OneSource MCP

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30 tools for blockchain data and live chain queries

Use this server

Add it to your MCP client. The catalogue lists this config verbatim from its source — it does not run, download, or vouch for the server. Review the command before you run it.

Transportstdio (runs a local command)

Env varsX402_PRIVATE_KEY ONESOURCE_API_KEY

Claude Code

claude mcp add --env X402_PRIVATE_KEY= --env ONESOURCE_API_KEY= mcp -- npx @one-source/mcp

Cursor

Add to Cursor

If the button doesn't open Cursor, use the JSON below — Cursor accepts the same mcpServers config.

VS Code

code --add-mcp '{"name":"mcp","command":"npx","args":["@one-source/mcp"],"env":{"X402_PRIVATE_KEY":"","ONESOURCE_API_KEY":""}}'

JSON

{
  "mcpServers": {
    "mcp": {
      "command": "npx",
      "args": [
        "@one-source/mcp"
      ],
      "env": {
        "X402_PRIVATE_KEY": "",
        "ONESOURCE_API_KEY": ""
      }
    }
  }
}

Environment variables are listed by name only — fill in your own values. Entries never carry secrets.