YouTube Followers API

POST

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Check the subscriber count of a YouTube channel from its handle. Get following, post, like and connection counts and a precision flag for rounded figures. Pass the @handle in username. It returns aggregate counts, not a list of subscribers.

Send POST https://api.everyinfra.com/api/v1/social with platform set to youtube and action set to followers. Price $0.56 per 1,000 requests ($0.000556 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 YouTube Followers endpoint (youtube/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 youtube and action to followers, and put the parameters inside params.
- Required parameters:
- username: The channel handle (optional leading @) required by the followers and shorts actions. The followers action returns aggregate subscriber counts rather than user lists.
- Optional parameters:
- channel: A compatibility alias for specifying a channel handle. Full /channel/UC... URLs may fail to parse across helper utilities, so prefer passing a handle or using the URL parameter explicitly provided by the action.
- Returns one object. Main fields: id, username, url, follower_count, following_count, post_count, like_count, connection_count, precision.
- Example request body:
{
"platform": "youtube",
"action": "followers",
"params": {
"username": "@NASA"
}
}
- Price: $0.56 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	`youtube`	Platform identifier, fixed value.
`action`	body	`string`	Yes	`followers`	Capability identifier, fixed value.
`username`	body.params	`string`	Yes	-	The channel handle (optional leading @) required by the followers and shorts actions. The followers action returns aggregate subscriber counts rather than user lists. The shorts action prioritizes handles and does not treat UC... channel IDs as identical identifiers.
`channel`	body.params	`string`	No	-	A compatibility alias for specifying a channel handle. Full /channel/UC... URLs may fail to parse across helper utilities, so prefer passing a handle or using the URL parameter explicitly provided by the action.

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": "youtube",
  "action": "followers",
  "params": {
    "username": "@NASA"
  }
}'

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": "youtube",  "action": "followers",  "results": {    "id": "NASA",    "username": "NASA",    "url": "https://www.youtube.com/@NASA",    "follower_count": 15100000,    "post_count": 6100,    "platform": "youtube"  },  "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.

YouTube: Understanding Channel Handles ↗
YouTube defines a handle as a unique channel identifier starting with @, which is distinct from the channel display name.
Checked 2026-09-04