# Services from api.particle.pro on Zero

> api.particle.pro serves 111 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/api.particle.pro
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/api.particle.pro/health.json

## Services

- [Particle Pro Podcast Episode Content Search](https://www.zero.xyz/c/particle-pro-podcast-episode-content-search-4caff5d8/llms.txt): $0.03/call via x402. Full-text search of podcast episode transcript segments, with filtering by entity, role, segment type, date range, and language.
- [Particle Pro: List Related Podcasts](https://www.zero.xyz/c/particle-pro-list-related-podcasts-53e8fe62/llms.txt): $0.03/call via x402. Returns the most related podcasts to a given podcast, ranked by calibrated relevance score with band labels and optional content-similarity signals.
- [Particle Pro Podcast Bias Analysis](https://www.zero.xyz/c/particle-pro-podcast-bias-analysis-5c359d89/llms.txt): $0.03/call via x402. Returns the most recent automated political bias analysis for a podcast, including reasoning, transcript evidence, web research, and sample episodes.
- [Particle Pro – List Podcast Sponsor Recommendations](https://www.zero.xyz/c/particle-pro-list-podcast-sponsor-recommendations-98838c8a/llms.txt): $0.03/call via x402. 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.
- [Particle Pro – List Bill Actions](https://www.zero.xyz/c/particle-pro-list-bill-actions-f9cabc6f/llms.txt): $0.01/call via x402. Returns a paginated, chronologically ordered list of legislative actions taken on a specific bill in the US Congress.
- [Particle Pro Prediction Market Events Search](https://www.zero.xyz/c/particle-pro-prediction-market-events-search-37ea1c15/llms.txt): $0.03/call via x402. Searches prediction market events across Polymarket and Kalshi using hybrid semantic and keyword search.
- [Particle Pro: List Prediction Market Events](https://www.zero.xyz/c/particle-pro-list-prediction-market-events-60cc7a14/llms.txt): $0.02/call via x402. Returns a paginated list of prediction market events from Polymarket and Kalshi, filterable by source, status, category, entity, company, or ticker.
- [Particle Pro Podcast Brand Suitability Assessment](https://www.zero.xyz/c/particle-pro-podcast-brand-suitability-assessment-ba86a505/llms.txt): $0.04/call via x402. Returns the most recent IAB Tech Lab Content Taxonomy 3.x brand suitability assessment for a specific podcast, indicating which brand safety categories it falls into.
- [Particle Pro – List Podcast Episodes](https://www.zero.xyz/c/particle-pro-list-podcast-episodes-4b217542/llms.txt): $0.01/call via x402. Returns a paginated list of podcast episodes across all podcasts, filterable by person, company, entity, podcast, language, duration, and date.
- [Particle Pro Podcast Rankings Movers](https://www.zero.xyz/c/particle-pro-podcast-rankings-movers-f87b003d/llms.txt): $0.04/call via x402. Returns podcast chart entries whose rank changed between the current snapshot and a comparison snapshot N days ago, filterable by platform, country, category, and change type.
- [Particle Pro Guest Brand-Suitability Profile](https://www.zero.xyz/c/particle-pro-guest-brand-suitability-profile-94639946/llms.txt): $0.04/call via x402. Returns the distribution of IAB Tech Lab brand-suitability tiers and most-flagged content categories across all podcasts a guest has appeared on.
- [Particle Pro: Podcast Publisher Brand-Suitability Leaderboard](https://www.zero.xyz/c/particle-pro-podcast-publisher-brand-suitability-leaderboard-9e685647/llms.txt): $0.04/call via x402. Returns a paginated, ranked leaderboard of podcast publishers ordered by IAB/GARM brand-suitability composition metrics.
- [Particle Pro: Get Podcast Chart Slot History](https://www.zero.xyz/c/particle-pro-get-podcast-chart-slot-history-88d429b2/llms.txt): $0.04/call via x402. Returns paginated historical chart snapshots for a podcast chart slot, ordered most-recent first, filterable by source platform, country, chart type, category, and podcast.
- [Particle Pro – List Publisher Podcasts with Suitability Verdicts](https://www.zero.xyz/c/particle-pro-list-publisher-podcasts-with-suitability-verdicts-61fc396f/llms.txt): $0.03/call via x402. Returns a paginated list of a podcast publisher's analyzed podcasts decorated with IAB/GARM tier, confidence score, evaluation timestamp, and flagged category exposures.
- [Particle Pro Entity Search](https://www.zero.xyz/c/particle-pro-entity-search-a080abc4/llms.txt): $0.01/call via x402. Search for people, companies, or knowledge graph entities by free-text query including names, tickers, handles, or domains
- [Particle Pro: Get Publisher Political Bias Profile](https://www.zero.xyz/c/particle-pro-get-publisher-political-bias-profile-6eb68616/llms.txt): $0.03/call via x402. Returns rolled-up political bias intelligence for a podcast publisher, including coverage stats, political share, average lean score (-3 to +3), and lean diversity across all analyzed podcasts.
- [Particle Pro – Get Clip Transcript](https://www.zero.xyz/c/particle-pro-get-clip-transcript-9e1c14a2/llms.txt): $0.03/call via x402. Returns the diarized (speaker-separated) transcript for a specific podcast clip in dialogue, plain text, or SRT format.
- [Particle Pro – List Company People](https://www.zero.xyz/c/particle-pro-list-company-people-cb76f05e/llms.txt): $0.03/call via x402. Returns a paginated list of people (executives and other roles) associated with a company, filterable by role class and title substring, with current roles shown first.
- [Particle Pro Company Podcast Advertising Profile](https://www.zero.xyz/c/particle-pro-company-podcast-advertising-profile-a079f9bc/llms.txt): $0.03/call via x402. Returns advertising intelligence for a specific company across the podcast ecosystem, including reach metrics and recent ad placements.
- [Particle Pro – List Sponsors for a Publisher](https://www.zero.xyz/c/particle-pro-list-sponsors-for-a-publisher-275db65d/llms.txt): $0.04/call via x402. Returns a paginated list of advertisers/sponsors currently active across a podcast publisher's catalog, with filtering and sorting options.
- [Particle Pro Publisher Advertising Profile](https://www.zero.xyz/c/particle-pro-publisher-advertising-profile-526f3dbf/llms.txt): $0.03/call via x402. Returns aggregated podcast advertising intelligence for a publisher, including total ads, unique sponsors, episode reach, host-read vs pre-recorded mix, top sponsors, and network count.
- [Particle Pro: List Trending Podcast Guests](https://www.zero.xyz/c/particle-pro-list-trending-podcast-guests-07cd50cd/llms.txt): $0.04/call via x402. Returns a ranked list of podcast guests currently making the rounds across multiple shows, signaling book launches, product unveils, news-cycle moments, or emerging personalities.
- [Particle Pro Entity List](https://www.zero.xyz/c/particle-pro-entity-list-18daccb3/llms.txt): $0.01/call via x402. Lists and filters knowledge graph entities (people, organizations, places) extracted across all podcast content, with support for bulk lookup and per-podcast filtering.
- [Particle Pro – Get Person](https://www.zero.xyz/c/particle-pro-get-person-1f0151eb/llms.txt): $0.01/call via x402. Retrieves a comprehensive Person profile including display name, slug, headshot, curated bio, company-role history, third-party profile links, and optional knowledge-graph cross-reference
- [Particle Pro: List Publisher Podcasts by Ad Volume](https://www.zero.xyz/c/particle-pro-list-publisher-podcasts-by-ad-volume-ab4c0244/llms.txt): $0.03/call via x402. Returns a paginated list of a podcast publisher's shows ranked by total advertisement count, descending.
- [Particle Pro – Get Podcast Format Profile](https://www.zero.xyz/c/particle-pro-get-podcast-format-profile-232a5248/llms.txt): $0.03/call via x402. Returns the full production format breakdown for a podcast, including guest frequency, detected formats (interview, panel, call_in, solo_narrated), advertiser presence, video presence, and episode length distribution.
- [Particle Pro – List Podcast Ratings](https://www.zero.xyz/c/particle-pro-list-podcast-ratings-e34f4e40/llms.txt): $0.01/call via x402. Returns paginated user-generated star ratings (1–5) and optional review text for a specified podcast, aggregated from third-party platforms like Apple Podcasts.
- [Particle Pro Podcast Guest Recommendations](https://www.zero.xyz/c/particle-pro-podcast-guest-recommendations-1967e0ad/llms.txt): $0.03/call via x402. Returns a ranked list of podcasts a guest has NOT appeared on, ordered by relevance to shows they HAVE appeared on — their pitch list.
- [Particle Pro – List Podcasts for a Sponsor](https://www.zero.xyz/c/particle-pro-list-podcasts-for-a-sponsor-f58ea660/llms.txt): $0.03/call via x402. Returns a paginated list of podcasts where a given sponsor advertises, ordered by the number of episodes featuring that sponsor.
- [Particle Pro: List Trending Podcast Sponsors](https://www.zero.xyz/c/particle-pro-list-trending-podcast-sponsors-ad4f8ae8/llms.txt): $0.04/call via x402. Returns advertisers whose podcast ad volume is accelerating, ranked by growth in ad placements over a configurable trailing time window.
- [Particle Pro – List Guest Podcast Appearances](https://www.zero.xyz/c/particle-pro-list-guest-podcast-appearances-ebc7557e/llms.txt): $0.03/call via x402. Returns a chronological, most-recent-first list of podcast episodes a specific guest has appeared on, with optional filtering by topic, podcast, date range, speaking time, and brand-safety tier.
- [Particle Pro – List Ads in Episode](https://www.zero.xyz/c/particle-pro-list-ads-in-episode-bebe185b/llms.txt): $0.03/call via x402. Returns all advertising spots detected in a specific podcast episode, including sponsor, linked company, product/offer, read type, and placement
- [Particle Pro – List Episode Clips](https://www.zero.xyz/c/particle-pro-list-episode-clips-4e3ea401/llms.txt): $0.01/call via x402. Returns AI-extracted highlight clips for a specific podcast episode, sorted by engagement score
- [Particle Pro – List Speakers in Episode](https://www.zero.xyz/c/particle-pro-list-speakers-in-episode-2ea801e8/llms.txt): $0.03/call via x402. Returns the identified speakers in a specific podcast episode, including their roles and speaking durations.
- [Particle Pro – Get Entity Mentions in Episode Transcript](https://www.zero.xyz/c/particle-pro-get-entity-mentions-in-episode-transcript-e46c7ea2/llms.txt): $0.03/call via x402. Finds all mentions of a specific entity within a podcast episode's transcript and returns each mention with surrounding dialogue context windows.
- [Particle Pro Word-Level Transcript](https://www.zero.xyz/c/particle-pro-word-level-transcript-e1f94898/llms.txt): $0.03/call via x402. Returns the word-level timestamped transcript for a podcast episode, with optional time-range filtering and pagination.
- [Particle Pro: List Podcast Guests](https://www.zero.xyz/c/particle-pro-list-podcast-guests-23a1d327/llms.txt): $0.03/call via x402. Returns a paginated directory of persons who have appeared as guests (non-host) on podcast episodes, filterable by name, podcast, topic, date, and brand-safety tier.
- [Particle Pro: List Podcasts a Guest Has Appeared On](https://www.zero.xyz/c/particle-pro-list-podcasts-a-guest-has-appeared-on-2bbbc0f8/llms.txt): $0.04/call via x402. Returns the distinct podcasts a guest has appeared on, with per-podcast appearance counts, first/last appearance dates, and brand-safety and bias attributes.
- [Particle Pro Podcast Lookup by External Platform ID](https://www.zero.xyz/c/particle-pro-podcast-lookup-by-external-platform-id-22b934aa/llms.txt): $0.01/call via x402. Resolves external platform identifiers (Apple Podcasts, Spotify, YouTube, RSS) to Particle podcast records
- [Particle Pro Podcast Guest Profile](https://www.zero.xyz/c/particle-pro-podcast-guest-profile-46c065ff/llms.txt): $0.03/call via x402. Returns a lifetime podcast guest profile including identity, total appearances, distinct shows, role mix, and most-frequent podcasts for a given person.
- [Particle Pro: Get Publisher Brand Suitability Profile](https://www.zero.xyz/c/particle-pro-get-publisher-brand-suitability-profile-b42a44ff/llms.txt): $0.04/call via x402. Returns a rollup of IAB Tech Lab Brand Safety & Suitability Framework verdicts for a podcast publisher, showing tier composition (SAFE / LIMITED / SENSITIVE / UNSAFE) across their catalog.
- [Particle Pro Podcast Rankings](https://www.zero.xyz/c/particle-pro-podcast-rankings-0813c92d/llms.txt): $0.03/call via x402. Returns a live snapshot of podcast chart rankings from Apple or Spotify, filterable by country, category, rank range, and specific podcast.
- [Particle Pro: Get Episode Transcript](https://www.zero.xyz/c/particle-pro-get-episode-transcript-e1eca91e/llms.txt): $0.03/call via x402. Returns the diarized (speaker-attributed) transcript for a specific podcast episode, with optional time-range clipping, format selection, and speaker filtering.
- [Particle Pro – List Related Episodes](https://www.zero.xyz/c/particle-pro-list-related-episodes-0e12cdfb/llms.txt): $0.03/call via x402. Returns episodes from other podcasts that cover the same story or subject as a given episode, ranked by content similarity, shared entities, shared topics, and shared news stories.
- [Particle Pro – List Podcast Clips](https://www.zero.xyz/c/particle-pro-list-podcast-clips-fcef14dc/llms.txt): $0.03/call via x402. Returns AI-extracted highlight clips from podcast episodes, filterable by type, speaker, podcast, and engagement score, ranked by engagement potential.
- [Particle Pro Episode Lookup](https://www.zero.xyz/c/particle-pro-episode-lookup-64be5c10/llms.txt): $0.01/call via x402. Resolves one or more external episode identifiers (Apple Podcasts, YouTube, RSS GUID, PodcastIndex, Megaphone, Omny, Acast, Art19) to Particle Pro podcast episodes
- [Particle Pro – List Analyzed Podcasts for Publisher](https://www.zero.xyz/c/particle-pro-list-analyzed-podcasts-for-publisher-cbc7577b/llms.txt): $0.03/call via x402. Returns a paginated list of a podcast publisher's shows with their latest political bias analysis attached, supporting filtering by bias bucket, political context, and sort order.
- [Particle Pro – Podcast Ratings Summary](https://www.zero.xyz/c/particle-pro-podcast-ratings-summary-a7517a5f/llms.txt): $0.03/call via x402. Returns aggregated numeric ratings and an LLM-generated narrative summary for a podcast, broken down by platform and locale plus a combined cross-source roll-up
- [Particle Pro: List Companies](https://www.zero.xyz/c/particle-pro-list-companies-fe3d051c/llms.txt): $0.01/call via x402. Returns a paginated, filterable list of companies with support for search by name, domain, ticker, CIK, Wikidata QID, or bulk slug/ID lookup.
- [Particle Pro: Publisher Political Bias Leaderboard](https://www.zero.xyz/c/particle-pro-publisher-political-bias-leaderboard-f2c5064d/llms.txt): $0.04/call via x402. Returns a paginated leaderboard ranking podcast publishers by a chosen political bias met

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