Fly Io runs on your own machine — the client starts it, so there is no endpoint to ping. 72 installs a week from npm. Last commit 30 Aug 2026.
MCP server for managing Fly.io machines, apps, logs, and Docker images.
What the code does
We read the source, 4 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.
этот файл ставится пользователю, но в репозитории его нет
const initProcess = spawn(this.claudeCodePath, args, {
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 fly-io -e 'FLY_IO_API_TOKEN=<FLY_IO_API_TOKEN>' -- npx -y fly-io-mcp-server{
"mcpServers": {
"fly-io": {
"command": "npx",
"args": [
"-y",
"fly-io-mcp-server"
],
"env": {
"FLY_IO_API_TOKEN": "<FLY_IO_API_TOKEN>"
}
}
}
}[mcp_servers.fly-io]
command = "npx"
args = ["-y", "fly-io-mcp-server"]
env = { FLY_IO_API_TOKEN = "<FLY_IO_API_TOKEN>" }{
"mcpServers": {
"fly-io": {
"command": "npx",
"args": [
"-y",
"fly-io-mcp-server"
],
"env": {
"FLY_IO_API_TOKEN": "<FLY_IO_API_TOKEN>"
}
}
}
}{
"servers": {
"fly-io": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"fly-io-mcp-server"
],
"env": {
"FLY_IO_API_TOKEN": "<FLY_IO_API_TOKEN>"
}
}
}
}Put your own value in place of
<FLY_IO_API_TOKEN> (API token for Fly.io authentication).
The author’s registry entry marks it as required.
Optional settings from the registry entry, left out of the block above:
FLY_IO_APP_NAME (Scope server to a single app (disables app management tools)), ENABLED_TOOLGROUPS (Comma-separated tool groups to enable (readonly, write, admin, apps, machines, logs, ssh, images, registry)), SKIP_HEALTH_CHECKS (Skip API validation at startup), DISABLE_DOCKER_CLI_TOOLS (Disable Docker-based registry tools).
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Fly Io — questions
Answers built from our own checks of this server.