Koskamo

tab MCP

An open-source MCP server that enables AI agents to discover paid HTTP services, pay per request using signed mandates, and receive signed receipts. It integrates with Claude Code and supports HTTP 402 semantics for micropayments settled on Robinhood Chain.

Visit paidwithtab

Package and access

Local package with source-attributed installation metadata. Koskamo does not execute packages during review.

tab MCP logo, by paidwithtabCommunity listingLocal stdioSource reviewed; not executedPublished by paidwithtab
Vendor documentation

What you can do with it

  • Enable agents to pay for web search services
  • Allow agents to fetch weather forecasts via paid APIs
  • Let agents read web pages as clean text or markdown
  • Facilitate agent payments for exchange rate data

Source and maintenance

Community listingRegistry 2.3.1
mcp-registry: io.github.paidwithtab/tab@2.3.1Source repositoryProject website
Maintenance checked

Packages and installation

Source-provided package data. Koskamo has not executed or live-probed this package.

paidwithtab 2.3.1

npm
paidwithtab package definition
{
  "version": "2.3.1",
  "transport": "stdio",
  "identifier": "paidwithtab",
  "registryType": "npm",
  "packageArguments": [
    {
      "type": "positional",
      "value": "mcp"
    }
  ],
  "environmentVariables": [
    {
      "name": "TAB_AGENT",
      "description": "Agent key file. Default ~/.tab/agent.json, which `npx paidwithtab init` creates with a mandate and starter credits."
    },
    {
      "name": "TAB_MANDATE",
      "description": "Owner-signed mandate file. Default ~/.tab/mandate.json."
    },
    {
      "name": "TAB_MAX_PER_CALL",
      "description": "Refuse any single call priced above this many dollars, e.g. 0.05."
    },
    {
      "name": "TAB_CATALOG",
      "description": "Catalog to search. Default https://paidwithtab.com."
    }
  ]
}

Tools

Reported by the attributed source; not independently observed by Koskamo.

No tool definitions available.

Connect from your client

Each snippet configures the same source-provided package; replace placeholders before 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.

Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.
Cursor configuration
{
  "mcpServers": {
    "tab-mcp-paidwithtab": {
      "command": "npx",
      "args": [
        "-y",
        "paidwithtab@2.3.1",
        "mcp"
      ],
      "env": {
        "TAB_AGENT": "<YOUR_TAB_AGENT>",
        "TAB_MANDATE": "<YOUR_TAB_MANDATE>",
        "TAB_MAX_PER_CALL": "<YOUR_TAB_MAX_PER_CALL>",
        "TAB_CATALOG": "<YOUR_TAB_CATALOG>"
      }
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.
Cline configuration
{
  "mcpServers": {
    "tab-mcp-paidwithtab": {
      "command": "npx",
      "args": [
        "-y",
        "paidwithtab@2.3.1",
        "mcp"
      ],
      "env": {
        "TAB_AGENT": "<YOUR_TAB_AGENT>",
        "TAB_MANDATE": "<YOUR_TAB_MANDATE>",
        "TAB_MAX_PER_CALL": "<YOUR_TAB_MAX_PER_CALL>",
        "TAB_CATALOG": "<YOUR_TAB_CATALOG>"
      }
    }
  }
}

VS Code

Merge this local stdio configuration, replace every placeholder environment value, and restart VS Code. Koskamo has not executed this package.
VS Code configuration
{
  "servers": {
    "tab-mcp-paidwithtab": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "paidwithtab@2.3.1",
        "mcp"
      ],
      "env": {
        "TAB_AGENT": "<YOUR_TAB_AGENT>",
        "TAB_MANDATE": "<YOUR_TAB_MANDATE>",
        "TAB_MAX_PER_CALL": "<YOUR_TAB_MAX_PER_CALL>",
        "TAB_CATALOG": "<YOUR_TAB_CATALOG>"
      }
    }
  }
}

Claude Desktop

Merge this local stdio configuration, replace every placeholder environment value, and restart Claude Desktop. Koskamo has not executed this package.
Claude Desktop configuration
{
  "mcpServers": {
    "tab-mcp-paidwithtab": {
      "command": "npx",
      "args": [
        "-y",
        "paidwithtab@2.3.1",
        "mcp"
      ],
      "env": {
        "TAB_AGENT": "<YOUR_TAB_AGENT>",
        "TAB_MANDATE": "<YOUR_TAB_MANDATE>",
        "TAB_MAX_PER_CALL": "<YOUR_TAB_MAX_PER_CALL>",
        "TAB_CATALOG": "<YOUR_TAB_CATALOG>"
      }
    }
  }
}

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