Payment security firewall for x402 micropayments — advisory, non-custodial.
Setup
Choose your client, copy the config, then fill in any required environment variables.
claude mcp add tollwarden -- npx -y tollwarden~/.codex/config.toml
[mcp_servers.tollwarden]
command = "npx"
args = ["-y", "tollwarden"]
# codex mcp add tollwarden -- npx -y tollwarden~/.cursor/mcp.json
{
"mcpServers": {
"tollwarden": {
"command": "npx",
"args": [
"-y",
"tollwarden"
]
}
}
}.vscode/mcp.json
{
"servers": {
"tollwarden": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"tollwarden"
]
}
}
}~/.gemini/settings.json
{
"mcpServers": {
"tollwarden": {
"command": "npx",
"args": [
"-y",
"tollwarden"
]
}
}
}claude_desktop_config.json
{
"mcpServers": {
"tollwarden": {
"command": "npx",
"args": [
"-y",
"tollwarden"
]
}
}
}.trae/mcp.json
{
"mcpServers": {
"tollwarden": {
"command": "npx",
"args": [
"-y",
"tollwarden"
]
}
}
}