Create and manage USDC virtual payment cards through the Clawallex API. For developers integrating blockchain-based payment infrastructure into applications.
io.github.Clawallex-Tech/clawallex-mcp
Local install
STDIO
2 required env vars
How models use it and what it is built for.
Create and manage USDC virtual payment cards through the Clawallex API. For developers integrating blockchain-based payment infrastructure into applications.
Local install — runs as a subprocess.
Configuration this server reads at startup.
Clawallex API Key
Clawallex API Secret for HMAC-SHA256 signing
Where to find authoritative docs and source for Clawallex.
Paste any of these into Agent Studio after connecting Clawallex.
Common questions about connecting and running Clawallex.
What is Clawallex and what can I do with this MCP server?
Clawallex is a payment API that lets you issue and manage USDC virtual cards. This MCP server connects your AI assistant to Clawallex, enabling you to programmatically create cards, check balances, and manage transactions through natural language.
How do I authenticate with Clawallex?
You need two credentials: CLAWALLEX_API_KEY and CLAWALLEX_API_SECRET. The server uses these to sign requests with HMAC-SHA256. Set both as environment variables before running the MCP server.
How do I install and run this MCP server?
Install via npm with `npx @clawallex/mcp-server@1.0.9`. Configure your CLAWALLEX_API_KEY and CLAWALLEX_API_SECRET environment variables, then connect it to your MCP client over stdio transport.
What payment network does this support?
Clawallex issues virtual cards denominated in USDC, a stablecoin on blockchain networks. This enables fast, borderless payments without traditional banking intermediaries.
Where can I find detailed API documentation for Clawallex?
The MCP server wraps the Clawallex payment API. Refer to the official Clawallex documentation for endpoint details, card limits, and transaction types supported beyond what this MCP server exposes.
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