OperatorNest MCP MCP server

OperatorNest provides an official MCP server offering five calculators for estimating AI API costs, finding meeting time zone overlaps, planning recurring schedules, and matching cron expressions. It operates without authentication, stores no user data, and returns detailed calculation results with provenance.

Endpoint and access

No sign-in: your client connects and lists tools immediately, with no account or key.

No sign-inEndpoint checked 2026-10-05Operated by OperatorNest

MCP endpoint (Streamable HTTP)

https://operatornest.com/mcp

Vendor documentation

What you can do with it

Estimate AI API workload costs in USD
Find shared meeting slots across time zones
Plan recurring task schedules and effort
Match and preview cron expressions

Tools advertised by the last live check:

ai_api_cost
meeting_time_zones
recurring_schedule
ai_subscription_stack_cost
cron_next_runs

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers a Streamable HTTP server. Use --scope project to write .mcp.json for the repo.

Claude Code configuration

claude mcp add --transport http operatornest-mcp https://operatornest.com/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).

Codex configuration

codex mcp add operatornest-mcp --url https://operatornest.com/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable operatornest-mcp in your MCP settings.

Cursor configuration

{
  "mcpServers": {
    "operatornest-mcp": {
      "url": "https://operatornest.com/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure). The type must be streamableHttp for a remote HTTP server.

Cline configuration

{
  "mcpServers": {
    "operatornest-mcp": {
      "type": "streamableHttp",
      "url": "https://operatornest.com/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start operatornest-mcp and inspect its tools.

VS Code configuration

{
  "servers": {
    "operatornest-mcp": {
      "type": "http",
      "url": "https://operatornest.com/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.

Gemini CLI configuration

gemini mcp add --transport http operatornest-mcp https://operatornest.com/mcp

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.

Claude Desktop configuration

{
  "mcpServers": {
    "operatornest-mcp": {
      "url": "https://operatornest.com/mcp"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.

Windsurf configuration

{
  "mcpServers": {
    "operatornest-mcp": {
      "serverUrl": "https://operatornest.com/mcp"
    }
  }
}

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