sentarion-mcp (v0.2.2) — governed multi-agent orchestration for AI

Install: pip install sentarion-mcp · Command: sentarion · Apache-2.0 · Hosted endpoint

Sentarion composes three open-source MCP servers into one governed substrate — it connects to them as an MCP client, it does not reimplement them:

• Algernon — fan-out planning/dispatch to cheap parallel workers on your key (or a free local Ollama, auto-detected since 0.2.2)
• ArkHive — hosted, tamper-evident audit/memory chain
• a local covenant chamber (Humane Intelligence, or the bundled arkhive-mcp package when Humane is not installed)

Quick start (Claude Desktop / Claude Code / Cursor)

{ "mcpServers": { "sentarion": { "command": "sentarion", "args": [],
  "env": { "ANTHROPIC_API_KEY": "sk-ant-..." } } } }

Leave the key out and the fleet runs on your local Ollama if one is running. Then say: "Use sentarion: birth yourself as Scout, then orchestrate_and_record a plan for X with k=3."

Tools

Governance — real, wired, fail-closed

Two governors, one decision rule: a rendered veto blocks; a chamber that fails to answer never manufactures a veto; if no chamber renders a verdict, the action is blocked. Every tool that executes work or mutates state (orchestrate_and_record, dispatch_with_dependencies, worktree create/remove) passes the gate first.

0.2.2 — what changed (found by dogfooding)

• Fleet config is explicit. 0.2.1 passed the whole ambient environment to Algernon, so a stale OPENAI_API_KEY in your shell could silently override your Ollama setup (401). Now SENTARION_FLEET_PROVIDER=anthropic|openai|ollama wins, else a set key, else a local Ollama.
• Local chamber always exists. Without Humane installed, the bundled arkhive-mcp package is the local chamber (own chain at ~/.sentarion/local_chamber.db). "humane_not_configured" is gone.
• Dependencies carry data. {{t1}} in a dependent prompt is replaced with task t1's result.
• Hosted birth works (the hosted 0.x server typed covenant as a string; we retry with one).
• recall_and_replan no longer sends an argument the hosted recall never accepted.
• Removed the unused mcp-agent dependency; added project URLs.

Upgrade: Sentarion v2 (paid)

Everything above stays free forever. v2 is the in-house upgrade for teams who run this daily: in-process composition (no subprocess per call), concurrent gate with inferred risk flags and stored policies, {{id}} data flow with budgets + cache + retries, signed audit manifests for every run, adversarial multi-agent code review, worktree sandbox with diff/patch/commit, real cost estimates, MCP progress + background jobs, hosted per-key tenants. Trial key + pricing: https://inboxaxe.com/mcp

Support this project

Sentarion, Algernon and ArkHive are free, open source, and built on our own hardware. Donate: https://dondatabrain.com · Business suite: https://inboxaxe.com