Verify-before-pay client for the SendCheck x402 API — free address pre-check + the signed service card (ES256 JWS over payTo + per-route maxPrice). Zero deps.
接入配置
选择客户端，复制配置，再按项目文档补齐环境变量。
claude mcp add --transport http sendcheck-evm-address-verification-x402 https://api.pennyforge.org/mcp~/.codex/config.toml
[mcp_servers.sendcheck-evm-address-verification-x402]
url = "https://api.pennyforge.org/mcp"
# codex mcp add sendcheck-evm-address-verification-x402 --url https://api.pennyforge.org/mcp~/.cursor/mcp.json
{
"mcpServers": {
"sendcheck-evm-address-verification-x402": {
"url": "https://api.pennyforge.org/mcp"
}
}
}.vscode/mcp.json
{
"servers": {
"sendcheck-evm-address-verification-x402": {
"type": "http",
"url": "https://api.pennyforge.org/mcp"
}
}
}~/.gemini/settings.json
{
"mcpServers": {
"sendcheck-evm-address-verification-x402": {
"httpUrl": "https://api.pennyforge.org/mcp"
}
}
}claude_desktop_config.json · Customize › Connectors › Add custom connector
{
"mcpServers": {
"sendcheck-evm-address-verification-x402": {
"command": "npx",
"args": [
"-y",
"mcp-remote",
"https://api.pennyforge.org/mcp"
]
}
}
}.trae/mcp.json
{
"mcpServers": {
"sendcheck-evm-address-verification-x402": {
"url": "https://api.pennyforge.org/mcp"
}
}
}