get_base_token_balance
Return ERC-20 balanceOf for a holder on Base mainnet via eth_call.
This record as markdown: /tools/io-github-davidmosiah-delx-mcp-a2a/get-base-token-balance.md
What get_base_token_balance does on Delx Mcp A2a
AI agents call get_base_token_balance to retrieve information from Delx Mcp A2a without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
block | string | — | |
token | string | Yes | ERC-20 contract |
address | string | Yes | Holder address |
decimals | integer | — |
Parameters from the server's own tool schema.
Why get_base_token_balance is rated Low
This tool retrieves token balance information without modifying state, executing arbitrary code, or moving funds. It is a pure data retrieval operation that queries blockchain state read-only. While it relates to financial assets (tokens), it does not move money or create financial obligations—it merely reads balances, making it a Read category risk.
From the tool's definition Tool name 'get_base_token_balance' and description 'Return ERC-20 balanceOf for a holder on Base mainnet via eth_call' indicate a read-only query.
Risk signalsHandles credentials or secrets (token)
Attacks that exploit this kind of access
The rule that runs get_base_token_balance safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Delx Mcp A2a, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For get_base_token_balance, this is the rule to start with:
get_base_token_balance is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Delx Mcp A2a, apply this rule, and every get_base_token_balance call is checked against it from then on.
Questions about get_base_token_balance
Return ERC-20 balanceOf for a holder on Base mainnet via eth_call. It is categorised as a Read tool in the Delx Mcp A2a MCP Server, which means it retrieves data without modifying state.
get_base_token_balance accepts 4 parameters: block, token, address, decimals. Required: token, address. The full parameter table on this page comes from the server's own tool schema.
Register the Delx Mcp A2a MCP server in PolicyLayer and add a rule for get_base_token_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 Delx Mcp A2a. Nothing to install.
get_base_token_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_base_token_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_base_token_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_base_token_balance is provided by the Delx Mcp A2a MCP server (https://api.delx.ai/v1/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
More on Delx Mcp A2a, and thousands of servers like it.
This server
Across the catalogue