Engine MCP Server

AIN stability & bias engine — neutrality index for finance, gaming, AI, crypto (63 tools).

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What is the Engine MCP server?

If you already use Engine, the engine mcp server is the piece that lets your assistant work with it directly. AIN stability & bias engine — neutrality index for finance, gaming, AI, crypto (63 tools).

What the server does

Model Context Protocol (MCP) server for the Zero Point Logic Engine — a post-binary stability and neutrality analysis system.

The ZPL Engine computes the AIN (AI Neutrality Index) — a mathematical measure of how stable or biased a system is. It works across:

Installation

Because this one is hosted, setup is mostly authentication — you point your client at the endpoint and approve access. Nothing runs on your machine, so there is no runtime to keep patched.

Available tools

The toolset is worth reading before you wire it up, because it tells you what the integration is really for:

  • Format — zpl_u_ + 48 hex characters (user keys). v3.5.0+: the MCP only accepts user keys. Service keys (zpl_s_...) are engine-to-engine only —
  • Category — Tools
  • Core — 10
  • Finance — 7
  • Gaming — 6
  • Security — 3
  • Crypto — 4
  • Certification — 3
  • Advanced — 7
  • Universal — 8
  • Meta — 9
  • zpl_about — No

Credentials and setup notes

Configuration is passed through the environment: ZPL_API_KEY, ZPL_MODE, ZPL_SERVICE_KEY, ZPL_STORE_PATH, ANTHROPIC_API_KEY, ZPL_ENGINE_URL. Treat anything key-shaped as a real credential — scope it to the minimum the server needs, and rotate it if it ever lands in a shared config.

Worth knowing first

  • Your data travels to the provider's service, so the usual questions apply about what you send and what they retain.
  • With 14 tools registered it takes up a noticeable share of the context window; turn it off in projects that never touch Engine.
  • Missing credentials fail quietly in some clients — if no tools show up, check the environment block first.
  • Keep per-call confirmation enabled while you learn its behaviour; it is the cheapest safeguard you have.

Where it fits

This sits in the developer tooling group, where several servers overlap in what they claim to do but differ sharply once you actually set them up. Engine's toolset — Format, Category, Core and 11 more — is a fair guide to whether it matches your workflow. It is maintained by cicicalex; worth a glance at recent repository activity before you build anything load-bearing on it.

This entry was verified against Engine's own documentation before publication; SyncDev keeps the directory reviewed rather than auto-generated.

Available tools

ToolWhat it does
Formatzpl_u_ + 48 hex characters (user keys). **v3.5.0+: the MCP only accepts user keys.** Service keys (zpl_s_...) are engine-to-engine only — server-side, IP-restricted, not MCP-usable.
CategoryTools
Core10
Finance7
Gaming6
Security3
Crypto4
Certification3
Advanced7
Universal8
Meta9
zpl_aboutNo
zpl_quotaYes
zpl_score_onlyYes

How to install the Engine MCP server

{
  "mcpServers": {
    "zpl-engine": {
      "command": "npx",
      "args": ["-y", "zpl-engine-mcp@latest"],
      "env": {
        "ZPL_API_KEY": "zpl_u_YOUR_KEY_HERE",
        "ZPL_MODE": "pure"
      }
    }
  }
}

Configuration as documented by the project. Restart the client after saving.

Configuration

VariableDescriptionRequired
ZPL_API_KEYCredential the server authenticates with.Yes
ZPL_MODEConfiguration value read at startup.Optional
ZPL_SERVICE_KEYCredential the server authenticates with.Yes
ZPL_STORE_PATHFilesystem location the server is allowed to use.Optional
ANTHROPIC_API_KEYCredential the server authenticates with.Yes
ZPL_ENGINE_URLEndpoint or connection string the server talks to.Yes

Example prompts to try

  • Use Engine to Format.
  • Use Engine to Category.
  • Use Engine to Core.

Frequently asked questions

It connects Engine to MCP-compatible AI assistants such as Claude and Cursor, exposing 14 tools (Format, Category, Core, and more) that the assistant can call on your behalf. Instead of copying data back and forth by hand, the assistant works with Engine directly.