MCP server for Styx — intelligent AI routing across OpenAI, Anthropic, Google, and Mistral.
Setup
Choose your client, copy the config, then fill in any required environment variables.
claude mcp add styx --env STYX_API_KEY='<STYX_API_KEY>' --env STYX_TOKEN='<STYX_TOKEN>' -- npx -y styx-mcp-server~/.codex/config.toml
[mcp_servers.styx]
command = "npx"
args = ["-y", "styx-mcp-server"]
env = { STYX_API_KEY = "<STYX_API_KEY>", STYX_TOKEN = "<STYX_TOKEN>" }
# codex mcp add styx --env STYX_API_KEY='<STYX_API_KEY>' --env STYX_TOKEN='<STYX_TOKEN>' -- npx -y styx-mcp-server~/.cursor/mcp.json
{
"mcpServers": {
"styx": {
"command": "npx",
"args": [
"-y",
"styx-mcp-server"
],
"env": {
"STYX_API_KEY": "<STYX_API_KEY>",
"STYX_TOKEN": "<STYX_TOKEN>"
}
}
}
}.vscode/mcp.json
{
"servers": {
"styx": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"styx-mcp-server"
],
"env": {
"STYX_API_KEY": "<STYX_API_KEY>",
"STYX_TOKEN": "<STYX_TOKEN>"
}
}
}
}~/.gemini/settings.json
{
"mcpServers": {
"styx": {
"command": "npx",
"args": [
"-y",
"styx-mcp-server"
],
"env": {
"STYX_API_KEY": "<STYX_API_KEY>",
"STYX_TOKEN": "<STYX_TOKEN>"
}
}
}
}claude_desktop_config.json
{
"mcpServers": {
"styx": {
"command": "npx",
"args": [
"-y",
"styx-mcp-server"
],
"env": {
"STYX_API_KEY": "<STYX_API_KEY>",
"STYX_TOKEN": "<STYX_TOKEN>"
}
}
}
}.trae/mcp.json
{
"mcpServers": {
"styx": {
"command": "npx",
"args": [
"-y",
"styx-mcp-server"
],
"env": {
"STYX_API_KEY": "<STYX_API_KEY>",
"STYX_TOKEN": "<STYX_TOKEN>"
}
}
}
}Environment variables
STYX_API_KEYSTYX_TOKEN
Replace the placeholders with your own credentials and keep them out of version control.