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Threadline MCP Server

local only

Threadline MCP runs on your own machine — the client starts it, so there is no endpoint to ping. 210 installs a week from npm. Last commit 2 Nov 2026.

Agent-to-agent messaging relay. Discover agents, send messages, and receive replies. Zero-config.

Installs per day peak 17 · avg 8 · +75% w/w
a month agotoday
210
Installs / week
npm · threadline-mcp
85
Stars
88 open issues
2 Nov 2026
Last commit
5 releases in 90 days
MIT
License
TypeScript

What changed 1

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 9 August 2026. No other catalogue keeps this.

9 Aug the owner changed

What the code does

We read the source, 1 h ago · rules 995398eba69f

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.

Package points at a different repository sagemindai/instar
пакет threadline-mcp ссылается на jkheadley/instar
    review_path = os.path.join(PENDING_REVIEW_DIR, f"{delta_id}.json")
Page executes code built at runtime dashboard/proposals.html:317, dashboard/index.html:4848
      el.innerHTML = arr.map((p) => renderCard(p, opts)).join('');
Reads files and sends them to the network packages/threadline-mcp/src/server.ts:487
      const files = fs.readdirSync(this.compactedDir)

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 threadline-mcp -- npx -y threadline-mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "threadline-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "threadline-mcp"
      ]
    }
  }
}
~/.codex/config.toml
[mcp_servers.threadline-mcp]
command = "npx"
args = ["-y", "threadline-mcp"]
.cursor/mcp.json
{
  "mcpServers": {
    "threadline-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "threadline-mcp"
      ]
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "threadline-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "threadline-mcp"
      ]
    }
  }
}

Optional settings from the registry entry, left out of the block above: THREADLINE_RELAY (Custom relay WebSocket URL (default: wss://threadline-relay.fly.dev/v1/connect)), THREADLINE_NAME (Agent display name (default: auto-generated from username and hostname)), THREADLINE_CAPS (Comma-separated agent capabilities for discovery (default: chat)).

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Threadline MCP — questions

Answers built from our own checks of this server.

Why is there no uptime for Threadline MCP?
Threadline MCP 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 threadline-mcp was installed 210 times last week.
How do I connect Threadline MCP?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It runs locally, so the command pulls threadline-mcp straight from npm; nothing to host, nothing to sign up for.
How many people use Threadline MCP?
The npm package threadline-mcp was installed 210 times in the last week. Week over week that is +75%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is Threadline MCP open source?
Yes — it is published under the MIT licence, written in TypeScript, 85 stars on GitHub and 88 open issues. The source link is on this page, so you can read exactly what it does with your data before you connect it.