Reddit
GET /v1/reddit/post-comments

Reddit Post Comments API

Pull Reddit comments at scale with author, text, likes, and reply threads.

20 credits per request (0.4 per result)
TL;DR
Pull Reddit comments at scale with author, text, likes, and reply threads. The Reddit Post Comments API (Reddit) is a single authenticated GET request to /v1/reddit/post-comments that responds with clean JSON, costs 20 credits, and is cached for 24 hours (repeat calls are free). Start with 100 free credits — no credit card.

What is the Reddit Post Comments API?

The Reddit Post Comments API lets you pull comments with author, text, likes, and replies from Reddit with a single REST call. No OAuth, no scraping infrastructure, and no platform SDKs — send the URL, get clean structured JSON back. Results are cached for 24 hours, so repeat lookups are instant and free.

What you get

  • Comment text, author name, and handle
  • Like counts and reply threads
  • Pagination via the limit parameter
  • Timestamps for trend and sentiment analysis

Try it

Fill in the parameters below and copy a ready-to-run request in your language of choice.

Parameters

curl "https://api.captapi.com/v1/reddit/post-comments?url=https%3A%2F%2Fwww.reddit.com%2Fr%2Ftechnology%2Fcomments%2F1a2b3c4%2Fexample_discussion_thread%2F" \
  -H "Authorization: Bearer capt_live_..."

Edit the parameters and the code updates instantly. Switch languages and hit copy.

Example response

{
  "success": true,
  "data": {
    "totalReturned": 5,
    "comments": [
      {
        "id": "t1_myap7vg",
        "author": "TimesandSundayTimes",
        "text": "Scientists using the James Webb space telescope are seeing the “seeds God has sown in the universe”, the Pope has said, saying it was “an exciting time to be an astronomer”.\n\nHe said the telescope revealed wonders of which the authors of biblical scriptures could only dream, and its images of the oldest and most distant galaxies in the cosmos filled people with a sense of “mysterious joy”.\n\nThe Pope held an audience for young astronomers attending a summer school at the Vatican Observatory outside Rome this week, focusing on the telescope’s work.\n\nHe told them it was a “truly remarkable instrument” that meant that “for the first time, we are able to peer deeply into the atmosphere of exoplanets where life may be developing and study the nebulae where planetary systems themselves are forming”",
        "upvotes": 2608,
        "publishedAt": "2025-06-17T17:18:38.997000+0000",
        "url": "https://www.reddit.com/r/Astronomy/comments/1ldt0qj/pope_leo_james_webb_telescope_shows_us_what_the/myap7vg/",
        "parentId": null,
        "depth": 0,
        "isSubmitter": null,
        "edited": null,
        "stickied": null
      },
      {
        "id": "t1_myay1kt",
        "author": "Andromeda321",
        "text": "Astronomer here! I had a friend who made it into this summer school back in undergrad. Only two people get in from every country and it’s very prestigious, but always sounded like an amazing experience for students out there who are interested! (Like, you go to Italy for the summer and live in a castle and learn about astronomy for free. And you meet the Pope!)\n\nLink for any students reading who might want to apply: https://www.vaticanobservatory.org/education/summer-school/",
        "upvotes": 1121,
        "publishedAt": "2025-06-17T17:58:03.725000+0000",
        "url": "https://www.reddit.com/r/Astronomy/comments/1ldt0qj/pope_leo_james_webb_telescope_shows_us_what_the/myay1kt/",
        "parentId": "t1_myap7vg",
        "depth": 1,
        "isSubmitter": null,
        "edited": true,
        "stickied": null
      },
      {
        "id": "t1_mycacrk",
        "author": "sabrinapak",
        "text": "What class were you? I was in the class of 2003, the last to meet Pope John Paul. It was a great program and experience!",
        "upvotes": 165,
        "publishedAt": "2025-06-17T21:48:12.917000+0000",
        "url": "https://www.reddit.com/r/Astronomy/comments/1ldt0qj/pope_leo_james_webb_telescope_shows_us_what_the/mycacrk/",
        "parentId": "t1_myay1kt",
        "depth": 2,
        "isSubmitter": null,
        "edited": null,
        "stickied": null
      },
      {
        "id": "t1_myce37w",
        "author": "Andromeda321",
        "text": "I wasn’t in it, my friend was, she went in 2007. :)",
        "upvotes": 104,
        "publishedAt": "2025-06-17T22:07:34.654000+0000",
        "url": "https://www.reddit.com/r/Astronomy/comments/1ldt0qj/pope_leo_james_webb_telescope_shows_us_what_the/myce37w/",
        "parentId": "t1_mycacrk",
        "depth": 3,
        "isSubmitter": null,
        "edited": null,
        "stickied": null
      },
      {
        "id": "t1_mycwe3c",
        "author": "_thenotsodarkknight_",
        "text": "I attended one too, and highly highly recommend it to any and every astro student!!!! They do one every 2 years, on various astronomy topics, with a different theme every time. The lecturers are all experts from the field, and it's all secular (which may be a worry for some people), with no talk of religion whatsoever. \n\nApplications are due in November generally, so very early for a program in June. The next should be ~ November 2026!",
        "upvotes": 56,
        "publishedAt": "2025-06-17T23:46:39.556000+0000",
        "url": "https://www.reddit.com/r/Astronomy/comments/1ldt0qj/pope_leo_james_webb_telescope_shows_us_what_the/mycwe3c/",
        "parentId": "t1_myay1kt",
        "depth": 2,
        "isSubmitter": null,
        "edited": true,
        "stickied": null
      }
    ]
  }
}

Billing metadata is returned in response headers: X-Captapi-Credits (credits charged), X-Captapi-Cache (hit or miss), and X-Captapi-Source. Failed requests (4xx/5xx) are never charged. See the full list of error codes in the error reference.

Response structure

A successful call returns success, cached, creditsUsed, and a data object with the following fields:

Result

  • totalNumber of comments returned.

Each comment

Each item in comments contains:

  • authorComment author name or handle.
  • textThe comment text.
  • likesNumber of likes on the comment.
  • repliesNumber of replies in the thread.

Parameters

NameTypeRequiredDescription
urlstringYesReddit post URL. 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.
limitintegerNoMax items to return (default 50, max 500). Billed per result.

Authentication: send your key as Authorization: Bearer capt_live_.... A typical call costs 20 credits — billed per result, so the exact amount scales with how many items you request. Repeat calls for the same request are served from cache for free (metrics refresh within ~1 hour).

Using an AI agent? This endpoint is the MCP tool reddit_post_comments via @captapi/mcp. Set it up →

How it works

  1. 1. Sign up — get 100 free credits, no card required.
  2. 2. Create a key from your dashboard.
  3. 3. Send one request to /v1/reddit/post-comments and parse the JSON response.

Use cases

Sentiment Analysis

Understand how audiences react to content.

Community Insights

Surface FAQs, requests, and recurring themes.

Moderation

Detect spam, abuse, or policy violations at scale.

Market Research

Mine genuine opinions and product feedback.

Frequently asked questions

What does the Reddit Post Comments API do?+

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

How many credits does the Reddit Post Comments API cost?+

Each successful call costs 20 credits. Responses are cached for 24 hours, and cached results cost 0 credits. Failed or empty results are never charged.

Do I need a Reddit 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, and Rumble. We handle proxies, rate limits, retries, and authentication for you.

Is the Reddit Post Comments API suitable for production use?+

Yes. It is a stable REST endpoint with predictable JSON, automatic retries, and a shared 24-hour cache. Use it for RAG pipelines, analytics, monitoring, and content automation.

More Reddit APIs

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