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Browse podcast guests across the catalog, in two opinionated modes:
  • directory (default): the guest directory ranked by lifetime appearances (guests with 2+ appearances).
  • trends: who’s making the rounds right now — guests with appearances on 2+ distinct podcasts in the last 30 days, which surfaces cross-show press tours rather than show regulars. The press-tour shape is enforced by several baked filters: every in-window appearance must be on a different podcast (no stacking repeats on one show), each appearance needs 5+ minutes of identified speaking time, mononymous catch-all people are excluded, and the in-window rate must be at least a 2× spike over the guest’s lifetime baseline. A guest matching the headline criteria but failing any of these will not appear.
topic_slug narrows either mode to guests appearing on episodes about that topic. Guest identifiers are person handles — usually the canonical person slug, falling back to the encoded person ID when a slug hasn’t been backfilled yet (both forms are accepted everywhere a person is taken). Feed them into particle_podcast_get_guest for the appearance profile or particle_person_get for the person profile.
This surface is deliberately minimal — only a topic filter and pagination. The directory uses lifetime appearance counts (floor of 2 appearances); trends uses a 30-day window with a 2+ distinct-podcast bar. The full filter surface lives on the REST API.

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Inputs

FieldTypeRequiredDefaultDescription
modestringnodirectoryWhat to return: directory (lifetime appearances) or trends (last-30-day cross-show press tours).
topic_slugstringno—Restrict to guests with appearances on episodes classified under this topic (slug from particle_topic_browse, e.g. "technology/artificial-intelligence").
limitinteger (1–50)no20Guests per page.
cursorstringno—Opaque pagination cursor.

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Output

A markdown document with ## Podcast guests — <mode> (N) and a flat bullet list — one bullet per guest, formatted **Name** (slug) — <stats>. In directory mode <stats> is N appearances across M podcasts, last YYYY-MM-DD; in trends mode it is N podcasts in the last 30 days, M lifetime appearances, last YYYY-MM-DD. The parenthesized identifier is the canonical person slug when one has been backfilled, otherwise the encoded person ID — both forms are accepted everywhere a person is taken (guest_slug, person_slug, particle_person_get). When more pages exist, a horizontal rule and a **Cursor:** <value> line are appended. Sample (mode=trends, limit=3): 
## Podcast guests — trends (3)

- **Sam Altman** (sam-altman) — 4 podcasts in the last 30 days, 38 lifetime appearances, last 2026-05-28
- **Cathie Wood** (cathie-wood) — 3 podcasts in the last 30 days, 21 lifetime appearances, last 2026-05-26
- **Marc Andreessen** (marc-andreessen) — 2 podcasts in the last 30 days, 15 lifetime appearances, last 2026-05-22

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Example

Agent calls: particle_podcast_list_guests {
  "mode": "directory",
  "topic_slug": "technology/artificial-intelligence",
  "limit": 25
}