Sage MCP Server

Persistent, consensus-validated memory infrastructure for AI agents. SAGE gives AI agents institutional memory that persists across conversations, goes through consensus validation, carries confidence scores, and decays naturally over time. On a multi-validator network that validation is a BFT quorum; on a personal install it is the node's own signed vote. Not a flat file. Not a vector DB bolted onto a chat app.…

People who work with agentic ai, artificial intelligence and bft consensus and want it reachable from Claude, Cursor, VS Code, or another MCP client. The project is written in Go.

VERIFIED ACTIVE

LAST COMMIT 2026-09-30 · ★ 253 · #141 OF 321 MAINTAINED MEMORY · VERIFIED 2026-09-30

Apache-2.0 · Go servers · how we verify → /methodology

01 · Install Sage

before you install - you'll need

Set SAGE_PROVIDER, SAGE_PROJECT, SAGE_IDENTITY_PATH before connecting.

Docker

docker run -i --rm ghcr.io/l33tdawg/sage:11.23.11

Claude Desktop - add to config

{
  "mcpServers": {
    "l33tdawg-sage": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "ghcr.io/l33tdawg/sage:11.23.11"
      ]
    }
  }
}

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as container (OCI image) - can be sandboxed away from your filesystem

license Apache-2.0 - declared in the repository

registry namespace io.github.l33tdawg is GitHub-verified and matches the repo owner

03 · What Sage can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

Latest releases

v11.23.11 · 2026-09-27

Sovereign Agent Governed Experience - persistent, governed memory for AI agents. · make CLI help inert and wake recipients for federated messages · resolve fences for provably committed memory vote targets · add an…

v11.23.10 · 2026-09-25

Sovereign Agent Governed Experience - persistent, governed memory for AI agents. · bound the nonce-lease + fence wait when the caller supplies no deadline · bump modernc.org/sqlite from 1.58.0 to 1.59.0 in the go-deps…

v11.23.9 · 2026-09-22

Sovereign Agent Governed Experience - persistent, governed memory for AI agents. · run the suite and the race checks as parallel jobs, with Test as the fan-in · surface held signer fences in System Status

04 · Who maintains Sage

sage is maintained by l33tdawg. It's the only MCP server we track from this author; the repo dates to Mar 2026.

05 · Facts

repository: github.com/l33tdawg/sage
category: memory - ranked #141 of 321 actively-maintained memory servers as of 2026-09-30.
release cadence: 10+ releases in the last 90 days (latest 2026-09-27)
registry: io.github.l33tdawg/sage (active, first published 2026-03-12 · 130 versions)
packages: oci:ghcr.io/l33tdawg/sage:11.23.11

06 · Sage FAQ

What is Sage?

Is Sage still maintained?

Yes - as of 2026-09-30, its last commit was 2026-09-30 and it shipped 10+ releases in the last 90 days. We re-verify nightly.

How do I install Sage?

Run `docker run -i --rm ghcr.io/l33tdawg/sage:11.23.11`. The README documents 3 environment variables (SAGE_PROVIDER, SAGE_PROJECT, SAGE_IDENTITY_PATH) to set first. Set SAGE_PROVIDER, SAGE_PROJECT, SAGE_IDENTITY_PATH before connecting. You can also paste the ready-made client config above.

07 · Alternatives to Sage

Alternatives to Sage

Maintained memory servers if Sage isn't the fit.

Pairs well with

Servers that cover what Sage doesn't - only shown when the pairing reason fits the companion.

More memory MCP servers · Copilot Memory MCP · Lore Convo · Memharness · KIP · Cuba Memorys

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