YAAC runs on your own machine — the client starts it, so there is no endpoint to ping. 1 050 installs a week from pypi. Last commit 5 Nov 2026.
Messaging between concurrent AI coding sessions, across clients, over MCP. Zero infrastructure.
What the code does
We read the source, 2 d ago · rules 995398eba69f
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.
done = subprocess.run(["ps", "-o", "ppid=", "-p", str(pid)], capture_output=True, text=True, timeout=5)
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.
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.
claude mcp add yet-another-agentic-chat -- uvx yet-another-agentic-chat{
"mcpServers": {
"yet-another-agentic-chat": {
"command": "uvx",
"args": [
"yet-another-agentic-chat"
]
}
}
}[mcp_servers.yet-another-agentic-chat]
command = "uvx"
args = ["yet-another-agentic-chat"]{
"mcpServers": {
"yet-another-agentic-chat": {
"command": "uvx",
"args": [
"yet-another-agentic-chat"
]
}
}
}{
"servers": {
"yet-another-agentic-chat": {
"type": "stdio",
"command": "uvx",
"args": [
"yet-another-agentic-chat"
]
}
}
}Alternatives to YAAC
same job, measured the same wayPass the baton between coding agents: convert sessions across Claude Code, OpenCode, Codex & more.
Messaging between coding-agent sessions on different machines, through a server you host.
Memory for coding conventions and standing instructions that persists across sessions.
Zero-LLM structural code retrieval for AI coding agents, served over MCP.
Attribution and settlement infrastructure for AI agent content access over HTTP 402 and MCP.
Mail between coding-agent sessions, on one machine or across machines; relays to a Swarmail server.
Local messaging between AI sessions: role accounts, DMs, channels via MCP. Windows only.
Lossless archive and search for AI agent sessions across clients, exposed to agents over MCP.
YAAC — questions
Answers built from our own checks of this server.