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Particle Pro – List Podcast Sponsor Recommendations
x402
Particle Pro – List Podcast Sponsor Recommendations 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 a ranked list of advertisers that buy on shows related to a given podcast but haven't yet sponsored it — a ready-made prospecting list for podcast ad sales.
Price / call$0.03
Success—
StatusUnknown
How this service works
List sponsors a podcast could pitch. Returns advertisers that run on the podcast's related shows but not on this one, ranked by how related those venues are, how much the sponsor buys there, and how recently — a prospecting list for a show
Output
A paginated, scored list of advertiser companies that appear on shows related to the target podcast but not on the podcast itself. Each entry includes a relevance score, a strength band, and optionally: the peer shows that carry the sponsor (via), and up to three decision-maker contacts per sponsor with role class and LinkedIn URL (contacts). Results are sorted by a composite of show relatedness, advertiser spend volume, and recency of most recent ad.
Example use cases
Cold-pitch list for new podcast
“My show is 'Lex Fridman Podcast' — can you find me 20 advertisers that are buying on similar shows but haven't sponsored mine yet, only ones that placed an ad in the last 90 days, and include contact info for whoever owns sponsorship decisions at each company?”
Filter out programmatic noise
“Get me sponsor recommendations for the 'Huberman Lab' podcast but drop the top 100 biggest programmatic advertisers from the list — I want the targeted, brand-appropriate prospects, not the ones every show already knows about.”
Vetting a potential sponsor's activity
“For the 'My First Million' podcast, show me which advertisers score above 0.7 that have been active since January 2024, and include which related shows are actually running their ads so I can reference those in my pitch.”
Technical details
Endpoint
GEThttps://api.particle.pro/v1/podcasts/:id/recommendations/sponsorsWhen to prefer
Use this endpoint when you need an actionable, ranked sponsor prospecting list for a specific podcast — particularly when you want to surface advertisers already proven to buy in the podcast's niche (evidenced by spend on related shows) rather than cold-guessing from broad ad market data. Prefer it over generic advertiser databases when recency filtering ('still buying') and contact enrichment in a single call matter. It is especially strong for long-tail shows where the related-show peer set meaningfully constrains the prospect universe.
Side effects
- Podcast ID or slug not found — 404 with unknown podcast identifier
- Invalid active_since date format — 400 bad request
- cursor token expired or malformed — 400 or 422 pagination error
- No recommendations returned if the podcast has no sufficiently related shows in the corpus
- min_score too high — empty results list with valid 200 response
- Rate limit exceeded — 429 too many requests
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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