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Using Claude Desktop to Access the Token API via MCP

Prerequisites

  • Claude Desktop⁠ installed.
  • A JWT token from The Graph Market⁠.
  • npx⁠ or bunx⁠ installed and available in your path.
  • The @pinax/mcp package requires Node 18+, as it relies on built-in fetch() / Headers, which are not available in Node 17 or older. You may need to specify an exact path to an up-to-date Node version, or uninstall previous versions of Node to ensure @pinax/mcp uses the correct version.

Configuration

Create or edit your claude_desktop_config.json file.

  • OSX: ~/Library/Application Support/Claude/claude_desktop_config.json
  • Windows: %APPDATA%\Claude\claude_desktop_config.json
  • Linux: .config/Claude/claude_desktop_config.json

REST-based MCP

claude_desktop_config.json
{  "mcpServers": {    "token-api": {      "command": "npx",      "args": ["@pinax/mcp", "--remote-url", "https://token-api.mcp.thegraph.com/"],      "env": {        "ACCESS_TOKEN": "<https://thegraph.market JWT Access Token>"      }    }  }}

SQL-based MCP

claude_desktop_config.json
{  "mcpServers": {    "token-api": {      "command": "npx",      "args": ["@pinax/mcp", "--remote-url", "https://token-api.mcp.thegraph.com/sql"],      "env": {        "ACCESS_TOKEN": "<https://thegraph.market JWT Access Token>"      }    }  }}

The previous --sse-url option is deprecated, use --remote-url.

Troubleshooting

To enable logs for troubleshooting the MCP, add the option "--verbose", "true" under "args".

claude_desktop_config.json
{  "mcpServers": {    "token-api": {      "command": "npx",      "args": ["@pinax/mcp", "--remote-url", "https://token-api.mcp.thegraph.com/", "--verbose", "true"],      "env": {        "ACCESS_TOKEN": "<https://thegraph.market JWT Access Token>"      }    }  }}

Logs are available under logs/mcp.log and logs/mcp-server-token-api.log inside the folder of your Claude configuration file.

ENOENT

Error dialog in Claude Desktop showing 'ENOENT' system error, indicating the npx/bunx command wasn't found in the system path.

Try to use the full path of the command instead:

  • Run which npx or which bunx in the command line interface to get the path of the command.
  • Replace npx or bunx in the configuration file with the full path (e.g. /home/user/bin/bunx).

Server disconnected

Connection error notification in Claude Desktop displaying 'Server disconnected' message.

Double-check your API key. Otherwise, look in your navigator if https://token-api.mcp.thegraph.com/sse is reachable.