# Facebook 粉丝数量 API (facebook.followers)

- Canonical page: https://everyinfra.com/facebook-api/followers
- Endpoint: POST https://api.everyinfra.com/api/v1/social with {"platform": "facebook", "action": "followers", "params": {...}}
- Price: $0.001389 per call ($1.39 per 1,000 requests); failed calls and empty results are not charged
- Returns: single object
- Mode: sync; add "mode": "async" for slow tasks

## Health

- Live health (24h percent, hourly and daily trends): https://api.everyinfra.com/api/v1/social/availability?platform=facebook&action=followers

## Parameters

| name | type | required | default | description |
|---|---|---|---|---|
| username | not declared | yes | not declared | followers 的 Facebook 账号/主页标识，不带 @；followers 返回粉丝数量对象，不是粉丝个人名单，不能用于逐人导出关系链。 |
| channel | not declared | no | not declared | followers 的账号标识兼容输入；username 已提供时优先 username，且公开请求仍需包含必填 username。这里不是聊天频道 ID。 |

## Response fields (items in `results`)

| field | meaning |
|---|---|
| id | 该记录在原平台上的唯一标识。仅在同一平台内唯一，跨平台可能重复。 |
| username | 用户名（@handle）。 |
| url | 该记录在原平台上的可访问链接。 |
| follower_count | 粉丝数。null 表示不公开，不等于 0。 |
| following_count | 关注数。null 表示不公开，不等于 0。 |
| post_count | 发布内容总数。null 表示不公开，不等于 0。 |
| like_count | 点赞数。null 表示该平台或该接口不公开此数据，不等于 0。 |
| connection_count | 人脉数。 |
| precision | 数据精确度标记（平台对模糊值的标注）。 |
| platform | 数据来源平台标识，与请求里的 platform 一致（如 xiaohongshu、tiktok）。 |

## Example

```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"
  }
}'
```

```python
import os
import requests

response = requests.post(
    "https://api.everyinfra.com/api/v1/social",
    headers={"Authorization": f"Bearer {os.environ['EVERYINFRA_API_KEY']}"},
    json={
        "platform": "facebook",
        "action": "followers",
        "params": {
            "username": "zuck",
        },
    },
    timeout=120,
)
print(response.status_code)
print(response.json())
```

## Response example

Real response to the example request above, captured 2026-09-26T08:56:04Z. `results` and `count` are real with personal information (names, handles, avatars, profile links, contact details) removed. `id`, `billing` and `quota` differ on every call, so only their shape is shown.

```text
{
  "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": { … }
}
```

## Also

- Capability catalog (no key): https://api.everyinfra.com/api/v1/social/catalog?platform=facebook
- OpenAPI: https://everyinfra.com/openapi.json · Agents guide: https://everyinfra.com/agents.md