Check the balance of 0G native tokens for any wallet address. If no address is provided, checks the balance of the wallet configured in WALLET_ADDRESS environment variable. Returns balance in both 0G tokens and wei formats, along with explorer link.
AI agents call get_balance to retrieve information from 0g Chain without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool purely retrieves and queries balance data without side effects. It does not create, modify, delete, or transfer data. Even in a blockchain context where financial assets are involved, reading a balance is a non-destructive query operation. The tool has minimal blast radius as misuse would only expose read access to public blockchain data.
From the tool's definition Tool name is 'get_balance' and description states it 'Check[s] the balance of 0G native tokens for any wallet address' with no mention of modifications, deletions, or state changes. Returns balance information and explorer link only.
Attacks that exploit this kind of access
Check the balance of 0G native tokens for any wallet address. If no address is provided, checks the balance of the wallet configured in WALLET_ADDRESS environment variable. Returns balance in both 0G tokens and wei formats, along with explorer link. It is categorised as a Read tool in the 0g Chain MCP Server, which means it retrieves data without modifying state.
Register the 0g Chain MCP server in PolicyLayer and add a rule for get_balance: 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 0g Chain. Nothing to install.
get_balance is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the get_balance 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 get_balance. 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.
get_balance is provided by the 0g Chain MCP server (tairon-ai/0g-chain-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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