polling on 5-minute intervals, a form 4 cluster completing at 14:01 UTC waits for the next tick to reach your agent. that gap is enough to miss the spread close.

shipped webhooks this week. when any of 4 event sources crosses your threshold, your endpoint gets a signed POST. payload mirrors the tool response. dedup by event id so the same cluster does not fire twice.

dispatcher runs every 5 minutes. 15s delivery window. one retry after 60s on failure. 3 failures flips the sub to failing and I get paged.

events at v1:

• insider_cluster (3+ filers, form 4 verified buy)

• confluence (2+ signals stacked on the same asset)

• material_8k (items 1.01, 1.03, 2.01, 2.02, 4.02, 5.02, 8.01)

• etf_flow_milestone (|net flow| > $50M)

signature: HMAC-SHA256 of body against your API key, in the X-FalsifyLab-Signature header. verify before you act.

I built this because my own bots were polling every 5 minutes and missing windows on signals the API already had. one in production fires on insider_cluster, calls confluence_today, and acts inside one agent loop.

Pro Plus is $49/mo and includes 1 webhook URL. EARLY50 takes 50% off the first 3 months, capped at 25 redemptions.

falsifylab.com/pro

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Originally published on FalsifyLab Substack.