MCP server for building, running and live-testing FiveM servers: RCON + DevCon protocol (reverse-engineered from CitizenFX, live-verified), game-window automation and the mcpb bridge.
Setup
Choose your client, copy the config, then fill in any required environment variables.
claude mcp add fivem --env FIVEM_RCON_PASSWORD='<FIVEM_RCON_PASSWORD>' --env FIVEM_MCPB_TOKEN='<FIVEM_MCPB_TOKEN>' -- npx -y fivem-mcp-server~/.codex/config.toml
[mcp_servers.fivem]
command = "npx"
args = ["-y", "fivem-mcp-server"]
env = { FIVEM_RCON_PASSWORD = "<FIVEM_RCON_PASSWORD>", FIVEM_MCPB_TOKEN = "<FIVEM_MCPB_TOKEN>" }
# codex mcp add fivem --env FIVEM_RCON_PASSWORD='<FIVEM_RCON_PASSWORD>' --env FIVEM_MCPB_TOKEN='<FIVEM_MCPB_TOKEN>' -- npx -y fivem-mcp-server~/.cursor/mcp.json
{
"mcpServers": {
"fivem": {
"command": "npx",
"args": [
"-y",
"fivem-mcp-server"
],
"env": {
"FIVEM_RCON_PASSWORD": "<FIVEM_RCON_PASSWORD>",
"FIVEM_MCPB_TOKEN": "<FIVEM_MCPB_TOKEN>"
}
}
}
}.vscode/mcp.json
{
"servers": {
"fivem": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"fivem-mcp-server"
],
"env": {
"FIVEM_RCON_PASSWORD": "<FIVEM_RCON_PASSWORD>",
"FIVEM_MCPB_TOKEN": "<FIVEM_MCPB_TOKEN>"
}
}
}
}~/.gemini/settings.json
{
"mcpServers": {
"fivem": {
"command": "npx",
"args": [
"-y",
"fivem-mcp-server"
],
"env": {
"FIVEM_RCON_PASSWORD": "<FIVEM_RCON_PASSWORD>",
"FIVEM_MCPB_TOKEN": "<FIVEM_MCPB_TOKEN>"
}
}
}
}claude_desktop_config.json
{
"mcpServers": {
"fivem": {
"command": "npx",
"args": [
"-y",
"fivem-mcp-server"
],
"env": {
"FIVEM_RCON_PASSWORD": "<FIVEM_RCON_PASSWORD>",
"FIVEM_MCPB_TOKEN": "<FIVEM_MCPB_TOKEN>"
}
}
}
}.trae/mcp.json
{
"mcpServers": {
"fivem": {
"command": "npx",
"args": [
"-y",
"fivem-mcp-server"
],
"env": {
"FIVEM_RCON_PASSWORD": "<FIVEM_RCON_PASSWORD>",
"FIVEM_MCPB_TOKEN": "<FIVEM_MCPB_TOKEN>"
}
}
}
}Environment variables
FIVEM_RCON_PASSWORDFIVEM_MCPB_TOKEN
Replace the placeholders with your own credentials and keep them out of version control.