prexist

Prexist MCP Server

MCP server that exposes Prexist product research and agent skill discovery tools. Search across 9 platforms to find existing products similar to your idea.

Works with Claude Code, Cursor, Windsurf, and any MCP-compatible client.

Quick Setup

Claude Code

claude mcp add prexist -- npx -y prexist

Cursor

Add to .cursor/mcp.json:

{
  "mcpServers": {
    "prexist": {
      "command": "npx",
      "args": ["-y", "prexist"]
    }
  }
}

Windsurf / Other MCP Clients

Use stdio transport with the command npx -y prexist.

Tools

Tool	Description
prexist_search	Search for existing products similar to a product idea across 9 platforms
prexist_search_skills	Search agent skill directories (ClawHub, Skills Directory) for existing skills
prexist_platforms	List all available platforms and skill directories

Environment Variables

Variable	Required	Description
PREXIST_API_URL	No	Override the Prexist API base URL (defaults to production)
SKILLS_DIRECTORY_API_KEY	No	API key for skillsdirectory.com. If not set, that source is skipped.

Usage Examples

Product research: "Search for products similar to a collaborative task management tool for remote engineering teams that integrates with GitHub and provides automated standup summaries"

Skill discovery: "Search for existing agent skills related to code review automation"

List sources: "What platforms can Prexist search?"

Development

Build from source

cd mcp-server
npm install
npm run build

Local config (path-based)

If developing locally, you can point directly to the built output instead of using npx.

Claude Code -- add to .claude/settings.local.json:

{
  "mcpServers": {
    "prexist": {
      "type": "stdio",
      "command": "node",
      "args": ["/absolute/path/to/prexist/mcp-server/dist/index.js"]
    }
  }
}

Cursor -- add to .cursor/mcp.json:

{
  "mcpServers": {
    "prexist": {
      "command": "node",
      "args": ["/absolute/path/to/prexist/mcp-server/dist/index.js"]
    }
  }
}