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Facebook · Guide

How to get Facebook comments

TL;DR
To get Facebook comments, sign up for a free Captapi key, then send one GET request to /v1/facebook/comments with your input. You get clean JSON back in seconds for 2 credits per call — no OAuth, scraping or platform SDKs. Facebook post comments with reactionCount, reactions.like when mixed, author.id (pfbid), and replyCount.
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How to get Facebook comments (step by step)

  1. 1

    Get a free API key

    Create a free Captapi account (100 credits, no card) and generate an API key from the dashboard.

  2. 2

    Call the Facebook Comments API

    Send an authenticated GET request to /v1/facebook/comments with your input. No OAuth, no scraping setup.

  3. 3

    Read the JSON response

    Parse the clean JSON response. Pass cache=true for a free 24h cache hit; default is always fresh.

Code example

curl "https://api.captapi.com/v1/facebook/comments" \
  -H "Authorization: Bearer capt_live_..."
# or: -H "x-api-key: capt_live_..."

What the response looks like

{
  "success": true,
  "data": {
    "platform": "facebook",
    "url": "https://www.facebook.com/NASA/posts/pfbid02skzNsrLf5atYZfzvzHAK9gHwDnZC5u4pDZMLQ1u3iJmfoA8tNsGpT7Uj6WPs6K3Rl",
    "totalReturned": 2,
    "comments": [
      {
        "id": "1003271445544158",
        "url": "https://www.facebook.com/NASA/posts/pfbid0ozvoLoowKvCysA2CZkXKTAVCRLoVECcrC7W8eQbQYvxBNKMCQAzV8baSgDa8t5Hol?comment_id=1003271445544158",
        "text": "how is this different from JWST?",
        "author": {
          "id": "pfbid02SdzVLPYTHY2eGMdrwFrLw54sVZdguAGnLUj4RPL3HxFtG2D4PBBjptiMEwpB21Ehl",
          "name": "Robin Bergsagel",
          "shortName": "Robin",
          "gender": "FEMALE",
          "avatarUrl": "https://scontent.fsgn24-1.fna.fbcdn.net/v/t39.30808-1/692472460_26663220403348161_6124206666765972294_n.jpg?stp=cp0_dst-jpg_tt6&cstp=mx960x960&ctp=s32x32&_nc_cat=102&ccb=1-7&_nc_sid=e99d92&_nc_ohc=3HNDMjGZhBIQ7kNvwH_Yi6V&_nc_oc=AdoxMiMSoY_ToCduVunc3YCOZtk_SXSgox578bFFqLiP_4rQwkwI465-N_iYgGAJFKc&_nc_zt=24&_nc_ht=scontent.fsgn24-1.fna&_nc_gid=HH_crC25V3cxSQmbs1qi6w&_nc_ss=7b289&oh=00_AQDnijJpCb3QQr1TMy3wnG3ZpT2laUi0wvxSIlu-E9nHXw&oe=6A6C3A29"
        },
        "authorAvatarUrl": "https://scontent.fsgn24-1.fna.fbcdn.net/v/t39.30808-1/692472460_26663220403348161_6124206666765972294_n.jpg?stp=cp0_dst-jpg_tt6&cstp=mx960x960&ctp=s32x32&_nc_cat=102&ccb=1-7&_nc_sid=e99d92&_nc_ohc=3HNDMjGZhBIQ7kNvwH_Yi6V&_nc_oc=AdoxMiMSoY_ToCduVunc3YCOZtk_SXSgox578bFFqLiP_4rQwkwI465-N_iYgGAJFKc&_nc_zt=24&_nc_ht=scontent.fsgn24-1.fna&_nc_gid=HH_crC25V3cxSQmbs1qi6w&_nc_ss=7b289&oh=00_AQDnijJpCb3QQr1TMy3wnG3ZpT2laUi0wvxSIlu-E9nHXw&oe=6A6C3A29",
        "likeCount": 95,
        "publishedAt": "2026-06-02T19:30:33+00:00",
        "replyCount": 1,
        "reactionCount": 95,
        "reactions": {
          "like": 79,
          "love": 4,
          "care": 0,
          "haha": 1,
          "wow": 11,
          "sad": 0,
          "anger": 0,
          "thankful": 0,
          "pride": 0,
          "confused": 0
        }
      },
      {
        "id": "1565653145168639",
        "url": "https://www.facebook.com/NASA/posts/pfbid0ozvoLoowKvCysA2CZkXKTAVCRLoVECcrC7W8eQbQYvxBNKMCQAzV8baSgDa8t5Hol?comment_id=1565653145168639",
        "text": "You had me at Roman",
        "author": {
          "id": "pfbid0exampleAuthorIdFor15656531",
          "name": "Mike Harwick",
          "shortName": "Mike",
          "gender": "MALE",
          "avatarUrl": "https://scontent.fsgn13-1.fna.fbcdn.net/v/t39.30808-1/708345356_26903531449306692_9193818255719987217_n.jpg?stp=cp0_dst-jpg_tt6&cstp=mx960x960&ctp=s32x32&_nc_cat=100&ccb=1-7&_nc_sid=e99d92&_nc_ohc=TzWa-f368dwQ7kNvwEMPaUV&_nc_oc=AdpdLHrvXy7m167xxHhinaiUIlBoo2jzN-yKoz2hmtKPDhZMy8t4wFudGRE1dEwFuas&_nc_zt=24&_nc_ht=scontent.fsgn13-1.fna&_nc_gid=HH_crC25V3cxSQmbs1qi6w&_nc_ss=7b289&oh=00_AQCw8rv9R1a-kXHBcH09C7AdRzTbIlhxf4mps8XzaYwIlQ&oe=6A6C1254"
        },
        "authorAvatarUrl": "https://scontent.fsgn13-1.fna.fbcdn.net/v/t39.30808-1/708345356_26903531449306692_9193818255719987217_n.jpg?stp=cp0_dst-jpg_tt6&cstp=mx960x960&ctp=s32x32&_nc_cat=100&ccb=1-7&_nc_sid=e99d92&_nc_ohc=TzWa-f368dwQ7kNvwEMPaUV&_nc_oc=AdpdLHrvXy7m167xxHhinaiUIlBoo2jzN-yKoz2hmtKPDhZMy8t4wFudGRE1dEwFuas&_nc_zt=24&_nc_ht=scontent.fsgn13-1.fna&_nc_gid=HH_crC25V3cxSQmbs1qi6w&_nc_ss=7b289&oh=00_AQCw8rv9R1a-kXHBcH09C7AdRzTbIlhxf4mps8XzaYwIlQ&oe=6A6C1254",
        "likeCount": 3,
        "publishedAt": "2026-06-03T12:30:24+00:00",
        "replyCount": 0,
        "reactionCount": 3,
        "reactions": {
          "like": 3,
          "love": 0,
          "care": 0,
          "haha": 0,
          "wow": 0,
          "sad": 0,
          "anger": 0,
          "thankful": 0,
          "pride": 0,
          "confused": 0
        }
      }
    ],
    "hasMore": true,
    "nextCursor": null,
    "feedbackId": "ZmVlZGJhY2s6MTU0MTc1MzUyMzk4NjY4NQ=="
  }
}

Billing metadata (credits charged, cache hit/miss) is returned in the X-Captapi-Credits and X-Captapi-Cache response headers.

Request parameters

NameTypeRequiredDescription
urlstringNoFacebook post or Reel URL. Omit when feedbackId is set. The URL platform must match this endpoint's platform.
feedbackIdstringNoPost feedback id from /v1/facebook/details (base64 feedback:POSTID). Prefer when you already have it — also accepts feedback_id.
limitintegerNoMax items to return (default 50, max 500). Flat 2 credits per call.
cachebooleanNoSet true to serve from the 24h response cache (0 credits on hit). Default false — always fetch fresh.

Frequently asked questions

What does the Facebook Comments API do?

The Facebook Comments API lets you pull comments with author, text, likes, and replies from a public Facebook video using one GET request to /v1/facebook/comments. It returns clean JSON — no OAuth or infrastructure setup required.

How many credits does the Facebook Comments API cost?

Each successful call costs 2 credits. Pass cache=true to serve from the 24h cache (0 credits on hit); default is always fresh. Selected profile endpoints also accept cacheMaxAge=1d|3d|7d|14d|30d. Failed or empty results are never charged.

Do I need a Facebook API key or OAuth?

No. A single Captapi key works across every platform Captapi supports — YouTube, TikTok, Instagram, Facebook, Twitter/X, Reddit, Threads, Bluesky, Pinterest, LinkedIn, Rumble, Spotify, Kwai, and more. We handle proxies, rate limits, retries, and authentication for you.

Is the Facebook Comments API suitable for production use?

Yes. It is a stable REST endpoint with predictable JSON and automatic retries. Pass cache=true to serve from the 24h cache (0 credits on hit); default is always fresh. Selected profile endpoints also accept cacheMaxAge=1d|3d|7d|14d|30d. Use it for analytics, monitoring, and content automation.

Ready to get Facebook comments?

Start free with 100 credits — no credit card required.

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