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Particle Pro Word-Level Transcript
x402
Particle Pro Word-Level Transcript is a paid API for AI agents from api.particle.pro, paid per call via x402, $0.03/call, status unknown (last checked 2026-09-13).
Returns the word-level timestamped transcript for a podcast episode, with optional time-range filtering and pagination.
Price / call$0.03
Success—
StatusUnknown
How this service works
Get word-level transcript. Returns the word-level timestamped transcript for a podcast episode.
Output
A paginated list of word tokens, each with its text content and precise timestamp data (start/end time). Spacing tokens (whitespace between words) are included by default for caption rendering but can be excluded via exclude_spacing=true to roughly halve payload size for NLP or LLM use. A cursor is returned for paginating through long transcripts.
Example use cases
Caption rendering for podcast player
“Get me the full word-level transcript with spacing tokens for episode 'founders-talk-ep-91' so I can render synced captions in the podcast player — I need the inter-word timing for karaoke-style highlighting.”
Searchable word index for podcast archive
“Fetch all word tokens (no spacing) from episode 'crime-wave-weekly-ep-14' on Particle Pro so I can index them for full-text search — exclude spacing tokens to keep the payload lean.”
Quote extraction from a known segment
“Get me the word-level transcript for episode 'market-pulse-ep-200' between 12 minutes (720 seconds) and 18 minutes (1080 seconds) — I want to pull an exact quote from that segment.”
Technical details
Endpoint
GEThttps://api.particle.pro/v1/podcasts/episodes/:id/transcript/wordsWhen to prefer
Choose this endpoint when you need precise word-level timing data for a podcast episode — for tasks like caption generation, karaoke-style highlighting, quote extraction from a specific time range, or building an NLP/LLM-ready word corpus. It is preferable over a sentence- or paragraph-level transcript endpoint when exact per-word timestamps are required.
Side effects
- Episode ID not found — 404 with no transcript returned
- Episode has no transcript available — empty result or 404
- Invalid cursor causing pagination error — 400 bad request
- Start/end time out of range — empty word list returned
- Rate limiting or payment failure — 402 or 429 response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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