0.
`following_count`	Accounts followed. null means not disclosed, not 0.
`post_count`	Total posts. null means not disclosed, not 0.
`like_count`	Likes. null means the platform or this capability does not disclose it; it is not 0.
`connection_count`	Keeps the platform's own meaning
`precision`	Keeps the platform's own meaning
`platform`	Source platform identifier, the same as platform in the request (for example xiaohongshu, tiktok).

Errors and billing

401: Missing or invalid key.
402: Insufficient balance. Top up first.
422: Invalid parameter name or value. Fix it using the suggestions in the error. No charge.
429: Per-minute request limit reached. Wait for Retry-After, then try again.
503: Could not complete. The held charge is returned to your balance. If the outcome is unknown, verify it before you retry.
200 empty: No data. No charge.

Errors

Official references

Used only to check objects and terms. They do not imply authorization or endorsement of EveryInfra by the platform.

Facebook: Following a Page Is Distinct from Liking It ↗
Official Facebook documentation explains that Follow is used to receive Page updates and notes differences for Pages transitioning from Like to Follow structures; this differentiates `follower_count` from `like_count`, but does not indicate that this platform can export follower lists.
Checked 2026-09-04