io.github.e2xlabs
stablecoinx-mcp
StablecoinX
Drive a StablecoinX business account — auth, API keys, sessions, paymaster, and webhooks.
stdioofficialservice
Package Details
@stablecoinx/mcp
Transportstdio
Runtimenpx
Package Arguments
Positional
Position 0
setupRun setup to install the bundled skill and register this MCP via `claude mcp add` (optional; for MCP clients that provide an `mcp add` CLI).Environment Variables
SCX_API_URL
Default:
https://api.harness.stablecoinx.comRequired
API base URL.
SCX_CHAIN_ID
Default:
84532Required
EVM chain ID for the smart account. The StablecoinX harness supports three testnets: 84532 (Base Sepolia, default), 421614 (Arbitrum Sepolia), 11155111 (Ethereum Sepolia).
THIRDWEB_CLIENT_ID
Default:
830ece55cd210c34f351166a85edbd0fRequired
Public thirdweb client ID (publishable, not a secret). Must match the harness dashboard client ID.
THIRDWEB_ORIGIN
Default:
https://business.harness.stablecoinx.comRequired
Origin header sent on outbound thirdweb calls; must be a domain allowed for THIRDWEB_CLIENT_ID.
SCX_STATE_PASSPHRASE
RequiredSecret
Passphrase used to encrypt the local state file (JWT / API key / session key) at rest. Pick any string.