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Facebook · Guide

How to get Facebook comment replies

TL;DR
To get Facebook comment replies, sign up for a free Captapi key, then send one GET request to /v1/facebook/comment-replies with your input. You get clean JSON back in seconds for ~30 credits (0.6/result) per call — no OAuth, scraping or platform SDKs. Pull replies under a Facebook comment — author, text, likes, and time.
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How to get Facebook comment replies (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 Comment Replies API

    Send an authenticated GET request to /v1/facebook/comment-replies 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/comment-replies?url=https%3A%2F%2Fwww.facebook.com%2FNASA%2Fposts%2Fpfbid02skzNsrLf5atYZfzvzHAK9gHwDnZC5u4pDZMLQ1u3iJmfoA8tNsGpT7Uj6WPs6K3Rl&comment_id=7311234567890123456" \
  -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",
    "commentId": "Y29tbWVudDoxNTQxNzUzNTIzOTg2Njg1XzEwMDkxOTUyNDgzMTUxMjU=",
    "totalReturned": 6,
    "replies": [
      {
        "id": "1042165238137511",
        "url": "https://www.facebook.com/NASA/posts/pfbid02sYSwFx8buCZPUWBSu4R21XWs6dbEM8aZmq4m4pJXi1MgGED8ZEVbh2gtwKen47GLl?comment_id=1009195248315125&reply_comment_id=1042165238137511",
        "text": "Richard Alexandrowich why?",
        "author": "Lachlan Cryer",
        "authorUrl": "https://www.facebook.com/people/Lachlan-Cryer/pfbid037Fw8AwytJZwABgAyKqXvg6n6HsH5EBh31CJy2LqYKGFZP4gGpqDdgrGSepb5JA2Dl/",
        "authorAvatarUrl": "https://scontent-ord5-1.xx.fbcdn.net/v/t1.30497-1/453178253_471506465671661_2781666950760530985_n.png?stp=cp0_dst-png&cstp=mx2048x2048&ctp=s32x32&_nc_cat=1&ccb=1-7&_nc_sid=136b72&_nc_ohc=ysO1ZV-VvVsQ7kNvwGQat2w&_nc_oc=AdqyOpt7sgxS1GOXfVnh4AGru5ZrcQBOdLVPCIU95LbKWTvSKm-KRt8hbQu7aAF0xIU&_nc_zt=24&_nc_ht=scontent-ord5-1.xx&_nc_ss=72289&oh=00_AQAvHcbCnbHot7JhZP-1RRO-OZMlN7tEnwZ-5LTb8dTk7A&oe=6A6F3DFA",
        "likeCount": 1,
        "publishedAt": "2026-06-03T07:43:21.000Z"
      },
      {
        "id": "862001559702967",
        "url": "https://www.facebook.com/NASA/posts/pfbid02sYSwFx8buCZPUWBSu4R21XWs6dbEM8aZmq4m4pJXi1MgGED8ZEVbh2gtwKen47GLl?comment_id=1009195248315125&reply_comment_id=862001559702967",
        "text": "Lachlan Cryer astronomy opens up the mind.  Aren't you curious about our universe?  That's a bizarre answer.  Why?  Be realistic.",
        "author": "Richard Alexandrowich",
        "authorUrl": "https://www.facebook.com/richard.alexandrowich.1",
        "authorAvatarUrl": "https://scontent-ord5-3.xx.fbcdn.net/v/t39.30808-1/449687176_1970527473417419_1705720154636413099_n.jpg?stp=cp0_dst-jpg_tt6&cstp=mx960x957&ctp=s32x32&_nc_cat=100&ccb=1-7&_nc_sid=e99d92&_nc_ohc=25mjsrWPI24Q7kNvwFACZDA&_nc_oc=Ado-GFX2ImuxH9sxcjtiak-EgsIIcUVqX_E87VQYTMagMKpO5WpzpUjq4p-iXH7zwR8&_nc_zt=24&_nc_ht=scontent-ord5-3.xx&_nc_gid=NIIM6fx5SgvnG1k9kta5zw&_nc_ss=72289&oh=00_AQAXfWvzNWOEM2rph99sGQLkJK2GRuIAitSXOvIsvSX1IQ&oe=6A4DA704",
        "likeCount": 4,
        "publishedAt": "2026-06-03T08:28:16.000Z"
      },
      {
        "id": "2085300562423547",
        "url": "https://www.facebook.com/NASA/posts/pfbid02sYSwFx8buCZPUWBSu4R21XWs6dbEM8aZmq4m4pJXi1MgGED8ZEVbh2gtwKen47GLl?comment_id=1009195248315125&reply_comment_id=2085300562423547",
        "text": "Richard Alexandrowich yeah cross dimensional communication tech done the trick for me I bet nasa wish they had it",
        "author": "Lachlan Cryer",
        "authorUrl": "https://www.facebook.com/people/Lachlan-Cryer/pfbid037Fw8AwytJZwABgAyKqXvg6n6HsH5EBh31CJy2LqYKGFZP4gGpqDdgrGSepb5JA2Dl/",
        "authorAvatarUrl": "https://scontent-ord5-1.xx.fbcdn.net/v/t1.30497-1/453178253_471506465671661_2781666950760530985_n.png?stp=cp0_dst-png&cstp=mx2048x2048&ctp=s32x32&_nc_cat=1&ccb=1-7&_nc_sid=136b72&_nc_ohc=ysO1ZV-VvVsQ7kNvwGQat2w&_nc_oc=AdqyOpt7sgxS1GOXfVnh4AGru5ZrcQBOdLVPCIU95LbKWTvSKm-KRt8hbQu7aAF0xIU&_nc_zt=24&_nc_ht=scontent-ord5-1.xx&_nc_ss=72289&oh=00_AQAvHcbCnbHot7JhZP-1RRO-OZMlN7tEnwZ-5LTb8dTk7A&oe=6A6F3DFA",
        "likeCount": 1,
        "publishedAt": "2026-06-03T08:33:50.000Z"
      },
      {
        "id": "1294286436201104",
        "url": "https://www.facebook.com/NASA/posts/pfbid02sYSwFx8buCZPUWBSu4R21XWs6dbEM8aZmq4m4pJXi1MgGED8ZEVbh2gtwKen47GLl?comment_id=1009195248315125&reply_comment_id=1294286436201104",
        "text": "Lachlan Cryer I didn't understand a word you said.",
        "author": "Richard Alexandrowich",
        "authorUrl": "https://www.facebook.com/richard.alexandrowich.1",
        "authorAvatarUrl": "https://scontent-ord5-3.xx.fbcdn.net/v/t39.30808-1/449687176_1970527473417419_1705720154636413099_n.jpg?stp=cp0_dst-jpg_tt6&cstp=mx960x957&ctp=s32x32&_nc_cat=100&ccb=1-7&_nc_sid=e99d92&_nc_ohc=25mjsrWPI24Q7kNvwFACZDA&_nc_oc=Ado-GFX2ImuxH9sxcjtiak-EgsIIcUVqX_E87VQYTMagMKpO5WpzpUjq4p-iXH7zwR8&_nc_zt=24&_nc_ht=scontent-ord5-3.xx&_nc_gid=NIIM6fx5SgvnG1k9kta5zw&_nc_ss=72289&oh=00_AQAXfWvzNWOEM2rph99sGQLkJK2GRuIAitSXOvIsvSX1IQ&oe=6A4DA704",
        "likeCount": 2,
        "publishedAt": "2026-06-03T09:13:27.000Z"
      },
      {
        "id": "1373392837992731",
        "url": "https://www.facebook.com/NASA/posts/pfbid02sYSwFx8buCZPUWBSu4R21XWs6dbEM8aZmq4m4pJXi1MgGED8ZEVbh2gtwKen47GLl?comment_id=1009195248315125&reply_comment_id=1373392837992731",
        "text": "Richard Alexandrowich",
        "author": "Lachlan Cryer",
        "authorUrl": "https://www.facebook.com/people/Lachlan-Cryer/pfbid037Fw8AwytJZwABgAyKqXvg6n6HsH5EBh31CJy2LqYKGFZP4gGpqDdgrGSepb5JA2Dl/",
        "authorAvatarUrl": "https://scontent-ord5-1.xx.fbcdn.net/v/t1.30497-1/453178253_471506465671661_2781666950760530985_n.png?stp=cp0_dst-png&cstp=mx2048x2048&ctp=s32x32&_nc_cat=1&ccb=1-7&_nc_sid=136b72&_nc_ohc=ysO1ZV-VvVsQ7kNvwGQat2w&_nc_oc=AdqyOpt7sgxS1GOXfVnh4AGru5ZrcQBOdLVPCIU95LbKWTvSKm-KRt8hbQu7aAF0xIU&_nc_zt=24&_nc_ht=scontent-ord5-1.xx&_nc_ss=72289&oh=00_AQAvHcbCnbHot7JhZP-1RRO-OZMlN7tEnwZ-5LTb8dTk7A&oe=6A6F3DFA",
        "likeCount": 1,
        "publishedAt": "2026-06-03T14:45:35.000Z"
      },
      {
        "id": "1194713802729629",
        "url": "https://www.facebook.com/NASA/posts/pfbid02sYSwFx8buCZPUWBSu4R21XWs6dbEM8aZmq4m4pJXi1MgGED8ZEVbh2gtwKen47GLl?comment_id=1009195248315125&reply_comment_id=1194713802729629",
        "text": "Lachlan Cryer   Someone is off their meds. 🙄",
        "author": "Don Magarian",
        "authorUrl": null,
        "authorAvatarUrl": "https://scontent-ord5-3.xx.fbcdn.net/v/t39.30808-1/662882588_26721162167509050_7868451136913084385_n.jpg?stp=cp0_dst-jpg_tt6&cstp=mx1000x1000&ctp=s32x32&_nc_cat=110&ccb=1-7&_nc_sid=e99d92&_nc_ohc=uzUzY8UwBjcQ7kNvwF_ym_D&_nc_oc=AdquHUcmiHEPV6M_cCCZ3HZu83s088NbiPEQ64Y034qFJR0jHfi-FgCnJRWt4f4OX0Y&_nc_zt=24&_nc_ht=scontent-ord5-3.xx&_nc_gid=NIIM6fx5SgvnG1k9kta5zw&_nc_ss=72289&oh=00_AQC-yUmeKeO3Cr1QPfiFJhgoArVfH5xXgJAhSZHgA5EnLg&oe=6A4DCC2D",
        "likeCount": 1,
        "publishedAt": "2026-06-06T07:08:31.000Z"
      }
    ]
  }
}

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

Request parameters

NameTypeRequiredDescription
urlstring YesFacebook post URL the comment belongs to. The URL platform must match this endpoint's platform. Do not pass cross-platform URLs, e.g. YouTube to TikTok, Instagram to Facebook, LinkedIn to X/Twitter, or Pinterest to Rumble.
comment_idstring YesID of the parent comment to fetch replies for (from the comments endpoint).
limitintegerNoMax items to return (default 50, max 500). Billed per result.
cachebooleanNoSet true to serve from the 24h response cache. Default false — always fetch fresh data.

Frequently asked questions

What does the Facebook Comment Replies API do?

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

How many credits does the Facebook Comment Replies API cost?

At the default limit this endpoint costs 30 credits (0.6 per result). Billing scales with how many results you request. Pass cache=true to serve from the 24h shared cache (0 credits on hit); default is always fresh. 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 Comment Replies 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 shared cache (0 credits on hit); default is always fresh. Use it for analytics, monitoring, and content automation.

Ready to get Facebook comment replies?

Start free with 100 credits — no credit card required.

Get your free API key