Synero asks up to four leading models (GPT, Claude, Gemini, Grok) the same question and returns one consensus answer plus an agreement analysis: what the models agree on, and exactly where they split.

This package is a thin stdio proxy to Synero's remote MCP server (https://synero.ai/api/mcp). The tool, its schema and its output are the same as the one-click remote connector. You need a Synero account and an API key from https://synero.ai/app/api-keys.

Install

Claude Code (local stdio):

claude mcp add synero -e SYNERO_API_KEY=sk_live_your_key -- npx -y @syneroai/mcp

Claude Code (remote, no package):

claude mcp add --transport http synero https://synero.ai/api/mcp --header "Authorization: Bearer sk_live_your_key"

Cursor (.cursor/mcp.json) and Windsurf (~/.codeium/windsurf/mcp_config.json):

{
  "mcpServers": {
    "synero": {
      "command": "npx",
      "args": ["-y", "@syneroai/mcp"],
      "env": { "SYNERO_API_KEY": "sk_live_your_key" }
    }
  }
}

Claude Desktop (claude_desktop_config.json): the same block as above.

Claude.ai and other clients with remote connectors: add https://synero.ai/api/mcp as a custom connector. You sign in with your Synero account (OAuth); no key to paste.

Tool: `query_council`

Input	Purpose
`prompt`	The question (required, max 10,000 characters).
`models`	1 to 4 model ids, at most one per provider.
`preset`	`solo`, `duel`, `council` (default) or `deep`.
`web_search`	Let each model search the web first.
`synthesis`	Default `true`: consensus answer plus agreement analysis. `false` is the cheaper raw mode: each model's answer for you to reconcile.
`detail`	`synthesis` (default) or `full` (adds each model's complete answer).
`parent_query_id`	A previous result's `queryId`, for a follow-up with full context.
`private`	Do not save to history (no `queryId`, so no follow-up).
`context`, `template`, `thread_id`, `config`	Attachments, built-in templates, thread grouping, legacy persona config.

Results include a text rendering and structuredContent (consensusAnswer, consensus, answers, queryId, url).

Environment

Variable	Default	Purpose
`SYNERO_API_KEY`	none (required)	Sent as `Authorization: Bearer` to the remote server.
`SYNERO_MCP_URL`	`https://synero.ai/api/mcp`	Override the remote endpoint.