Sage MCP Server

Persistent, consensus-validated memory infrastructure for AI agents. SAGE gives AI agents institutional memory that persists across conversations, goes through BFT consensus validation, carries confidence scores, and decays naturally over time. Not a flat file. Not a vector DB bolted onto a chat app. Infrastructure - built on the same consensus primitives as distributed ledgers.

People who need memory tools inside Claude, Cursor, VS Code, or another MCP client. The project is written in Go.

VERIFIED ACTIVE

LAST COMMIT 2026-08-25 · ★ 244 · #127 OF 259 MAINTAINED MEMORY · VERIFIED 2026-08-25

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

01 · Install Sage

Docker

docker run -i --rm ghcr.io/l33tdawg/sage:11.19.1

Claude Desktop - add to config

{
  "mcpServers": {
    "l33tdawg-sage": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "ghcr.io/l33tdawg/sage:11.19.1"
      ]
    }
  }
}

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

v11.19.1 · 2026-08-25

Sovereign Agent Governed Experience - persistent, governed memory for AI agents. · recover stranded and provider-routed message claims

v11.19.0 · 2026-08-23

Sovereign Agent Governed Experience - persistent, governed memory for AI agents. · App v27 lifecycle fixes for v11.19.0

v11.18.28 · 2026-08-22

Sovereign Agent Governed Experience - persistent, governed memory for AI agents. · restore reserved shared-domain reads · prepare v11.18.28

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 #127 of 259 actively-maintained memory servers as of 2026-08-25.
release cadence: 10+ releases in the last 90 days (latest 2026-08-25)
registry: io.github.l33tdawg/sage (active, first published 2026-03-12 · 89 versions)
packages: oci:ghcr.io/l33tdawg/sage:11.19.1

06 · Sage FAQ

What is Sage?

Is Sage still maintained?

Yes - as of 2026-08-25, its last commit was 2026-08-25 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:11.19.1`. 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 · Memharness · KIP · Cuba Memorys · Nextjs Cache Handler MCP

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