Claim available GAS for an account. Requires account WIF.
AI agents use claim_gas to commit financial operations through Neo N3 MCP Server — usually the final step of a payment, billing, or trading workflow. A call moves real money.
Claiming GAS is a financial operation that moves/commits cryptocurrency assets to an account on the Neo N3 blockchain. It uses a private key (WIF) to authorize a blockchain transaction, making it a financial action with high severity since misuse could drain claimable GAS or expose private key material.
From the tool's definition 'Claim available GAS for an account. Requires account WIF.' - claims GAS (a cryptocurrency token on the Neo N3 blockchain) to an account, constituting a financial operation involving blockchain assets.
Attacks that exploit this kind of access
Claim available GAS for an account. Requires account WIF. It is categorised as a Financial tool in the Neo N3 MCP Server MCP Server, which means it involves financial transactions. Block by default and require explicit approval.
Register the Neo N3 MCP Server MCP server in PolicyLayer and add a rule for claim_gas: 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 Neo N3 MCP Server. Nothing to install.
claim_gas is a Financial tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the claim_gas 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 claim_gas. 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.
claim_gas is provided by the Neo N3 MCP Server MCP server (r3e-network/neo-n3-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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