StablecoinX merchant tools: auth, payments, paymaster, webhooks, floYsh sites and vault settings.
Connect Runs on your machine
claude mcp add stablecoinx-mcp -e SCX_STATE_PASSPHRASE=<SCX_STATE_PASSPHRASE> -e SCX_STATE_DIR=<SCX_STATE_DIR> -- npx -y @stablecoinx/[email protected]{
"mcpServers": {
"stablecoinx-mcp": {
"command": "npx",
"args": [
"-y",
"@stablecoinx/[email protected]"
],
"env": {
"SCX_STATE_PASSPHRASE": "<SCX_STATE_PASSPHRASE>",
"SCX_STATE_DIR": "<SCX_STATE_DIR>"
}
}
}
}{
"mcpServers": {
"stablecoinx-mcp": {
"command": "npx",
"args": [
"-y",
"@stablecoinx/[email protected]"
],
"env": {
"SCX_STATE_PASSPHRASE": "<SCX_STATE_PASSPHRASE>",
"SCX_STATE_DIR": "<SCX_STATE_DIR>"
}
}
}
}{
"servers": {
"stablecoinx-mcp": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@stablecoinx/[email protected]"
],
"env": {
"SCX_STATE_PASSPHRASE": "<SCX_STATE_PASSPHRASE>",
"SCX_STATE_DIR": "<SCX_STATE_DIR>"
}
}
}
}Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.
Tools
This server runs locally, so its tools are listed by your MCP client once it starts.
Environment variables
| Name | Description |
|---|---|
SCX_STATE_PASSPHRASERequired, secret | Passphrase used to encrypt the local state file (JWT / API key / session key) at rest. Pick any string. The harness endpoint, thirdweb client, origin and login chain are baked into the package — this is the only required input. |
SCX_STATE_DIROptional | Optional. Directory for the encrypted local state file. Defaults to %APPDATA%/stablecoinx-mcp (Windows) or $XDG_CONFIG_HOME/stablecoinx-mcp. |
Details
| Package | @stablecoinx/[email protected] (NPM, stdio) |
| First published | 11 Nov 2026 |
| Last updated | 11 Nov 2026 |
| Registry name | io.github.e2xlabs/stablecoinx-mcp |
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