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Tool detail

Particle Pro

Returns a paginated directory of podcast guests (non-host appearances), filterable by podcast, topic, name and brand-safety tier.

Categories: Entertainment

Use when

  • find people who have guested on podcasts about a topic
  • search podcast guests by name
  • list frequent guests on a specific show

Not for

  • not hosts - non-host guest appearances only
  • not episode-level detail - the provider has a separate episodes endpoint for that

Inputs

GET query params (all optional): q, podcast_id, topic_id, appeared_since, min_appearances, sort, suitability_tier_max, limit, cursor

Admitted input schema

{
  "type": "object",
  "properties": {
    "appeared_since": {
      "type": "string",
      "minLength": 0,
      "maxLength": 4096,
      "description": "Only include guests with at least one appearance published on or after this ISO 8601 date"
    },
    "cursor": {
      "type": "string",
      "minLength": 0,
      "maxLength": 4096,
      "description": "Opaque pagination cursor from previous response"
    },
    "limit": {
      "type": "integer",
      "minimum": -9007199254740991,
      "maximum": 9007199254740991,
      "description": "Results per page"
    },
    "min_appearances": {
      "type": "integer",
      "minimum": -9007199254740991,
      "maximum": 9007199254740991,
      "description": "Minimum lifetime appearance count to include (default 1)"
    },
    "podcast_id": {
      "type": "string",
      "minLength": 0,
      "maxLength": 4096,
      "description": "Restrict to guests who have appeared on this podcast (slug or ID)"
    },
    "q": {
      "type": "string",
      "minLength": 0,
      "maxLength": 4096,
      "description": "Case-insensitive substring match against the guest's display name"
    },
    "sort": {
      "type": "string",
      "minLength": 0,
      "maxLength": 4096,
      "enum": [
        "appearances",
        "recency"
      ],
      "description": "Sort order (default: appearances)"
    },
    "suitability_tier_max": {
      "type": "string",
      "minLength": 0,
      "maxLength": 4096,
      "enum": [
        "SAFE",
        "LIMITED",
        "SENSITIVE",
        "UNSAFE"
      ],
      "description": "Restrict to guests whose appearances are on podcasts at or below this IAB Tech Lab brand-safety tier"
    },
    "topic_id": {
      "type": "string",
      "minLength": 0,
      "maxLength": 4096,
      "description": "Restrict to guests with at least one appearance on an episode classified under this topic"
    }
  },
  "required": [],
  "additionalProperties": false
}

Endpoint

Method
GET
URL
https://api.particle.pro/v1/podcasts/guests

Payment

Protocol
x402
Listed price
0.03 USDC per call on Base
Payment method
exact
Network
eip155:8453
Asset
0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Listed terms are catalog metadata. The caller supplies inputs and calls the tool outside Onelayer. If payment is required, the caller uses a compatible wallet to pay.

Source

Record
GET https://api.particle.pro/v1/podcasts/guests
Retrieved
2026-09-30T20:37:07.382Z
Catalog file SHA-256
6837ccddf886f0007cf3727ea9d27faaa5047b51b4f425345c554ce1c271a524
Catalog built
2026-09-30T22:31:58.034Z