# Deltawren by CyberMax

> Paid API keys from $19/month (Open Domain Ranks feed: 20,000 file requests a month); free tier 200 file requests a day per IP with no key. Buy: https://deltawren.cybermaxtools.com/buy/domain-ranks-monthly?s=lead · all plans: https://deltawren.cybermaxtools.com/docs#pricing. Daily data feeds as files: the same layout and schema as the free CyberMax Hugging Face datasets (CISA KEV + EPSS + CVSS, SEC Form 4 insider transactions, SEC 10-K/10-Q sections, open domain ranks), refreshed every day, plus daily history snapshots and per-file diffs (rows added, removed and changed). Key-based access over HTTPS, Range requests, a JSON manifest with sha256 per file. Free: the feed list, manifests and the daily change counts.

- **Domain**: `deltawren.cybermaxtools.com`
- **Provider**: CyberMax (https://cybermaxtools.com/store/)
- **A2A protocol version**: 0.3.0
- **Kind**: a2a_agent
- **Category**: data
- **Live-responds (last probe)**: True
- **Signed card**: False
- **Streaming**: False
- **Quality score**: 85%

## Skills
- **List data feeds** — Every Deltawren daily data feed: source dataset, refresh cadence, history kept, manifest URL and plans.
- **What changed today** — Rows added, removed and changed per file in one feed since the previous daily build.

## URLs
- Agent card: https://deltawren.cybermaxtools.com/mcp
- Page (HTML): https://agenstry.com/agents/deltawren.cybermaxtools.com
- Documentation: https://deltawren.cybermaxtools.com/docs