# Public post

> A public post's text, author, engagement counts and attached media.

- **Request:** `GET https://api.lurkapi.com/v1/facebook/post`
- **Auth:** `x-api-key` header ([get a free key](https://lurkapi.com/login?next=/dashboard))
- **Cost:** 1 credit per call. Validation errors, `401`/`402`/`429` rejections and `5xx` failures are free; `not_found` is charged ([how charging works](https://lurkapi.com/docs.md#credits)).
- **MCP tool:** `facebook_post` on `https://api.lurkapi.com/mcp`
- **Freshness:** responses are cached for up to 5 minutes
- **Try it live:** https://lurkapi.com/docs/facebook/post#try (no signup)
- **Platform:** [Facebook](https://lurkapi.com/docs/facebook.md) (facebook.com/ads/library)
- **Web page:** https://lurkapi.com/docs/facebook/post

## When to use this

Pass a public Facebook post permalink or video URL. Public counts can be hidden or delayed; missing fields stay null. The response includes media exposed to logged-out visitors, but does not fetch comments or follow share links. CDN media URLs expire.

## Parameters

All parameters go in the query string.

| Name | Type | Required | Default | Allowed values | Description | Example |
| --- | --- | --- | --- | --- | --- | --- |
| `url` | string | yes |  |  | A public Facebook post or video URL. Supports posts, permalink.php, story.php, videos and watch URLs; share links and groups are unavailable. | `https://www.facebook.com/attn/posts/pfbid0j1Czf2gGDVqeQ8KiMLFm3pWN8GxsQmeRrVhimWDzMuKQoR8r4b1knNsejELmUgyhl` |

## Example request

Replace `YOUR_API_KEY` with your key, or set `LURKAPI_KEY` for the code. [Get a free key](https://lurkapi.com/login?next=/dashboard).

curl:

```bash
curl "https://api.lurkapi.com/v1/facebook/post?url=https%3A%2F%2Fwww.facebook.com%2Fattn%2Fposts%2Fpfbid0j1Czf2gGDVqeQ8KiMLFm3pWN8GxsQmeRrVhimWDzMuKQoR8r4b1knNsejELmUgyhl" \
  -H "x-api-key: YOUR_API_KEY"
```

JavaScript:

```js
const params = new URLSearchParams({
  url: "https://www.facebook.com/attn/posts/pfbid0j1Czf2gGDVqeQ8KiMLFm3pWN8GxsQmeRrVhimWDzMuKQoR8r4b1knNsejELmUgyhl",
});
const res = await fetch(`https://api.lurkapi.com/v1/facebook/post?${params}`, {
  headers: { "x-api-key": process.env.LURKAPI_KEY },
});
const data = await res.json();
if (!data.success) throw new Error(`${data.code}: ${data.error}`);
console.log(data.reactions);
```

Python:

```python
import os
import requests

res = requests.get(
    "https://api.lurkapi.com/v1/facebook/post",
    params={
        "url": "https://www.facebook.com/attn/posts/pfbid0j1Czf2gGDVqeQ8KiMLFm3pWN8GxsQmeRrVhimWDzMuKQoR8r4b1knNsejELmUgyhl",
    },
    headers={"x-api-key": os.environ["LURKAPI_KEY"]},
    timeout=60,
)
data = res.json()
if not data["success"]:
    raise RuntimeError(f"{data['code']}: {data['error']}")
print(data["reactions"])
```

## Example response

A real response from this endpoint, captured from the live API and trimmed to a couple of items. Strings over 96 characters (mostly signed media URLs) are cut short and end in `…`.

200 OK (application/json):

```json
{
  "success": true,
  "credits_remaining": 999998,
  "credits_charged": 1,
  "post_id": "740190678139306",
  "url": "https://www.facebook.com/attn/videos/6968553779868435/",
  "text": "Learning new problem-solving skills is hard for students…and parents. Ne…",
  "created_at": 1701975646,
  "author": {
    "id": "100064451419378",
    "name": "ATTN:",
    "url": "https://www.facebook.com/attn"
  },
  "reaction_count": 3207,
  "comment_count": 399,
  "share_count": 730,
  "view_count": 603570,
  "reactions": [
    {
      "name": "Like",
      "count": 1999
    },
    {
      "name": "Haha",
      "count": 855
    },
    {
      "name": "Love",
      "count": 312
    },
    {
      "name": "Wow",
      "count": 16
    },
    {
      "name": "Angry",
      "count": 15
    },
    {
      "name": "Care",
      "count": 6
    },
    {
      "name": "Sad",
      "count": 4
    }
  ],
  "media": [
    {
      "id": "6968553779868435",
      "type": "video",
      "url": "https://www.facebook.com/attn/videos/6968553779868435/",
      "image_url": "https://scontent-iad6-1.xx.fbcdn.net/v/t15.5256-10/386476950_83614653830…",
      "width": 1080,
      "height": 1080,
      "sd_url": "https://video-iad3-2.xx.fbcdn.net/o1/v/t2/f2/m412/AQOwPfru6RYxPhcMZ2m2r_…",
      "hd_url": "https://video-iad3-2.xx.fbcdn.net/o1/v/t2/f2/m266/AQPuJagXj7pCjEWxEfAYdX…",
      "duration_s": 132.675
    }
  ]
}
```

## Response fields

Every field of a successful response. `[]` marks a list: `a[].b` is the `b` of each item in `a`. **nullable** fields can be `null`; **optional** fields can be missing.

| Field | Type | Description |
| --- | --- | --- |
| `success` | `true` | Always true here; errors have `success: false`. |
| `credits_remaining` | `number` | Your balance after this call. On anonymous playground calls: free tries left today. |
| `credits_charged` | `number` | Credits this call cost; 0 on free endpoints. On anonymous playground calls: tries used (1). |
| `post_id` | `string` | Numeric post id, separate from Facebook's opaque GraphQL story id. |
| `url` | `string` | The post's canonical Facebook permalink. |
| `text` | `string`, nullable | Public post text, preserving line breaks; null for a media-only post. |
| `created_at` | `number`, nullable | Post publication time as Unix seconds; null when Facebook does not disclose it to public visitors. |
| `author` | `object` | The author of this post, rather than an author mentioned in its text or comments. |
| `author.id` | `string` | Author profile id. |
| `author.name` | `string` | Author display name. |
| `author.url` | `string`, nullable | Author's public Facebook URL. |
| `reaction_count` | `number`, nullable | Total reactions to the post; null when Facebook does not disclose it to public visitors. |
| `comment_count` | `number`, nullable | Total comments Facebook reports for the public comment list; null when Facebook does not disclose it to public visitors. |
| `share_count` | `number`, nullable | Share count; null when Facebook does not disclose it to public visitors. |
| `view_count` | `number`, nullable | Video view count; null when Facebook does not disclose it to public visitors. |
| `reactions` | `object[]` | The reaction breakdown Facebook includes; an empty list means no breakdown was exposed. |
| `reactions[].name` | `string`, nullable | Facebook's localized reaction name, such as Like or Love. |
| `reactions[].count` | `number`, nullable | Number of reactions of this type; null when Facebook does not disclose it to public visitors. |
| `media` | `object[]` | Publicly exposed attached images and videos; delivery URLs can expire. |
| `media[].id` | `string`, nullable | Media id. |
| `media[].type` | `string` | Media format. |
| `media[].url` | `string`, nullable | Facebook media permalink. |
| `media[].image_url` | `string`, nullable | Image or video thumbnail CDN URL; CDN links expire. |
| `media[].width` | `number`, nullable | Media width in pixels; null when Facebook does not disclose it to public visitors. |
| `media[].height` | `number`, nullable | Media height in pixels; null when Facebook does not disclose it to public visitors. |
| `media[].sd_url` | `string`, nullable | Standard-definition progressive video CDN URL; null for images. CDN links expire. |
| `media[].hd_url` | `string`, nullable | High-definition progressive video CDN URL; null for images. CDN links expire. |
| `media[].duration_s` | `number`, nullable | Video duration in seconds; null for images; null when Facebook does not disclose it to public visitors. |

## Caching and freshness

Responses are cached for up to 5 minutes, so a repeat call within that window can return the same data. It still costs 1 credit.

## Errors

Errors return `{ success: false, error, code, docs }` with the HTTP status below. Validation errors, `401`/`402`/`429` rejections and `5xx` failures are free; `not_found` is charged ([how charging works](https://lurkapi.com/docs.md#credits)). [All error codes](https://lurkapi.com/docs.md#errors).

| Status | Code | Meaning |
| --- | --- | --- |
| 401 | `missing_api_key` | No API key. Send it in the `x-api-key` header. |
| 401 | `invalid_api_key` | The key is unknown or was revoked. |
| 402 | `insufficient_credits` | Not enough credits for this call. Buy a pack or wait for tomorrow's top-up. |
| 403 | `not_public` | The platform confirmed this account or content isn't available to logged-out visitors. Use a publicly visible target. Charged when the platform was checked. |
| 404 | `not_found` | The endpoint, or the thing you asked for (ad, post, subreddit), doesn't exist. Charged when the platform was checked. |
| 405 | `method_not_allowed` | Endpoints take GET with query params. |
| 429 | `rate_limited` | Too many calls at once. Wait for the `retry-after` seconds, then retry. |
| 500 | `internal_error` | Something broke on our side. Retry; 5xx errors are free. |
| 502 | `upstream_error` | The platform didn't give a usable answer. Retry; 5xx errors are free. |
| 503 | `upstream_busy` | All our connections to the platform are busy. Retry in a few seconds; 5xx errors are free. |
| 504 | `upstream_timeout` | The platform took over 30 seconds to answer. Retry; timeouts are free. |

## Use it in Claude

Once LurkAPI is [connected to Claude](https://lurkapi.com/docs.md#claude), this endpoint is the `facebook_post` tool. Ask in plain English, for example:

Ask Claude:

```text
Use LurkAPI's facebook_post with url "https://www.facebook.com/attn/posts/pfbid0j1Czf2gGDVqeQ8KiMLFm3pWN8GxsQmeRrVhimWDzMuKQoR8r4b1knNsejELmUgyhl" and summarize what you find.
```

Claude calls `facebook_post` with arguments like these, and each call costs 1 credit:

Tool arguments:

```json
{
  "url": "https://www.facebook.com/attn/posts/pfbid0j1Czf2gGDVqeQ8KiMLFm3pWN8GxsQmeRrVhimWDzMuKQoR8r4b1knNsejELmUgyhl"
}
```

Tool results skip nulls and empty lists to save tokens.

---

Previous: [Public profile](https://lurkapi.com/docs/facebook/profile.md) · Next: [Subreddit posts](https://lurkapi.com/docs/reddit/subreddit-posts.md)