MCP server and open registry for HTTP 402 agent payments: decode L402, x402 and MPP challenges and choose a payment rail.
Setup
Choose your client, copy the config, then fill in any required environment variables.
Local
claude mcp add 402mcp-org-http-402-agent-payment-regist -- npx -y @402mcp/mcp~/.codex/config.toml
[mcp_servers.402mcp-org-http-402-agent-payment-regist]
command = "npx"
args = ["-y", "@402mcp/mcp"]
# codex mcp add 402mcp-org-http-402-agent-payment-regist -- npx -y @402mcp/mcp~/.cursor/mcp.json
{
"mcpServers": {
"402mcp-org-http-402-agent-payment-regist": {
"command": "npx",
"args": [
"-y",
"@402mcp/mcp"
]
}
}
}.vscode/mcp.json
{
"servers": {
"402mcp-org-http-402-agent-payment-regist": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@402mcp/mcp"
]
}
}
}~/.gemini/settings.json
{
"mcpServers": {
"402mcp-org-http-402-agent-payment-regist": {
"command": "npx",
"args": [
"-y",
"@402mcp/mcp"
]
}
}
}claude_desktop_config.json
{
"mcpServers": {
"402mcp-org-http-402-agent-payment-regist": {
"command": "npx",
"args": [
"-y",
"@402mcp/mcp"
]
}
}
}.trae/mcp.json
{
"mcpServers": {
"402mcp-org-http-402-agent-payment-regist": {
"command": "npx",
"args": [
"-y",
"@402mcp/mcp"
]
}
}
}Remote
claude mcp add --transport http 402mcp-org-http-402-agent-payment-regist https://402mcp.org/api/v1/mcp~/.codex/config.toml
[mcp_servers.402mcp-org-http-402-agent-payment-regist]
url = "https://402mcp.org/api/v1/mcp"
# codex mcp add 402mcp-org-http-402-agent-payment-regist --url https://402mcp.org/api/v1/mcp~/.cursor/mcp.json
{
"mcpServers": {
"402mcp-org-http-402-agent-payment-regist": {
"url": "https://402mcp.org/api/v1/mcp"
}
}
}.vscode/mcp.json
{
"servers": {
"402mcp-org-http-402-agent-payment-regist": {
"type": "http",
"url": "https://402mcp.org/api/v1/mcp"
}
}
}~/.gemini/settings.json
{
"mcpServers": {
"402mcp-org-http-402-agent-payment-regist": {
"httpUrl": "https://402mcp.org/api/v1/mcp"
}
}
}claude_desktop_config.json · Customize › Connectors › Add custom connector
{
"mcpServers": {
"402mcp-org-http-402-agent-payment-regist": {
"command": "npx",
"args": [
"-y",
"mcp-remote",
"https://402mcp.org/api/v1/mcp"
]
}
}
}.trae/mcp.json
{
"mcpServers": {
"402mcp-org-http-402-agent-payment-regist": {
"url": "https://402mcp.org/api/v1/mcp"
}
}
}