Discover / api.particle.pro
Particle Pro
■ Challenge detectedSearch entities. Find a person, company, or knowledge graph entity by free-text query — a name, partial name, nickname, stock ticker, @handle, or website domain.
- Listed price
- $0.01
- Challenge detected
- 10 of the last 10 checks
- Median response
- 133 ms
- Last checked
- 17 Oct, 09:26 UTC
- In our index since
- 26 Sept 2026
Endpoint
curl -i https://api.particle.pro/v1/entities/search # 402 Payment Required: pay with an x402 client (USDC on Base), # then send the same request again with the payment attached.
19 listed endpoints · on x402 Bazaar
Checks and payment terms on this page refer to the endpoint above. Other listed endpoints have not been checked individually.
Base URLhttps:
- GET/podcasts
/guests /:id /appearances$0.03List appearances for a podcast guest. Returns the chronological list of episodes a guest has appeared on, most recent first. - GET/podcasts
/mentions$0.04Search podcast dialogue for entity mentions. Returns every line of dialogue that mentions a person or company, grouped by episode and ordered by recency. - GET/podcasts
/advertising /leaderboard /preview$0.01Get advertising leaderboard preview. Returns the top 10 advertising sponsors of the trailing 7 days ranked by the chosen metric, each with its rank movement versus the equivalent 7-day window ending 30 days ago. - GET/podcasts
/:id /episodes$0.03List episodes for a podcast. Returns a paginated list of episodes for a specific podcast, identified by slug (e.g., 'all-in') or ID. - GET/podcasts
/episodes$0.01List episodes. Returns a paginated list of podcast episodes across all podcasts. - GET/podcasts
/guests$0.03List podcast guests. Returns a paginated directory of Persons who have appeared on at least one podcast episode in a non-host listing role. - GET/podcasts
/rankings /countries$0.01List ranking countries. Returns every country currently represented in the rankings dataset, optionally restricted to a single source. - GET/podcasts
/episodes /search$0.03Search podcast episode content. To find podcasts (shows) by name or topic, use /v1/podcasts/search?q=…. - GET/podcasts
/search$0.01Search podcasts. Searches the podcast catalog by show name — the canonical podcast search. - GET/topics$0.01List topics. Returns the hierarchical topic taxonomy.
- GET/podcasts
/rankings /categories$0.01List ranking categories. Returns every category currently represented in the rankings dataset, optionally restricted to a single source. - GET/podcasts
/rankings /sources$0.01List ranking sources. Returns each (source, chart_type) pair available on this API together with row counts and freshness for the live snapshot. - GET/companies$0.01List companies. Returns a paginated list of companies.
- GET/podcasts$0.01List and search podcasts. Returns a paginated list of podcasts, with filters for topic, language, suitability tier, popularity, and format.
- GET/entities
/search$0.01Search entities. Find a person, company, or knowledge graph entity by free-text query — a name, partial name, nickname, stock ticker, @handle, or website domain. - GET/podcasts
/bias /publishers /leaderboard$0.04Rank publishers by political bias metric. Returns a paginated leaderboard ranking publishers by a chosen bias metric: most_left_leaning, most_right_leaning, most_political, most_diverse, most_monolithic, or most_analyzed. min_analyzed_podcasts - GET/entities$0.01List entities. List knowledge graph entities (people, organizations, places) across all podcast content.
- GET/podcasts
/lookup$0.01Look up podcasts by external platform identifier. Resolves one or more external platform identifiers (Apple Podcasts collection IDs, Spotify show IDs, YouTube channel IDs, …) — or RSS feed URLs via platform=rss — to Particle podcasts. - GET/entities
/types$0.01List entity types. Returns the entity categories supported as values for the type query parameter on /v1/entities and the entity_type query parameter on /v1/podcasts/episodes/search.
A dash means the listing gives no price or method. Copy buttons copy the full URL.
Showing 19 of 19 listed endpoints.
Agents can find it through the Superstables MCP server and JSON API: GET /api/v1/services/api.particle.pro
Recent checks
29 Sept 2026One bar per check, showing up to 20 recent checks. Coloured bars show relative response time, with a minimum visible height; full-height grey bars mean no challenge was detected. “Challenge detected” means HTTP 402 or another detected payment-challenge signal.17 Oct 2026
All 10 checks
| When (UTC) | Result | HTTP | Response |
|---|---|---|---|
| 17 Oct, 09:26 UTC | Challenge detected | 402 | 294ms |
| 16 Oct, 11:31 UTC | Challenge detected | 402 | 178ms |
| 14 Oct, 23:56 UTC | Challenge detected | 402 | 102ms |
| 13 Oct, 20:45 UTC | Challenge detected | 402 | 181ms |
| 11 Oct, 19:34 UTC | Challenge detected | 402 | 96ms |
| 10 Oct, 03:32 UTC | Challenge detected | 402 | 175ms |
| 8 Oct, 21:32 UTC | Challenge detected | 402 | 114ms |
| 7 Oct, 15:42 UTC | Challenge detected | 402 | 151ms |
| 6 Oct, 15:31 UTC | Challenge detected | 402 | 85ms |
| 29 Sept, 17:03 UTC | Challenge detected | 402 | 96ms |
Questions
Did our last probe detect a payment challenge?
At our last probe on 17 Oct, 09:26 UTC, it returned HTTP 402 or another detected payment-challenge signal. This check did not test payment, delivery or compatibility with the Superstables client.
What price is recorded for Particle Pro?
Its listed price is $0.01.
What payment terms does Particle Pro advertise?
The listing advertises x402, Base and USDC. It names cdp as its facilitator. Check the seller's current payment challenge and authentication requirements before paying.
Where is Particle Pro listed?
In x402 Bazaar and x402-list.com. Superstables first indexed it on 26 Sept 2026.
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