Orca MCP Server

Orchestrated State Machine Language - a two-layer architecture for reliable LLM code generation. It runs locally over stdio via the published package.

People connecting coding agent tools to Claude, Cursor, VS Code, or another MCP client. The project is written in TypeScript.

VERIFIED ACTIVE

LAST COMMIT 2026-06-03 · ★ 14 · #106 OF 194 MAINTAINED CODING AGENT · VERIFIED 2026-08-25

TypeScript servers · how we verify → /methodology

01 · Install Orca MCP Server

before you install - you'll need

Set ORCA_API_KEY, ORCA_PROVIDER before connecting. ORCA_BASE_URL, ORCA_MODEL are optional or environment-specific per the README.

Claude Code

claude mcp add jascal-orca-lang -- npx -y @orcalang/orca-mcp-server

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "jascal-orca-lang": {
      "command": "npx",
      "args": [
        "-y",
        "@orcalang/orca-mcp-server"
      ]
    }
  }
}

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 no standard license detected - usage rights unclear; check the repo before commercial use

npm package @orcalang/orca-mcp-server - the @orcalang scope differs from the repo owner (jascal); confirm it's the project's official package

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

03 · What Orca MCP Server can do

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

Latest releases

v0.1.30 · 2026-06-03

Changed · CI / release: npm publishing for @orcalang/orca-lang, @orcalang/orca-runtime-ts, and @orcalang/orca-mcp-server migrated from a long-lived NPM_TOKEN to OIDC trusted publishing. There is no stored npm…

v0.1.29 · 2026-06-02

Fixed · packages/runtime-python: four QA findings from reports/python-runtime-qa-report.md (RT-06/07/12/14), reproduced end-to-end and covered by 10 regression tests in tests/test_qa_fixes.py: · - RT-12 (HIGH): event.…

v0.1.28 · 2026-05-30

04 · Who maintains Orca MCP Server

Orca MCP Server is maintained by jascal. It's the only MCP server we track from this author; the repo dates to Mar 2026.

05 · Facts

repository: github.com/jascal/orca-lang
category: coding agent - ranked #106 of 194 actively-maintained coding agent servers as of 2026-08-25.
release cadence: 3 releases in the last 90 days (latest 2026-06-03)
registry: io.github.jascal/orca-mcp-server (active, first published 2026-03-29 · 11 versions)
packages: npm:@orcalang/orca-mcp-server

06 · Orca MCP Server FAQ

What is Orca MCP Server?

Orchestrated State Machine Language - a two-layer architecture for reliable LLM code generation. It runs locally over stdio via the published package.

Is Orca MCP Server still maintained?

Yes - as of 2026-08-25, its last commit was 2026-06-03 and it shipped 3 releases in the last 90 days. We re-verify nightly.

How do I install Orca MCP Server?

Run `npx -y @orcalang/orca-mcp-server`. The README documents 4 environment variables (ORCA_API_KEY, ORCA_PROVIDER, ORCA_BASE_URL…) to set first. Set ORCA_API_KEY, ORCA_PROVIDER before connecting. ORCA_BASE_URL, ORCA_MODEL are optional or environment-specific per the README. You can also paste the ready-made client config above.

Does Orca MCP Server 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 Orca MCP Server

Alternatives to Orca MCP Server

Maintained coding agent servers if Orca MCP Server isn't the fit.

Pairs well with

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

More coding agent MCP servers · Entroly · Luogu MCP Server · Baton · Martin Loop · Agent Comm

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