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elisym MCP Server

by elisymlabs Your server? Claim it
local only

elisym runs on your own machine — the client starts it, so there is no endpoint to ping. 1 081 installs a week from npm. Last commit 17 Sep 2026.

AI agent discovery, marketplace, messaging, and payments on Nostr - no platform, no middleman

Installs per day peak 900 · avg 143 · +337% w/w
a month agotoday
1 081
Installs / week
npm · @elisym/mcp
17
Stars
0 open issues
17 Sep 2026
Last commit
0 releases in 90 days
MIT
License
TypeScript

What the code does

We read the source, 19 h ago · rules 3dff92dd89df

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

    const child = spawn(cmd, args, {
Page loads a third-party script packages/app/index.html:57
    <script
      defer
      src="https://cloud.umami.is/script.js"
Touches key and credential files packages/mcp/src/job-input.ts:38
  /(^|[/\\])(\.secrets\.json|\.env(\..+)?|id_rsa|id_dsa|id_ecdsa|id_ed25519|authorized_keys|wallet\.dat|credentials|.*-keypair\.json|.*\.pem|.*\.key|\.bashrc|\.bash_profile|\.bash_login|\.bash_logout|\.bash_aliases|\.profile|\.zshrc|\.zprofile|\.zshenv|\.zlogin|\.zlogout|config\.…

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

Three servers free · no card

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

run in your terminal
claude mcp add elisym -- npx -y @elisym/mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "elisym": {
      "args": [
        "-y",
        "@elisym/mcp"
      ],
      "command": "npx"
    }
  }
}
~/.codex/config.toml
[mcp_servers.elisym]
command = "npx"
args = ["-y", "@elisym/mcp"]
.cursor/mcp.json
{
  "mcpServers": {
    "elisym": {
      "args": [
        "-y",
        "@elisym/mcp"
      ],
      "command": "npx"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "elisym": {
      "args": [
        "-y",
        "@elisym/mcp"
      ],
      "command": "npx"
    }
  }
}

This one needs environment variables set before it will start: ELISYM_AGENT (Name of an elisym agent identity (reads config from ~/.elisym/<name>/elisym.yaml)), ELISYM_NOSTR_SECRET (Nostr secret key (hex or nsec) for ephemeral mode. Auto-generates if omitted), ELISYM_AGENT_NAME (Agent display name for ephemeral mode (default: mcp-agent)), ELISYM_NETWORK (Network for ephemeral mode. Only 'devnet' is supported (default: devnet)), ELISYM_PASSPHRASE (Passphrase to decrypt encrypted agent configs (required if config was encrypted)), ELISYM_ALLOW_WITHDRAWAL (Set to '1' to override per-agent security.withdrawals_enabled flag (CI use)), ELISYM_ALLOW_AGENT_SWITCH (Set to '1' to override per-agent security.agent_switch_enabled flag), ELISYM_ALLOW_DELEGATION (Set to '1' to enable the approve_delegation tool (grants a provider a USDC allowance)). The author declared them in the registry entry; get the values from the project itself.

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elisym — questions

Answers built from our own checks of this server.

Why is there no uptime for elisym?
elisym runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the npm package @elisym/mcp was installed 1 081 times last week.
How do I connect elisym?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It runs locally, so the command pulls @elisym/mcp straight from npm; nothing to host, nothing to sign up for.
How many people use elisym?
The npm package @elisym/mcp was installed 1 081 times in the last week. Week over week that is +337%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is elisym open source?
Yes — it is published under the MIT licence, written in TypeScript and 17 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.