Import a wallet from a mnemonic seed phrase
AI agents use import_wallet_from_mnemonic 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.
Importing a wallet from a mnemonic seed phrase involves loading private key material derived from the seed phrase into the system. This is a Write operation (creating/registering a wallet), but the severity is critical because a mnemonic phrase grants full control over all funds and assets in that wallet.
From the tool's definition Import a wallet from a mnemonic seed phrase
Documented attack patterns abuse exactly the kind of access import_wallet_from_mnemonic 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 import_wallet_from_mnemonic:
{
"version": "1",
"default": "deny",
"tools": {
"import_wallet_from_mnemonic": {
"limits": [
{
"counter": "import_wallet_from_mnemonic_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
} import_wallet_from_mnemonic 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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Import a wallet from a mnemonic seed phrase. 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 import_wallet_from_mnemonic: 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.
import_wallet_from_mnemonic 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 import_wallet_from_mnemonic 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 import_wallet_from_mnemonic. 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.
import_wallet_from_mnemonic 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.