Bridge MCP Server

by krystiangwio.github.krystiangw/agenticpayv0.0.1

x402 micropayments stack for MCP: pay-per-tool-call USDC settlement on Solana via a self-hostable facilitator, with SDK, CLI and paywall middleware.

3Node.jsstdioofficial registry

context tax

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security

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freshness

Active15d ago

Install Bridge MCP server

claude mcp add bridge-krystiangw -e AGENTICPAY_BRIDGE_KEYPAIR='<agenticpay-bridge-keypair>' -e AGENTICPAY_BRIDGE_TOOLS='<agenticpay-bridge-tools>' -- npx -y @agenticpay/mcp-bridge

{
  "mcpServers": {
    "bridge-krystiangw": {
      "command": "npx",
      "args": [
        "-y",
        "@agenticpay/mcp-bridge"
      ],
      "env": {
        "AGENTICPAY_BRIDGE_KEYPAIR": "<agenticpay-bridge-keypair>",
        "AGENTICPAY_BRIDGE_TOOLS": "<agenticpay-bridge-tools>"
      }
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).

{
  "mcpServers": {
    "bridge-krystiangw": {
      "command": "npx",
      "args": [
        "-y",
        "@agenticpay/mcp-bridge"
      ],
      "env": {
        "AGENTICPAY_BRIDGE_KEYPAIR": "<agenticpay-bridge-keypair>",
        "AGENTICPAY_BRIDGE_TOOLS": "<agenticpay-bridge-tools>"
      }
    }
  }
}

Settings → Developer → Edit Config (claude_desktop_config.json), then restart.

{
  "servers": {
    "bridge-krystiangw": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@agenticpay/mcp-bridge"
      ],
      "env": {
        "AGENTICPAY_BRIDGE_KEYPAIR": "<agenticpay-bridge-keypair>",
        "AGENTICPAY_BRIDGE_TOOLS": "<agenticpay-bridge-tools>"
      }
    }
  }
}

Add to .vscode/mcp.json in your workspace.

{
  "mcpServers": {
    "bridge-krystiangw": {
      "command": "npx",
      "args": [
        "-y",
        "@agenticpay/mcp-bridge"
      ],
      "env": {
        "AGENTICPAY_BRIDGE_KEYPAIR": "<agenticpay-bridge-keypair>",
        "AGENTICPAY_BRIDGE_TOOLS": "<agenticpay-bridge-tools>"
      }
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json.

Configuration

Variable	Required	Secret	Description
AGENTICPAY_BRIDGE_KEYPAIR	yes	yes	Solana keypair as 64-byte JSON array (the format `solana-keygen new` writes). The bridge signs each x402 payment with this keypair.
AGENTICPAY_BRIDGE_TOOLS	yes	—	JSON array of paid tool definitions. Each entry: { name, description, url, inputSchema, headers? }
AGENTICPAY_BRIDGE_NETWORK	—	—	CAIP-2 network identifier. Devnet: solana:EtWTRABZaYq6iMfeYKouRu166VU2xqa1
AGENTICPAY_BRIDGE_RPC	—	—	Solana JSON-RPC URL

Freshness

Active — last maintenance signal 15d ago. The newest of the signals below sets the band.

Last commit (default branch)
2026-09-24 · 15d ago · GitHub
Latest release
no data · GitHub
Package published
no data · npm/PyPI
Registry entry updated
2026-05-01 · 5mo ago · official registry · v0.0.1

FAQ

›How do I install the Bridge MCP server in Claude Code?

Run: claude mcp add bridge-krystiangw -e AGENTICPAY_BRIDGE_KEYPAIR='<agenticpay-bridge-keypair>' -e AGENTICPAY_BRIDGE_TOOLS='<agenticpay-bridge-tools>' -- npx -y @agenticpay/mcp-bridge. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.

›Does Bridge require an API key?

Yes. It expects AGENTICPAY_BRIDGE_KEYPAIR, AGENTICPAY_BRIDGE_TOOLS, of which 1 is a secret.

›Can I use Bridge as a remote (hosted) MCP server?

No hosted endpoint is published; it runs locally over stdio.

›Is Bridge in the official MCP registry?

Yes, as io.github.krystiangw/agenticpay.