GET /v1/linkedin/post-transcript

LinkedIn Post Transcript API

Extract a transcript from a public LinkedIn post with spoken audio or video.

1 credit per request

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TL;DR

Extract a transcript from a public LinkedIn post with spoken audio or video. The LinkedIn Post Transcript API (LinkedIn) is a single authenticated GET request to /v1/linkedin/post-transcript that responds with clean JSON and costs 1 credit. Pass cache=true for a free 24h cache hit; default is always fresh. Start with 100 free credits — no credit card.

What is the LinkedIn Post Transcript API?

The LinkedIn Post Transcript API lets you extract the full, timestamped transcript for LinkedIn post transcript with a single REST call. No OAuth, no infrastructure to maintain, and no platform SDKs — send the request, get clean structured JSON back. Pass cache=true to serve from the 24h shared cache (0 credits on hit); default is always fresh.

What you get

Full transcript text with start/end timestamps when available
Auto-detected language and segment count
AI audio transcription fallback when no captions exist
Clean JSON ready for search, subtitles, or AI pipelines

Try it

Open in Playground

Fill in the parameters below and copy a ready-to-run request, or open the live Playground to run it against your account (no API key paste).

Parameters

url*stringLinkedIn post or activity 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.cacheoptionalbooleanSet true to serve from the 24h response cache. Default false — always fetch fresh data.

API keyoptionalPaste your key to get a ready-to-run snippet. It stays in your browser.Sign in to run live

curl "https://api.captapi.com/v1/linkedin/post-transcript?url=https%3A%2F%2Fwww.linkedin.com%2Fposts%2Fmicrosoft_the-most-meaningful-breakthroughs-happen-activity-7477715981667086336-x68i" \
  -H "Authorization: Bearer capt_live_..."
# or: -H "x-api-key: capt_live_..."

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

Example response

{
  "success": true,
  "data": {
    "platform": "linkedin",
    "url": "https://www.linkedin.com/posts/microsoft_the-most-meaningful-breakthroughs-happen-activity-7477715981667086336-x68i",
    "transcript": "The most meaningful breakthroughs happen when technology is built with people in mind.\n \nThat was the message at Microsoft Build this month, where we announced a host of new tools to help developers build, dream and create. \n \nIn June’s edition of The Monthly Tech-In, we’re sharing stories from Build and beyond about the developers, founders and communities who are using AI to tackle real-world challenges, from helping creators protect their work to advancing more inclusive AI systems.\n \nRead more about the people and innovations who are shaping what's next:",
    "transcriptSegments": [
      {
        "text": "The most meaningful breakthroughs happen when technology is built with people in mind.\n \nThat was the message at Microsoft Build this month, where we announced a host of new tools to help developers build, dream and create. \n \nIn June’s edition of The Monthly Tech-In, we’re sharing stories from Build and beyond about the developers, founders and communities who are using AI to tackle real-world challenges, from helping creators protect their work to advancing more inclusive AI systems.\n \nRead more about the people and innovations who are shaping what's next:",
        "start": 0,
        "duration": 0,
        "timestamp": "00:00"
      }
    ],
    "wordCount": 89,
    "segments": 1,
    "author": {
      "name": "Microsoft",
      "headline": "28,652,029 followers",
      "url": "https://www.linkedin.com/company/microsoft/posts"
    },
    "publishedAt": "2026-07-04 13:19:24"
  }
}

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:

Top-level fields

platformPlatform identifier (e.g. youtube, instagram).
urlCanonical URL of the item.
transcriptComplete text transcript.
wordCountTotal number of words in the transcript.
segmentsTranscript segment count, or sponsor segment list on video-sponsors endpoints.
publishedAtPublish date (ISO 8601).

Transcript segments

Each item in transcriptSegments contains:

textText content.
startStart time in seconds.
durationLength in seconds.
timestampHuman-readable timestamp (MM:SS format).

Author

The author object contains:

nameName of the item or account.
headlineProfile headline.
urlCanonical URL of the item.

Parameters

Name	Type	Required	Description
url	string	Yes	LinkedIn post or activity 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.
cache	boolean	No	Set true to serve from the 24h response cache. Default false — always fetch fresh data.

Authentication: send your key as Authorization: Bearer capt_live_.... A typical call costs 1 credit. Pass cache=true for a free 24h cache hit; default is always fresh.

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

How it works

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

Use cases

Accessibility

Provide captions and transcripts for hearing-impaired users.

Content Analysis

Analyze spoken content for keywords, topics, and sentiment.

Search & Discovery

Make video content searchable by text.

Content Creation

Extract quotes and key phrases from videos.

Language Learning

Provide text alongside audio for language learners.

Research

Analyze large volumes of video content efficiently.

SEO

Extract text content for search engine optimization.

Frequently asked questions

What does the LinkedIn Post Transcript API do?+

The LinkedIn Post Transcript API lets you extract the full, timestamped transcript from a public LinkedIn post using one GET request to /v1/linkedin/post-transcript. It returns clean JSON — no OAuth or infrastructure setup required.

How many credits does the LinkedIn Post Transcript API cost?+

Each successful call costs 1 credit. 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 LinkedIn 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.

What if the LinkedIn post has no captions?+

When no captions are available, Captapi transcribes the audio with AI (Whisper) automatically, so you still get a usable transcript.

Is the LinkedIn Post Transcript 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.

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LinkedIn Post Transcript API

What is the LinkedIn Post Transcript API?

What you get

Try it

Parameters

Example response

Response structure

Top-level fields

Transcript segments

Author

Parameters

How it works

Use cases

Accessibility

Content Analysis

Search & Discovery

Content Creation

Language Learning

Research

SEO

Frequently asked questions

More LinkedIn APIs

Ready to use the LinkedIn Post Transcript API?