PredictHQ vs StubHub API for AI agents
PredictHQ is a paid event-intelligence API that returns deduplicated real-world events with impact scores, used mainly for demand forecasting. StubHub API is StubHub's OAuth2 REST API for searching events, buying tickets and listing tickets on the StubHub marketplace.
The short answer
- PredictHQ: Forecasting demand around events with attendance and impact estimates, rather than sending people to buy tickets.
- StubHub API: Approved affiliate and reseller partners who want to search and buy resale tickets from StubHub inside their own product.
Side by side
| PredictHQ | StubHub API | |
|---|---|---|
| Searches | Events in 19 categories, from concerts, sports, festivals and conferences to public holidays, severe weather and airport delays. | Events on the StubHub ticket marketplace (catalog), plus inventory, sales and account data for partners. |
| Returns | Title, category, start date, location (geometry, address), a 0-100 rank, predicted attendance, predicted event spend in USD and linked entities such as the venue. | – |
| Before the first call | A PredictHQ account (sign up for free) and an API token created in the web app. What you can query depends on your subscription. | Access is granted on request: affiliates and buyer-facing apps email StubHub's affiliate team, seller tools email API support; every request needs an OAuth2 token. |
| Free | A free trial with no credit card needed; the trial length is not stated. | – |
| Acting on a result | Nothing: the event schema has no ticket or booking link. | Checkout through the API (purchase tickets for an event), for partners who are given access. |
| Limits on keeping or showing results | Caching, storing or keeping copies of PredictHQ data is prohibited unless you buy the Storage extension or agree otherwise in writing; displaying data requires attribution. | – |
| AI in its terms | Training or fine-tuning any AI tool, including LLMs, on PredictHQ data, or creating embeddings from it, is prohibited without written authorisation in an Order Form. | – |
| Coverage | Global. | – |
| MCP server | Official hosted MCP server at https://mcp.predicthq.com/v1/mcp (OAuth or API key). | – |
Where Openpath fits
Openpath has no event listings yet. Events are on its roadmap, from organizers who list them themselves. Get listed.
Questions people ask
What do I need before I can use PredictHQ?
A PredictHQ account (sign up for free) and an API token created in the web app. What you can query depends on your subscription.
Is PredictHQ free?
A free trial with no credit card needed; the trial length is not stated.
Sources
Every line about another company comes from its own pages. Prices and terms change, so check the source before you rely on one.
PredictHQ, read on October 15, 2026:
- predicthq.com/pricing: “Free Trial - No Credit Card Needed”
- predicthq.com/pricing: “Comprehensive high-quality global coverage of events across 19 different categories”
- docs.predicthq.com/api/events/search-events.md: “A log scale numerical value between 0 and 100 with a five-level hierarchical impact schema.”
- docs.predicthq.com/api/events/search-events.md: “A numerical value that reflects the predicted attendance for supported attendance-based categories.”
- docs.predicthq.com/api/events/search-events.md: “you don't receive an error when requesting a date range or location”
- docs.predicthq.com/getting-started/api-quickstart.md: “Store the token somewhere safe. The WebApp doesn't show it again.”
- docs.predicthq.com: “Structured, deduplicated real-world events for discovery, explainability, and building trust in AI-driven decisions.”
- predicthq.com/legal/terms: “cache, store, download, scrape, or retain a copy of”
- predicthq.com/legal/terms: “whenever Customer displays PredictHQ Data on its website or within its app”
- predicthq.com/legal/terms: “use PredictHQ Data to train or fine tune any AI Tool”
- predicthq.com/legal/terms: “use any AI Tool to create embeddings from PredictHQ Data”
- predicthq.com/legal/terms: “unless explicit prior written authorisation is given by PredictHQ in an Order Form.”
- docs.predicthq.com/ai/mcp.md: “The PredictHQ MCP server connects AI assistants and agent-based systems directly to PredictHQ's APIs.”
- docs.predicthq.com/ai/mcp.md: “https://mcp.predicthq.com/v1/mcp”
StubHub API, read on October 15, 2026:
- developer.stubhub.com/docs/overview/introduction: “search for and view events, purchase tickets for an event or list tickets on the StubHub platform”
- developer.stubhub.com/docs/overview/introduction: “OAuth2 is used for all authentication.”
- developer.stubhub.com/blog: “To get access, please contact one of the email addresses below:”
- developer.stubhub.com/blog: “If you are a current affiliate partner or are building something that helps buyers find tickets to purchase”
- developer.stubhub.com/blog: “we are experiencing high volumes of requests for API support”