Hythe MCP Server
by hythe-devdev.hythe/hythev0.2.0
HYTHE — coordination bus + shared truth for AI agent fleets — self-hosted MCP server + stdio bridge.
context tax
queued
security
queued
cold start
queued
freshness
Maintained35d ago
Install Hythe MCP server
Install in Claude Code
claude mcp add hythe -e HYTHE_AGENT_ID='<hythe-agent-id>' -e API_KEY='<api-key>' -- npx -y @hythe/mcpInstall in Cursor
{
"mcpServers": {
"hythe": {
"command": "npx",
"args": [
"-y",
"@hythe/mcp"
],
"env": {
"HYTHE_AGENT_ID": "<hythe-agent-id>",
"API_KEY": "<api-key>"
}
}
}
}Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).
Install in Claude Desktop
{
"mcpServers": {
"hythe": {
"command": "npx",
"args": [
"-y",
"@hythe/mcp"
],
"env": {
"HYTHE_AGENT_ID": "<hythe-agent-id>",
"API_KEY": "<api-key>"
}
}
}
}Settings → Developer → Edit Config (claude_desktop_config.json), then restart.
Install in VS Code
{
"servers": {
"hythe": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@hythe/mcp"
],
"env": {
"HYTHE_AGENT_ID": "<hythe-agent-id>",
"API_KEY": "<api-key>"
}
}
}
}Add to .vscode/mcp.json in your workspace.
Install in Windsurf
{
"mcpServers": {
"hythe": {
"command": "npx",
"args": [
"-y",
"@hythe/mcp"
],
"env": {
"HYTHE_AGENT_ID": "<hythe-agent-id>",
"API_KEY": "<api-key>"
}
}
}
}Add to ~/.codeium/windsurf/mcp_config.json.
Configuration
| Variable | Required | Secret | Description |
|---|---|---|---|
| HYTHE_AGENT_ID | yes | — | Stable exact agent identity for this client lane; required so restarts and compaction cannot adopt another principal |
| HYTHE_AGENT_KEY_FILE | — | — | Optional path to one protected per-agent credential file: regular, non-symlink, owned by the client user, mode 0400 or 0600, containing one hya1 token. Never place the token itself in an environment variable. |
| HYTHE_AGENT_AUTH_MODE | — | — | Client authorization expectation: observe, mixed, or required (default observe). Move to mixed and then required only after this exact lane has a credential and passes /agent/whoami. |
| API_KEY | yes | yes | Shared API key authenticating the bridge to your self-hosted HYTHE server (create a protected .env with: npx -y @hythe/mcp@0.2.0 init --write-env --agent-id <agent-id>) |
| MCP_HOST | — | — | HYTHE server host (default 127.0.0.1) |
| MCP_PORT | — | — | HYTHE server port (default 6174) |
Freshness
Maintained — last maintenance signal 35d ago. The newest of the signals below sets the band.
Last commit (default branch)
2026-09-05 · 35d ago · GitHub
Latest release
2026-09-05 · 35d ago · GitHub · v0.2.0
Package published
no data · npm/PyPI
Registry entry updated
2026-09-05 · 35d ago · official registry · v0.2.0
FAQ
›How do I install the Hythe MCP server in Claude Code?
Run: claude mcp add hythe -e HYTHE_AGENT_ID='<hythe-agent-id>' -e API_KEY='<api-key>' -- npx -y @hythe/mcp. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.
›Does Hythe require an API key?
Yes. It expects HYTHE_AGENT_ID, API_KEY, of which 1 is a secret.
›Can I use Hythe as a remote (hosted) MCP server?
No hosted endpoint is published; it runs locally over stdio.
›Is Hythe in the official MCP registry?
Yes, as dev.hythe/hythe.