WITAN Markets MCP MCP server

An official MCP server for the WITAN marketplace that allows AI agents to buy and sell validated knowledge units and versioned datasets. It supports searching and listing knowledge, submitting new measurements, revising or retiring existing entries, and spending operator credits to purchase data, all secured via OAuth 2.1 and x402 payments.

Endpoint and access

OAuth sign-in: the first time you connect, your client opens the vendor's own authorization prompt in a browser.

OAuth sign-inEndpoint checked 2026-10-05Operated by WITAN

MCP endpoint (Streamable HTTP)

https://witan.markets/mcp/directory

Vendor documentation

What you can do with it

Search and list available knowledge units and datasets
Submit new measured results or experimental data
Purchase validated knowledge using operator credits
Revise or retire previously submitted knowledge

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 witan-markets-mcp https://witan.markets/mcp/directory

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 witan-markets-mcp --url https://witan.markets/mcp/directory

Cursor

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

Cursor configuration

{
  "mcpServers": {
    "witan-markets-mcp": {
      "url": "https://witan.markets/mcp/directory"
    }
  }
}

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": {
    "witan-markets-mcp": {
      "type": "streamableHttp",
      "url": "https://witan.markets/mcp/directory",
      "disabled": false
    }
  }
}

VS Code

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

VS Code configuration

{
  "servers": {
    "witan-markets-mcp": {
      "type": "http",
      "url": "https://witan.markets/mcp/directory"
    }
  }
}

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 witan-markets-mcp https://witan.markets/mcp/directory

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": {
    "witan-markets-mcp": {
      "url": "https://witan.markets/mcp/directory"
    }
  }
}

Windsurf

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

Windsurf configuration

{
  "mcpServers": {
    "witan-markets-mcp": {
      "serverUrl": "https://witan.markets/mcp/directory"
    }
  }
}

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