Causari vs Hail

The first content-addressable ledger for AI agents. Every prompt, model, read, write and reasoning becomes an immutable causal event, captured at the wire, no agent...

Give your AI agent a voice, a phone number, and an inbox. Place AI phone calls with ElevenLabs voices. Run an AI call center. Send SMS and agent mail.

About Causari

The first content-addressable ledger for AI agents. Every prompt, model, read, write and reasoning becomes an immutable causal event, captured at the wire, no agent cooperation required. Trace, bisect, revert and explain every line your agents wrote. re audit reads plain git history, detects AI-authored commits from verifiable metadata ( Co-Authored-By trailers, bot authors, aider markers) and measures how many of those lines are still alive at HEAD. Every number carries its evidence class: VERIFIED (explicit metadata) is never mixed with PROBABLE (heuristic).

About Hail

Give your AI agent a voice, a phone number, and an inbox. Place AI phone calls with ElevenLabs voices. Run an AI call center. Send SMS and agent mail. your agent places calls, sends texts, and works an inbox on numbers and domains you own. ▸ bring your own domains, or use warmed hail domains, on day one. you already work in your coding agent or your backend. so that's where hail works too; no new workflows to learn.