Arbor MCP Server

Graph-native intelligence for codebases. Know what breaks before you break it. Simulated replay - the arbor commands and their output are real (tokio @ 178k LOC). Methodology: BENCHMARKS.md

People who work with ast, code analysis and developer tools and want it reachable from Claude, Cursor, VS Code, or another MCP client. The project is written in Rust.

VERIFIED ACTIVE

LAST COMMIT 2026-09-06 · ★ 158 · #85 OF 106 MAINTAINED AI & ML · VERIFIED 2026-09-18

MIT · Rust servers · how we verify → /methodology

01 · 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.

license MIT - declared in the repository

registry namespace io.github.Anandb71 is GitHub-verified and matches the repo owner

02 · What Arbor can do

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

Latest releases

v3.0.0 · 2026-08-10

v2.6.0 stopped dropping colliding symbols. It did not stop resolving them to the wrong one. · What was wrong · When a bare name matched definitions in several modules, resolve_ref fell through to SameDir and attached…

v2.6.0 · 2026-08-03

Nine correctness defects in the analysis core. Every one was found by running · Arbor against real codebases - honojs/hono, psf/requests - rather than · fixtures, and every one ships with a regression test. · Zero…

v2.5.0 · 2026-07-15

> "Indexing is slow" was the last argument for letting your coding agent navigate with grep -r. · > It's gone. · TL;DR - every number measured, every number reproducible · | Measurement | v2.4.0 | v2.5.0 | Delta |…

03 · Who maintains Arbor

arbor is maintained by anandb71. It's the only MCP server we track from this author; the repo dates to Jan 2026.

04 · Facts

repository
github.com/anandb71/arbor
category
AI & ML - ranked #85 of 106 actively-maintained AI & ML servers as of 2026-09-18.
release cadence
5 releases in the last 90 days (latest 2026-08-10)
registry
io.github.Anandb71/arbor (active, first published 2026-01-07)

05 · Arbor FAQ

What is Arbor?

Graph-native intelligence for codebases. Know what breaks before you break it. Simulated replay - the arbor commands and their output are real (tokio @ 178k LOC). Methodology: BENCHMARKS.md

Is Arbor still maintained?

Yes - as of 2026-09-18, its last commit was 2026-09-06 and it shipped 5 releases in the last 90 days. We re-verify nightly.

06 · Alternatives to Arbor

Alternatives to Arbor

Maintained AI & ML servers if Arbor isn't the fit.

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  3. Haiku RAG Local-first agentic RAG with citations - hybrid search, reranking, multimodal document retrieval ★ 609 · 2026-09-17
  4. Plan Exe MCP server for generating rough-draft project plans from natural-language prompts. ★ 401 · 2026-09-13
  5. Local RAG (shinpr) Easy-to-setup local RAG server with minimal configuration ★ 398 · 2026-09-18
  6. PageIndex MCP Reasoning-based RAG system for chatting with long PDFs. Supports local and online files. ★ 388 · 2026-07-25

Pairs well with

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

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  2. Memorix → memory companion memory · ★ 785
  3. Supabase → database companion database · ★ 2,910
  4. MongoDB MCP Server → database companion database · ★ 1,131

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