Twitter/X Transcript API
Tweet text as a transcript — timingSource none (not Whisper). Flat 1 credit.
GET request to /v1/twitter/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 Twitter/X Transcript API?
Paste a public tweet URL and get the tweet body as structured text. timingSource is always "none" today — syndication text only, not Whisper/captions. When timingSource is "none", segment start/duration/timestamp are omitted (returned only when timingSource is "captions"). Paragraph-split transcriptSegments include index, wordCount, charStart/charEnd; estimatedReadSeconds is a top-level 200 wpm estimate — never inside duration. Flat 1 credit.
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
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
curl "https://api.captapi.com/v1/twitter/transcript?url=https%3A%2F%2Fx.com%2FNASASpox%2Fstatus%2F2078226501024227542" \
-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": "twitter",
"url": "https://x.com/NASASpox/status/2078226501024227542",
"tweetId": "2078224758781751775",
"transcript": "Full steam ahead this week at @NASA 🚀\n\n🧑🚀 @Astro_Anil arrives at the ISS\n🪐 Dragonfly progress\n✈️ Future of autonomous flight\n🤝 70 Artemis Accords signatories\n\nHere's your NASA Minute! https://t.co/GAZ4sUqfbZ",
"transcriptSegments": [
{
"text": "Full steam ahead this week at @NASA 🚀",
"index": 0,
"wordCount": 7,
"charStart": 0,
"charEnd": 37
},
{
"text": "🧑🚀 @Astro_Anil arrives at the ISS\n🪐 Dragonfly progress\n✈️ Future of autonomous flight\n🤝 70 Artemis Accords signatories",
"index": 1,
"wordCount": 15,
"charStart": 39,
"charEnd": 158
},
{
"text": "Here's your NASA Minute! https://t.co/GAZ4sUqfbZ",
"index": 2,
"wordCount": 5,
"charStart": 160,
"charEnd": 208
}
],
"wordCount": 27,
"segments": 3,
"author": {
"username": "NASASpox",
"displayName": "Bethany Stevens",
"url": "https://x.com/NASASpox",
"verified": false,
"profileImage": "https://pbs.twimg.com/profile_images/2030158374625759233/3fWyLDjS_normal.jpg"
},
"publishedAt": "2026-07-17T21:06:08.000Z",
"timingSource": "none",
"estimatedReadSeconds": 8
}
}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 for this response (matches the endpoint's platform).urlCanonical URL of the item.tweetIdTweet id. Example: "2078224758781751775".transcriptComplete text transcript (file-upload endpoints). Timed caption/ASR endpoints use text instead.wordCountWord count (emoji-only tokens count as 0; URLs count as 1).segmentsTimed caption/ASR: array of {text,startMs,endMs}. File-upload video-transcript: segment count. Sponsor endpoints: sponsor segment list.publishedAtPublish date (ISO 8601) when the platform exposes an absolute timestamp.timingSourceAlways "none" today. "captions" is reserved — do not branch on it; nothing emits it yet.estimatedReadSecondsWhole-transcript reading-time estimate at 200 wpm. Not per-segment duration.
Transcript segments
Each item in transcriptSegments contains:
textText content.index0-based segment order.wordCountWord count (emoji-only tokens count as 0; URLs count as 1).charStartStart offset into transcript (transcript.slice(charStart, charEnd) === text).charEndEnd offset into transcript (exclusive).
Author
The author object contains:
usernameAccount username / handle.displayNameDisplay name of the account. Canonical across profile endpoints (prefer over name).urlCanonical URL of the item.verifiedWhether the account is verified on this platform.profileImageProfile image URL. Deprecated alias of avatar on Instagram/Twitter/Threads/TikTok profile endpoints (one release).
Parameters
| Name | Type | Required | Description |
|---|---|---|---|
| url | string | Yes | Public tweet URL, e.g. https://x.com/user/status/ID. 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 (0 credits on hit). Default false — always fetch fresh. Envelope includes cached + cachedAt on hits. |
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.
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/twitter/transcriptand 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 Twitter/X Transcript API do?+
The Twitter/X Transcript API lets you extract the full, timestamped transcript from a public Twitter / X video using one GET request to /v1/twitter/transcript. It returns clean JSON — no OAuth or infrastructure setup required.
How many credits does the Twitter/X Transcript API cost?+
Each successful call costs 1 credit. Pass cache=true to serve from the 24h cache (0 credits on hit); default is always fresh. Hits include cached + cachedAt. Selected profile endpoints also accept cacheMaxAge=1d|3d|7d|14d|30d. Failed or empty results are never charged.
Do I need a Twitter / X 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 Twitter/X 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 cache (0 credits on hit); default is always fresh. Hits include cached + cachedAt. Selected profile endpoints also accept cacheMaxAge=1d|3d|7d|14d|30d. Use it for analytics, monitoring, and content automation.
More Twitter / X APIs
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