x402 Universal Payer

Indexed by io.github.nirholas

About

Pay any x402 endpoint on the open web: auto-paying bridge with Bazaar discovery and spend caps.

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 varsMCP_BRIDGE_EVM_PRIVATE_KEY MCP_BRIDGE_SVM_PRIVATE_KEY MCP_BRIDGE_MAX_PRICE_PER_CALL_ATOMIC MCP_BRIDGE_MAX_TOTAL_ATOMIC MCP_BRIDGE_ALLOWED_PAYTO MCP_BRIDGE_ALLOWED_HOSTS MCP_BRIDGE_ALLOW_HTTP MCP_BRIDGE_DISCOVER_LIMIT MCP_BRIDGE_BAZAAR_URL MCP_BRIDGE_BATCH_DEPOSIT_MULTIPLIER MCP_BRIDGE_MAX_DEPOSIT_ATOMIC X402_MCP_BRIDGE_CHANNELS_DIR RPC_URL_8453

Claude Code

claude mcp add --env MCP_BRIDGE_EVM_PRIVATE_KEY= --env MCP_BRIDGE_SVM_PRIVATE_KEY= --env MCP_BRIDGE_MAX_PRICE_PER_CALL_ATOMIC= --env MCP_BRIDGE_MAX_TOTAL_ATOMIC= --env MCP_BRIDGE_ALLOWED_PAYTO= --env MCP_BRIDGE_ALLOWED_HOSTS= --env MCP_BRIDGE_ALLOW_HTTP= --env MCP_BRIDGE_DISCOVER_LIMIT= --env MCP_BRIDGE_BAZAAR_URL= --env MCP_BRIDGE_BATCH_DEPOSIT_MULTIPLIER= --env MCP_BRIDGE_MAX_DEPOSIT_ATOMIC= --env X402_MCP_BRIDGE_CHANNELS_DIR= --env RPC_URL_8453= x402-bridge -- npx @three-ws/mcp-bridge

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":"x402-bridge","command":"npx","args":["@three-ws/mcp-bridge"],"env":{"MCP_BRIDGE_EVM_PRIVATE_KEY":"","MCP_BRIDGE_SVM_PRIVATE_KEY":"","MCP_BRIDGE_MAX_PRICE_PER_CALL_ATOMIC":"","MCP_BRIDGE_MAX_TOTAL_ATOMIC":"","MCP_BRIDGE_ALLOWED_PAYTO":"","MCP_BRIDGE_ALLOWED_HOSTS":"","MCP_BRIDGE_ALLOW_HTTP":"","MCP_BRIDGE_DISCOVER_LIMIT":"","MCP_BRIDGE_BAZAAR_URL":"","MCP_BRIDGE_BATCH_DEPOSIT_MULTIPLIER":"","MCP_BRIDGE_MAX_DEPOSIT_ATOMIC":"","X402_MCP_BRIDGE_CHANNELS_DIR":"","RPC_URL_8453":""}}'

JSON

{
  "mcpServers": {
    "x402-bridge": {
      "command": "npx",
      "args": [
        "@three-ws/mcp-bridge"
      ],
      "env": {
        "MCP_BRIDGE_EVM_PRIVATE_KEY": "",
        "MCP_BRIDGE_SVM_PRIVATE_KEY": "",
        "MCP_BRIDGE_MAX_PRICE_PER_CALL_ATOMIC": "",
        "MCP_BRIDGE_MAX_TOTAL_ATOMIC": "",
        "MCP_BRIDGE_ALLOWED_PAYTO": "",
        "MCP_BRIDGE_ALLOWED_HOSTS": "",
        "MCP_BRIDGE_ALLOW_HTTP": "",
        "MCP_BRIDGE_DISCOVER_LIMIT": "",
        "MCP_BRIDGE_BAZAAR_URL": "",
        "MCP_BRIDGE_BATCH_DEPOSIT_MULTIPLIER": "",
        "MCP_BRIDGE_MAX_DEPOSIT_ATOMIC": "",
        "X402_MCP_BRIDGE_CHANNELS_DIR": "",
        "RPC_URL_8453": ""
      }
    }
  }
}

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