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AI and media

tab

io.github.paidwithtab/tab ยท v3.0.0

Agents pay per call over HTTP 402 and x402: 8,600+ API routes, signed budgets and receipts.

Website Source code Set it up

Connect Runs on your machine

Terminal
claude mcp add tab -e TAB_AGENT=<TAB_AGENT> -e TAB_MANDATE=<TAB_MANDATE> -e TAB_MAX_PER_CALL=<TAB_MAX_PER_CALL> -e TAB_CATALOG=<TAB_CATALOG> -- npx -y [email protected]
claude_desktop_config.json
{
  "mcpServers": {
    "tab": {
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "env": {
        "TAB_AGENT": "<TAB_AGENT>",
        "TAB_MANDATE": "<TAB_MANDATE>",
        "TAB_MAX_PER_CALL": "<TAB_MAX_PER_CALL>",
        "TAB_CATALOG": "<TAB_CATALOG>"
      }
    }
  }
}
~/.cursor/mcp.json
{
  "mcpServers": {
    "tab": {
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "env": {
        "TAB_AGENT": "<TAB_AGENT>",
        "TAB_MANDATE": "<TAB_MANDATE>",
        "TAB_MAX_PER_CALL": "<TAB_MAX_PER_CALL>",
        "TAB_CATALOG": "<TAB_CATALOG>"
      }
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "tab": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "env": {
        "TAB_AGENT": "<TAB_AGENT>",
        "TAB_MANDATE": "<TAB_MANDATE>",
        "TAB_MAX_PER_CALL": "<TAB_MAX_PER_CALL>",
        "TAB_CATALOG": "<TAB_CATALOG>"
      }
    }
  }
}

Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.

Tools

This server runs locally, so its tools are listed by your MCP client once it starts.

Environment variables

NameDescription
TAB_AGENT
Optional		Agent key file. Default ~/.tab/agent.json, which `npx paidwithtab init` creates with a mandate and starter credits.
TAB_MANDATE
Optional		Owner-signed mandate file. Default ~/.tab/mandate.json.
TAB_MAX_PER_CALL
Optional		Refuse any single call priced above this many dollars, e.g. 0.05.
TAB_CATALOG
Optional		Catalog to search. Default https://paidwithtab.com.

Details

Package[email protected] (NPM, stdio)
First published3 Nov 2026
Last updated3 Nov 2026
Registry nameio.github.paidwithtab/tab

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