/v1/comments"platform": "facebook"Facebook Comments API
The comments under one post.
The Facebook Comments API returns the comments under a public Facebook post: text, likes, reply count and time, in the same response format as every other SocialToAI call. One call costs 2 credits ($0.004 to $0.0067 depending on the pack); failed calls are free. Call it over HTTP or from your AI client over MCP. Last tested 2026-10-17.
Last updated:
Request and response
curl https://api.socialtoai.com/v1/comments \ -H "Authorization: Bearer $SOCIALTOAI_KEY" \ -H "Content-Type: application/json" \ -d '{ "platform": "facebook", "id": "1650176549811048" }'import osimport requestsresponse = requests.post( "https://api.socialtoai.com/v1/comments", headers={"Authorization": f"Bearer {os.environ['SOCIALTOAI_KEY']}"}, json={ "platform": "facebook", "id": "1650176549811048", },)print(response.json())# Connected over MCP? Ask in plain words.Read the comments under this Facebook post: 1650176549811048# Your AI calls the comments tool with:{ "platform": "facebook", "id": "1650176549811048"}{ "platform": "facebook", "status": "ok", "items": [ { "platform": "facebook", "id": "…", "ref": "…", "approx": [], "type": "comment", "url": null, "text": "…", "published_at": "2026-10-08T14:48:35.000Z", "author": { "label": "anonymous_1" }, "metrics": { "likes": 10 }, "reply_count": 2, "content_id": "…", "parent_id": null, "root_id": null } ], "unavailable": ["url", "parent_id", "root_id"], "page": { "has_more": true, "cursor": "cur_…", "cursor_expires_at": "2026-10-12T19:47:10.000Z" }, "cost_credits": 2}Names and text were removed from the sample; the numbers are as recorded.
3 parameters.
2 required.
Send them as a JSON body with POST. Your key goes in the Authorization header, never in the URL.
| Name | Type | Required | Default | Description |
|---|---|---|---|---|
| platform | string | Required | — | Always "facebook" on this page. |
| id | string | Required | — | Post ID, a string of digits: the id returned by the page's post list and by the post itself |
| cursor | string | Optional | — | Pass page.cursor from the last response to get the next page. |
Where to get what you send.
idPost ID, a string of digits: the id returned by the page's post list and by the post itself (e.g. 1650176549811048)
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 Facebook cannot give is marked.
| Field | Type | Meaning |
|---|---|---|
| items[].url | stringalways null | A link to the comment, where the platform has one. |
| items[].text | string | The comment itself. |
| items[].published_at | string | When it was posted, ISO 8601 in UTC. |
| items[].author.label | string | An anonymous label, stable within one response. Whoever wrote it is never named. |
| items[].metrics.likes | integer | Likes. |
| items[].reply_count | integer | How many replies it has. |
| items[].content_id | string | The item the comment is under. |
| items[].parent_id | stringalways null | The comment it replies to directly; null for a top-level comment. |
| items[].root_id | stringalways null | The top-level comment its thread hangs under. |
nullFields Facebook cannot giveRead null as “Facebook did not give this”, not as zero. These are always null on this call:
urlA link to the comment, where the platform has one.parent_idThe comment it replies to directly; null for a top-level comment.root_idThe top-level comment its thread hangs under.
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.
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.
Read the comments under this Facebook post: 1650176549811048
2 creditscomments {"platform":"facebook","id":"1650176549811048"}
These ready-made tools call it when they run.
comment-insightsThe topics in their comments and how big each is, plus questions, buying intent and complaints
account-watchWhat each one posted lately, and which posts beat its usual numbers
creator-cardTheir accounts on other platforms, the numbers on each, and how sure the match is
The same call on other platforms.
All platforms and prices/v1/comments{ "platform": "facebook", "id": "1650176549811048" }2 creditsper call