How Monitors work
1
Describe what you want to track
Save a search, a schedule, and the fields you want to extract. New monitors should start as
inactive so they cannot produce scheduled results before you test them.2
Test it with historical data
Run a simulation over recent data. The simulation uses the same configuration as the live monitor but does not activate it.
3
Review the events
Check the results and their source links. Refine the search or extraction instructions if important developments are missing or irrelevant ones appear.
4
Turn on continuous monitoring
Change the monitor’s status to
active. Bigdata then evaluates it automatically at the frequency you selected.5
Use the results
Retrieve completed runs and send their structured events to your application, alerting system, or research workflow.
Create your first monitor
This example watches for credit rating downgrades and negative watch placements affecting BlackRock. It is inactive when created and will run once per hour after activation. Onlyintent and schedule are required to create a monitor. The remaining fields let you customize its search and output:
name: a short label that helps you recognize the monitorintent: what counts as a relevant event; this cannot be changed after creationstatus: whether the monitor is active or inactivesearch_queries: the search mode and Search documents query to use for each runschedule: how often an active monitor searchesstructured_output: the fields returned with each eventextraction_instructions: what to include and excludeentity_watchlist: the companies or other entities to track
data. Save data.id; you will use it to test, update, and retrieve the monitor.
The watchlist uses Bigdata entity IDs. Use the Knowledge Graph API to find the ID for each company you want to track.
Test the monitor
A simulation tests the monitor without turning it on. In this example, the monitor runs over six consecutive one-hour periods ending at noon UTC on August 27, 2026.end_timestamp must be in UTC and at least five minutes in the past. number_of_runs is the number of periods to test, based on the monitor’s frequency.
The API returns 202 Accepted because the simulation continues in the background. Save the returned simulation_id, then use it to check the results:
PENDING: still processingCOMPLETED: ready to reviewFAILED: could not be completed
Start continuous monitoring
When the simulation produces the events you expect, turn on the monitor by changing its status:inactive.
Key concepts
Monitor
A monitor combines a saved search, extraction instructions, an output format, and a schedule. An active monitor evaluates newly available content automatically.Simulation
A simulation tests the monitor against historical data without activating it. Use simulations to improve the quality of your results before sending them into a live workflow.Run
A run is one evaluation period. For an hourly monitor, each run searches one hour of newly available content. Runs can come from an active monitor or a simulation.Event
An event is a relevant development extracted during a run. It contains a summary, your structured fields, and links to the source content that supports it. In API responses, events appear in theevents array.
Search query
Monitors use the samequery object as Search documents. This includes search text, filters, external search, chunk limits, and ranking settings, so you do not need to learn a separate query format.
The monitor adds the correct time period automatically, so do not use a fixed timestamp filter.
Structured output
The structured output describes the fields returned for every event:textstores names, labels, and short details.numberstores numeric values.enumlimits a field to a predefined set of values.entity_referencelinks a company or other entity to the Bigdata knowledge graph.
What you can monitor
Once the first monitor is working, the same workflow can support:M&A Activity Monitor
Track announced acquisitions, divestitures, bids, and material deal-status changes.
Central Bank Policy Decisions
Capture rate decisions and changes in forward guidance from major central banks.
Executive Departures
Detect confirmed departures, retirements, and leadership transitions.
Regulatory & Legal Actions
Watch for investigations, enforcement actions, judgments, and settlements.
Layoffs & Restructuring
Identify announced workforce reductions and major operating restructurings.
AI Product & Model Launches
Follow commercially relevant AI launches, releases, and availability changes.