Palace MCP Server

A local-first memory retrieval engine for coding agents, implemented in Rust. This project stores verbatim project and conversation memory, embeds it locally, and retrieves source-grounded context through MCP. It is built for coding agents that need to remember decisions, prior fixes, commands, project conventions, and user preferences across sessions without running a separate vector database.

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

VERIFIED ACTIVE

LAST COMMIT 2026-08-18 · ★ 4 · #166 OF 194 MAINTAINED CODING AGENT · VERIFIED 2026-08-25

MIT · Rust servers · how we verify → /methodology

01 · Install Palace

Claude Desktop

Settings → Extensions → Install, then select the https://github.com/AncientiCe/palace-rs/releases/download/v0.13.0/palace-0.13.0.mcpb .mcpb bundle

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 Claude Desktop extension (.mcpb bundle)

license MIT - declared in the repository

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

03 · What Palace can do

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

Latest releases

v0.13.0 · 2026-08-17

[0.13.0] - 2026-08-17 · Added · mine is now a sync, not a one-shot ingest - re-running palace mine · (or the MCP palace_mine tool) against a project you already mined used to · skip every file that already had drawers…

v0.12.0 · 2026-08-03

[0.12.0] - 2026-08-03 · Fixed · palace mine hangs/timeouts on larger-but-not-huge projects - mining · wrote every drawer, and every unique BM25 term within it, as its own · separate SQLite autocommit transaction with…

v0.11.0 · 2026-07-07

[0.11.0] - 2026-07-07 · Added · Memory protocol via MCP initialize instructions - the server now sends · the profile-aware Palace Memory Protocol in InitializeResult.instructions. · Clients that honor the field (Claude…

04 · Who maintains Palace

Palace is maintained by ancientice. It's the only MCP server we track from this author; the repo dates to Apr 2026.

05 · Facts

repository
github.com/ancientice/palace-rs
category
coding agent - ranked #166 of 194 actively-maintained coding agent servers as of 2026-08-25.
release cadence
10+ releases in the last 90 days (latest 2026-08-17)
registry
io.github.AncientiCe/palace-rs (active, first published 2026-07-02 · 5 versions)
packages
mcpb:https://github.com/AncientiCe/palace-rs/releases/download/v0.13.0/palace-0.13.0.mcpb

06 · Palace FAQ

What is Palace?

A local-first memory retrieval engine for coding agents, implemented in Rust. This project stores verbatim project and conversation memory, embeds it locally, and retrieves source-grounded context through MCP. It is built for coding agents that need to remember decisions, prior fixes, commands, project conventions, and user preferences across sessions without running a separate vector database.

Is Palace still maintained?

Yes - as of 2026-08-25, its last commit was 2026-08-18 and it shipped 10+ releases in the last 90 days. We re-verify nightly.

07 · Alternatives to Palace

Alternatives to Palace

Maintained coding agent servers if Palace isn't the fit.

  1. Serena A powerful toolkit for coding, providing semantic retrieval and editing capabilities. ★ 28,461 · 2026-08-20
  2. Desktop Commander MCP server for terminal commands, file operations, and process management ★ 9,387 · 2026-08-21
  3. Ouroboros Pins an acceptance spec; the verify command and expected output never enter the success contract. ★ 5,649 · 2026-08-25
  4. Socraticode MCP server for local codebase indexing, semantic search, and code dependency graphs. ★ 3,274 · 2026-08-24
  5. Magic Cloud Self-hosted low-code platform (Docker); its MCP endpoint runs on your own instance, not via npx. ★ 1,180 · 2026-08-24
  6. LLM Sandbox Securely run LLM-generated code in isolated containers across 7 languages and 3 container backends. ★ 1,111 · 2026-08-23

Pairs well with

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

  1. Context7 → documentation companion documentation · ★ 61,171
  2. GitLab MCP → documentation companion documentation · ★ 1,918
  3. Storybook MCP Addon → developer tools companion developer tools · ★ 268
  4. Xcode Build MCP → developer tools companion developer tools · ★ 6,274
  5. Server Filesystem → filesystem companion filesystem · ★ 38,704
  6. X402 List MCP → filesystem companion filesystem · ★ 58

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