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Halowerk Narrative Velocity
x402
Halowerk Narrative Velocity is a paid API for AI agents from research.halowerk.com, paid per call via x402, $0.006/call, status unknown (last checked 2026-09-13).
Computes topic coverage growth rate over a recent vs. baseline window and reports language and publishing-country spread to distinguish local events from globally spreading narratives.
Price / call$0.006
Success—
StatusUnknown
How this service works
Computes the growth of coverage for a topic between a recent window and a baseline, and reports the spread across languages and publishing countries alongside it. The spread is the more informative half: a topic exploding in one language is a national event, one rising simultaneously across eight languages is something else entirely, and a growth rate alone cannot tell them apart.
Output
Returns a growth rate quantifying how much coverage of the topic has expanded in the recent window relative to the baseline, plus a breakdown of the spread across languages and publishing countries — indicating whether the narrative is concentrated in one region or diffusing broadly across the global media ecosystem.
Example use cases
Detecting global vs local crisis spread
“Measure the narrative velocity of 'wildfires in Chile' over the past 5 days versus the previous 30-day baseline, and show me how many languages and countries are covering it — I need to know if this is a regional story or going international.”
PR monitoring for emerging brand controversy
“Check how quickly news coverage of 'Boeing safety concerns' has grown in the past week compared to the month before, and break down the spread by language and publishing country so I can see where the story is gaining the most traction.”
Research signal for geopolitical topic
“I'm studying disinformation campaigns — can you compute the coverage growth rate for 'election interference' over the last 14 days vs the prior 60 days and tell me across how many languages and countries it's being reported?”
Technical details
Endpoint
POSThttps://research.halowerk.com/v1/narrative-velocityWhen to prefer
Choose this endpoint when you need to distinguish between a topic that is merely trending in one country vs. one that is genuinely spreading across global media landscapes. It is uniquely suited for detecting virality patterns, early-warning geopolitical signals, or narrative diffusion analysis where both velocity and geographic/linguistic spread matter. Prefer it over a simple news search when the dimension of interest is momentum and spread rather than content retrieval.
Side effects
- Topic too obscure to have measurable baseline coverage, returning zero or null growth rate
- Time windows too short to capture meaningful signal
- Ambiguous topic keyword matching unrelated stories, inflating or deflating counts
- API returns error if required time window parameters are missing or malformed
- Rate limiting or payment failure for high-volume polling use cases
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| topic | string | |
| window | string | |
| baseline | string |
Tags
x402
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