ArkHive MCP server

ArkHive MCP

<!-- mcp-name: io.github.sammyboi81/arkhive -->

Local-first governed memory for AI agents, with persistent identity, tamper-evident history, verification, and constraint-aware decisions.

Tell your AI: “Check the ArkHive.”

ArkHive is an open-source Model Context Protocol server for developers and teams that want Claude, Codex, and other MCP clients to retain accountable context across sessions without sending memory to a hosted service by default.

What you get

back next time — no blank slate every morning.

• Memory that survives the session. Your AI writes what it did and reads it

delete, or reorder any past record and verification fails — you get evidence of change, not silent rewriting.

• Tamper-evident history. Every record is hash-chained (SHA-256). Edit,

machine. Nothing is transmitted unless you explicitly opt in.

• Local-first, no telemetry. The chain is a plain SQLite file on your

Verify it yourself — one command, no key

Don't take "tamper-evident" on faith. Run the proof:

git clone https://github.com/sammyboi81/arkhive && cd arkhive
./scripts/verify.sh          # or:  python -m benchmark

It writes a throwaway hash-chained ledger, verifies it clean, then forges one block with a direct SQL edit and shows verification catch it. Real output:

[3] verify (untouched):    blocks=20 broken_links=0 -> INTACT — context provably unbroken
[4] TAMPERED block idx=10: 'event_10' -> 'FORGED_EVENT' (direct SQL edit, no hash recomputed)
[5] verify (after tamper): blocks=20 broken_links=1 -> TAMPERED — 1 broken links
RESULT: PASS - tamper-evidence proven.

A clean chain verifies with 0 broken links; a single forged edit is caught. Your real data/chain.db is never touched. For the honest limits of what a hash chain can and cannot protect, see What the hash chain protects against below.

New: the Claude Code Seatbelt. Hooks that make Claude Code (and Cursor) ask before anything irreversible, remember the

project between sessions on this chain, and refuse to say "done" until the code ran. Engine: pip install sentarion-mcp

then sentarion seatbelt install. One-click kit with five policies and three skills: https://inboxaxe.com/mcp#seatbelt

Install in one command

python -m pip install arkhive-mcp

The MCP command is arkhive-mcp.

Renamed: this package was formerly published as humane-intelligence

(still installable, now frozen). ArkHive is the product;

#HumaneIntelligence is the movement.

Connect an MCP client

Claude Desktop

Add this entry to your Claude Desktop MCP configuration, then restart Claude Desktop:

{
  "mcpServers": {
    "arkhive": {
      "command": "arkhive-mcp",
      "args": []
    }
  }
}

If Claude Desktop cannot find commands installed by pip, replace arkhive-mcp with the absolute path printed by:

python -c "import shutil; print(shutil.which('arkhive-mcp'))"

Codex

codex mcp add arkhive -- arkhive-mcp

Confirm it is configured with:

codex mcp list

Available tools

The local chain is stored in SQLite. The exact location depends on where the server command is launched; use a dedicated working directory if you want to control where its data/chain.db file lives.

Two-minute verification

Shortened. The full README is on GitHub.