LastSearch

Search npm v1.4.1

Evidence-backed web research for AI agents with citations and confidence scores.

View source ↗ Website ↗ Generate config for multiple servers More servers

Install

Pin version registry version 1.4.1

npm
npx -y lastsearch

npm
npx -y lastsearch@1.4.1

Setup by client

Pick your client — the config below is generated for this server (local stdio). Copy respects the “Pin version” switch above.

claude_desktop_config.json

{
  "mcpServers": {
    "lastsearch": {
      "command": "npx",
      "args": [
        "-y",
        "lastsearch"
      ],
      "env": {
        "LASTSEARCH_API_KEY": "<YOUR_LASTSEARCH_API_KEY>"
      }
    }
  }
}

{
  "mcpServers": {
    "lastsearch": {
      "command": "npx",
      "args": [
        "-y",
        "lastsearch@1.4.1"
      ],
      "env": {
        "LASTSEARCH_API_KEY": "<YOUR_LASTSEARCH_API_KEY>"
      }
    }
  }
}

Format verified against the official Claude Desktop docs ↗.

terminal

claude mcp add --env LASTSEARCH_API_KEY=<YOUR_LASTSEARCH_API_KEY> lastsearch -- npx -y lastsearch

claude mcp add --env LASTSEARCH_API_KEY=<YOUR_LASTSEARCH_API_KEY> lastsearch -- npx -y lastsearch@1.4.1

Format verified against the official Claude Code docs ↗.

.cursor/mcp.json

{
  "mcpServers": {
    "lastsearch": {
      "command": "npx",
      "args": [
        "-y",
        "lastsearch"
      ],
      "env": {
        "LASTSEARCH_API_KEY": "<YOUR_LASTSEARCH_API_KEY>"
      }
    }
  }
}

{
  "mcpServers": {
    "lastsearch": {
      "command": "npx",
      "args": [
        "-y",
        "lastsearch@1.4.1"
      ],
      "env": {
        "LASTSEARCH_API_KEY": "<YOUR_LASTSEARCH_API_KEY>"
      }
    }
  }
}

Format verified against the official Cursor docs ↗.

.vscode/mcp.json

{
  "servers": {
    "lastsearch": {
      "command": "npx",
      "args": [
        "-y",
        "lastsearch"
      ],
      "env": {
        "LASTSEARCH_API_KEY": "<YOUR_LASTSEARCH_API_KEY>"
      }
    }
  }
}

{
  "servers": {
    "lastsearch": {
      "command": "npx",
      "args": [
        "-y",
        "lastsearch@1.4.1"
      ],
      "env": {
        "LASTSEARCH_API_KEY": "<YOUR_LASTSEARCH_API_KEY>"
      }
    }
  }
}

Format verified against the official VS Code docs ↗.

mcp_config.json

{
  "mcpServers": {
    "lastsearch": {
      "command": "npx",
      "args": [
        "-y",
        "lastsearch"
      ],
      "env": {
        "LASTSEARCH_API_KEY": "<YOUR_LASTSEARCH_API_KEY>"
      }
    }
  }
}

{
  "mcpServers": {
    "lastsearch": {
      "command": "npx",
      "args": [
        "-y",
        "lastsearch@1.4.1"
      ],
      "env": {
        "LASTSEARCH_API_KEY": "<YOUR_LASTSEARCH_API_KEY>"
      }
    }
  }
}

Format verified against the official Windsurf docs ↗.

Environment variables

Defined in the server's official registry manifest. Required secrets are shown as <YOUR_…> placeholders in the configs above.

LASTSEARCH_API_KEY required secret — LastSearch API key (get one at https://lastsearch.ai/dashboard). Required for all API access.

GitHub

⭐ 20 stars · 最近更新于 18 天前 · Apache-2.0 license

About this server

LastSearch blue.svg) Research infrastructure for AI agents with Grounded Intelligence — real time web search, evidence extraction, verification, and structured citations. Every claim is backed by a URL. Every answer has a confidence score. Website · Playground · API Docs · Alternatives · Discord Pac…

Summary from the project README — github.com/lastsearch-hq/lastsearch

Distributed as npm, listed under Search. Review our MCP security guide before granting access to real data.

Frequently asked questions

What does the LastSearch MCP server do?

How do I install LastSearch?

Run the install command shown above, then paste the config for your client (Claude Desktop, Claude Code, Cursor, VS Code or Windsurf) into its MCP settings and restart the client.

Is LastSearch free to use?

The MCP server itself is free to install. The source is public on https://github.com/lastsearch-hq/lastsearch. Any third-party service it calls may require its own API key and account.

Which clients support LastSearch?

Any MCP-compatible client can use it, including Claude Desktop, Claude Code, Cursor, VS Code, Windsurf and custom agents.

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