Agent Lsp MCP Server

Code intelligence infrastructure for AI agents. 65 tools, 31 CI-verified languages, 24 agent workflows. Single Go binary. It runs locally over stdio via the published package.

People who work with code intelligence, developer tools and language server protocol and want it reachable from Claude, Cursor, VS Code, or another MCP client. The project is written in Go.

VERIFIED ACTIVE

LAST COMMIT 2026-09-18 · ★ 128 · #19 OF 227 MAINTAINED AUTOMATION · VERIFIED 2026-09-18

MIT · Go servers · how we verify → /methodology

01 · Install Agent Lsp

before you install - you'll need

Set AGENT_LSP_OUTPUT_FORMAT, AGENT_LSP_TOKEN before connecting.

Claude Code

claude mcp add blackwell-systems-agent-lsp -- npx -y @blackwell-systems/agent-lsp

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "blackwell-systems-agent-lsp": {
      "command": "npx",
      "args": [
        "-y",
        "@blackwell-systems/agent-lsp"
      ]
    }
  }
}

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

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

license MIT - declared in the repository

npm package @blackwell-systems/agent-lsp - published under the repo owner's npm scope (@blackwell-systems)

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

03 · What Agent Lsp can do

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

Latest releases

v0.19.2 · 2026-09-02

Fixed · Argument injection via the detect_changes range argument (#23): the range argument was split on .. and passed directly to git diff --name-only as revisions. Because git is executed without a shell, an…

v0.19.1 · 2026-08-29

Fixed · get_cross_repo_references returned a markdown fence as the symbol name: the tool derived the queried symbol's name from the first token of the LSP hover text, which for servers that return markdown hovers (e.g.…

v0.19.0 · 2026-08-29

Added · Custom language routing for unrecognized file extensions (#21): a file whose extension is not in the built-in list now routes to a matching configured server instead of silently falling back to plaintext, so it…

04 · Who maintains Agent Lsp

agent-lsp is maintained by blackwell-systems. We track 3 MCP servers from blackwell-systems - 3 actively maintained, 154 combined GitHub stars, oldest repo from Apr 2026. Full record: all servers from blackwell-systems.

05 · Facts

repository: github.com/blackwell-systems/agent-lsp
category: automation - ranked #19 of 227 actively-maintained automation servers as of 2026-09-18.
release cadence: 8 releases in the last 90 days (latest 2026-09-02)
registry: io.github.blackwell-systems/agent-lsp (active, first published 2026-04-11 · 30 versions)
packages: npm:@blackwell-systems/agent-lsp

06 · Agent Lsp FAQ

What is Agent Lsp?

Code intelligence infrastructure for AI agents. 65 tools, 31 CI-verified languages, 24 agent workflows. Single Go binary. It runs locally over stdio via the published package.

Is Agent Lsp still maintained?

Yes - as of 2026-09-18, its last commit was 2026-09-18 and it shipped 8 releases in the last 90 days. We re-verify nightly.

How do I install Agent Lsp?

Run `npx -y @blackwell-systems/agent-lsp`. The README documents 2 environment variables (AGENT_LSP_OUTPUT_FORMAT, AGENT_LSP_TOKEN) to set first. Set AGENT_LSP_OUTPUT_FORMAT, AGENT_LSP_TOKEN before connecting. You can also paste the ready-made client config above.

Does Agent Lsp run locally?

Yes - it's a stdio server: it runs on your machine (via npx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

07 · Alternatives to Agent Lsp

Alternatives to Agent Lsp

Maintained automation servers if Agent Lsp isn't the fit.

More automation MCP servers · Blinkbox · Bug Bug · Legacy2mcp · Carbone MCP · Ennodia

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