Spiderbrain MCP Server

A repo tells an AI agent what the code is. It never tells it what matters, what a change reaches, or why anything was built the way it was. So every agent re-derives the structure from scratch, every session, and gets it a little wrong.

People who work with blast radius, code context and developer tools and want it reachable from Claude, Cursor, VS Code, or another MCP client. The project is written in JavaScript.

VERIFIED ACTIVE

LAST COMMIT 2026-08-21 · ★ 3 · #103 OF 229 MAINTAINED CODING AGENT · VERIFIED 2026-09-18

MIT · JavaScript servers · how we verify → /methodology

01 · Install Spiderbrain

before you install - you'll need

Set SPIDERBRAIN_API_KEY before connecting.

Claude Code

claude mcp add aabhisrv-spiderbrain.ai-coremind --transport http https://mcp.spiderbrain.ai/mcp

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "aabhisrv-spiderbrain.ai-coremind": {
      "url": "https://mcp.spiderbrain.ai/mcp"
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

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

https://mcp.spiderbrain.ai/mcp

transport: streamable-http

endpoint alive - authentication required · probed 2026-09-18

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 local process (stdio) - runs on your machine with your user's permissions · remote - your agent's requests go to mcp.spiderbrain.ai

endpoint auth requires authentication - rejected our unauthenticated MCP initialize

license MIT - declared in the repository

npm package spiderbrain - unscoped; check the name against the project README before installing

registry vendor namespace ai.spiderbrain - domain-verified with the official MCP registry

03 · Who maintains Spiderbrain

Spiderbrain is maintained by aabhisrv. It's the only MCP server we track from this author; the repo dates to Jun 2026.

04 · Facts

repository: github.com/aabhisrv/spiderbrain.ai-coremind
website: https://spiderbrain.ai/api/
category: coding agent - ranked #103 of 229 actively-maintained coding agent servers as of 2026-09-18.
registry: ai.spiderbrain/spiderbrain (active, first published 2026-08-22)
packages: npm:spiderbrain

05 · Spiderbrain FAQ

What is Spiderbrain?

Is Spiderbrain still maintained?

Yes - as of 2026-09-18, its last commit was 2026-08-21. We re-verify nightly.

How do I install Spiderbrain?

Run `npx -y spiderbrain`. The README documents one environment variable (SPIDERBRAIN_API_KEY) to set first. Set SPIDERBRAIN_API_KEY before connecting. You can also paste the ready-made client config above.

Does Spiderbrain require authentication?

Yes - when we probed the endpoint on 2026-09-18, it rejected an unauthenticated MCP initialize; you'll need credentials to connect.

06 · Alternatives to Spiderbrain

Alternatives to Spiderbrain

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

Pairs well with

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

More coding agent MCP servers · Dekko · Agent Blueprint · AgentsKit Registry · Aide Memory · Coldstart

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