# Particle Pro – List Episode Segments

> Particle Pro – List Episode Segments is a paid API for AI agents from api.particle.pro, paid per call via x402, $0.03/call, status unknown (last checked 2026-09-14).

Returns the AI-identified topic segments for a specific podcast episode, listed in chronological order.

## Facts

- Endpoint: GET https://api.particle.pro/v1/podcasts/episodes/:id/segments
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/particle-pro-list-episode-segments-0472c3cb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_XZw7_LguRc8h8-D4tY6fW

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability particle-pro-list-episode-segments-0472c3cb
```

Example prompt: What are the AI-identified segments for the Particle Pro episode with slug 'tech-weekly-42'? Give me all of them in order.

## When to prefer this

Use this endpoint when you need a structured, AI-generated topic breakdown of a specific podcast episode from the Particle Pro platform. It is the right choice when you already have an episode ID or slug and want to enumerate its segments in order — for building chapter navigation, auditing content structure, or analyzing topic coverage. Prefer this over podcast-level or publisher-level endpoints when you need granular, intra-episode segmentation rather than show-level metadata.

## Known failure modes

- Episode ID or slug not found — 404 error
- Invalid pagination cursor — 400 or empty results
- No segments available for the episode (recently ingested or unprocessed)
- Rate limiting or payment failure via x402 protocol — 402 error
- Malformed episode ID format — 400 validation error

## How this service works

List segments for an episode. Returns the AI-identified segments for a specific episode in chronological order.

## Output

A chronologically ordered list of AI-identified segments for the specified episode, each containing segment metadata such as topic label, start/end timestamps, and potentially confidence scores. Includes pagination cursor if results are paginated via the limit and cursor parameters.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "pathParams": {
     "type": "object",
     "required": [
      "id"
     ],
     "properties": {
      "id": {
       "type": "string",
       "description": "Episode slug or ID"
      }
     }
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "limit": {
       "type": "integer",
       "format": "int64",
       "description": "Results per page (default: all)"
      },
      "cursor": {
       "type": "string",
       "description": "Opaque pagination cursor from previous response"
      }
     }
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/particle-pro-list-episode-segments-0472c3cb/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.particle.pro](https://www.zero.xyz/host/api.particle.pro/llms.txt)