Radar

The podcast
search engine.

The web is searchable. Podcasts should be too.

Search across transcripts from 135,000+ podcasts, fully transcribed and speaker-labeled, with new episodes available within minutes after airing. Try it for free.

Mentions per week

“data centers” · all podcasts

↑ 20× in six months

Radar’s Trends page. Weekly mentions of “data centers” across all podcasts, from 232 in the week of Feb 23 to 4,771 in the week of Aug 17, 2026.

Search what was actually said, in near real time.

Search engines can index an episode title or description, but they rarely understand what was actually said inside the audio. An important idea, company, person, or emerging story can appear across dozens of podcasts without showing up in a traditional search. Radar fixes that.

Entity search

Search by company, person, topic, brand, or product to find the exact moments where it was discussed, across every episode.

Keyword search

Search exact keywords or phrases and land on the moment they were spoken, in a transcript that is segmented and speaker-labeled.

Semantic search

Search by meaning. Ask a question in plain English and find the moments that discuss it, whatever words were used.

Spot trends across the conversation.

A single mention can be interesting, but a sudden increase in mentions across many podcasts can be a signal. Trends measures every entity against its own history of mentions and shows you exactly what changed, when it changed, and why. Read how Trends works.

Measured against its own baseline

Total mentions alone would put inherently popular topics on top every day. By measuring each entity against its own baseline, Radar filters those out and surfaces the niche topic or breakout story with a surge in chatter.

The breaking filter

A story that has been building for a week and a story that broke this morning both chart, while a story that has already peaked falls away. The breaking filter spots the newest.

Category charts

Overall trends plus category charts for TV shows, movies, video games, guest appearances, and more, each with a podcast quote that tells the story and citations back to the exact moments.

See where brands advertise.

Track advertisers and companies across podcasts with Radar's Ad Intelligence. Pull any brand and read its podcast footprint: which shows, how many placements, host-read or pre-recorded, and the ad copy word for word.

Advertiser leaderboard

The brands buying the most podcast advertising, ranked by detected ad reads and by the reach of the shows and episodes that carry them.

Brand footprint

One brand, every placement: the shows it runs on, how often, and how the reads split between host-read and pre-recorded.

Every placement, with the transcript

Search sponsors and see detailed information about each placement, including the transcript of the read itself. Part of the Business plan.

Follow the people that matter to you. Get notified when they appear.

Appearances tracks who went on which show this week, and any person's guest spots, hosting, and panels over time. Radar Alerts monitor an entity mention or guest appearance automatically: choose the person, company, or subject you want to follow, and Radar will notify you when it appears in a newly indexed episode.

Appearances

Every episode a person hosted, guested on, or joined as a panelist, with clips and an appearance trend over time.

Like Google Alerts for podcasts

As-it-happens, or a daily or weekly digest. Each alert surfaces the mention along with the episode it appeared in and transcript context, so you can quickly understand why it matters.

Slack, email, or webhook

Deliver alerts to a Slack channel, an inbox, or a webhook into your own systems.

Everything you need to know about a podcast and its episodes.

Browse the corpus of podcasts and their episodes with hosts and guests, topics, listener ratings and reviews, and segmented, speaker-labeled transcripts. Business plan users also see brand suitability, political bias analysis, chart rankings, audience size estimates, and sponsorship data.

Every episode, transcribed

View the exact moments that matter, with transcripts that are segmented and speaker-labeled, on every episode page.

Hosts, guests, and topics

Who runs the show, who has been on it, and what it covers, resolved to the same entities you can search and follow.

Rankings and audience

Chart positions, listener ratings and reviews, and audience size estimates, alongside the sponsors the show has carried.

If your search engine can't see it, neither can your agent.

Everything in Radar is agent-ready, available via API and MCP through Particle's Podcast Intelligence platform. Sign up for an API key on the Particle Data Platform, or connect your agent to Particle's MCP server.

Common questions.

What is Radar?
Radar is a podcast search engine built on the Particle Podcast Intelligence API. Search what is said inside podcasts: every episode is transcribed and speaker-labeled, and new episodes are available within minutes of airing. Radar makes it easy to explore the corpus of data within the Particle Data Platform.
How is Radar different from searching in a podcast app?
Podcast apps and search engines index an episode title or description, but not what was actually said inside the audio. Radar searches the transcript and links brands, people, and stories, so conversations within podcasts have context beyond just a title or transcript.
How can I search podcast transcripts?
Three ways: Entity search finds every mention of a canonical person, company, or topic. Keyword search finds an exact word or phrase. Semantic search finds moments that match an idea in plain English.
What are Trends?
Trends charts the people, companies, and topics rising fastest across podcasts. Each entity is measured against its own history of mentions, so a breakout story charts while everyday popular topics do not. Category charts cover TV, movies, video games, guests, and more.
Is Radar free?
Radar is free to get started. Search and browse podcasts, and read the top trends and ad reads at radar.particle.pro without an account. Sign up for an Individual, Business or Enterprise account to unlock alerts, deeper data on ads and podcasts, and more.
Can I use Radar's data in my own product?
Yes. Radar is powered by the Particle Podcast Intelligence API, which is also available as a REST API and as an MCP server for agents. Sign up at platform.particle.pro to get started today.

We value your privacy

We use cookies to understand how you use our platform and to improve your experience. Click "Accept All" to consent, or "Decline non-essential" to opt out of non-essential cookies. Read our Privacy Policy.