Used to create your Coinbase MPC wallet address. The newly created wallet cannot be used directly; the user must first deposit USDC. The transfer after creation requires user confirmation
AI agents use create_coinbase_mpc_wallet to create or update resources in Sperax Ecosystem Crypto & DeFI MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Sperax Ecosystem Crypto & DeFI MCP Server environment.
This is fundamentally a Write operation—it creates a new wallet resource. While wallet creation could be associated with financial systems (Coinbase MPC), the tool itself does not move money or commit financial obligations; it merely provisions a wallet container. The user must explicitly deposit funds and confirm transfers afterward.
From the tool's definition Tool creates a new wallet address ('create your Coinbase MPC wallet address'), which is a write operation that creates a new resource in the system.
Documented attack patterns abuse exactly the kind of access create_coinbase_mpc_wallet gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Sperax Ecosystem Crypto & DeFI MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for create_coinbase_mpc_wallet:
{
"version": "1",
"default": "deny",
"tools": {
"create_coinbase_mpc_wallet": {
"limits": [
{
"counter": "create_coinbase_mpc_wallet_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}create_coinbase_mpc_wallet stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
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Used to create your Coinbase MPC wallet address. The newly created wallet cannot be used directly; the user must first deposit USDC. The transfer after creation requires user confirmation. It is categorised as a Write tool in the Sperax Ecosystem Crypto & DeFI MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Sperax Ecosystem Crypto & DeFI MCP Server MCP server in PolicyLayer and add a rule for create_coinbase_mpc_wallet: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Sperax Ecosystem Crypto & DeFI MCP Server. Nothing to install.
create_coinbase_mpc_wallet is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the create_coinbase_mpc_wallet rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for create_coinbase_mpc_wallet. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
create_coinbase_mpc_wallet is provided by the Sperax Ecosystem Crypto & DeFI MCP Server MCP server (sperax/sperax-crypto-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Sperax Ecosystem Crypto & DeFI MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
1318 Sperax Ecosystem Crypto & DeFI MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.