Get coin objects for an address (useful for gas estimation and token queries)
AI agents call iota_coins to retrieve information from Iota Agent without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves blockchain data (coin objects associated with an address) for query purposes. It exhibits classic Read behavior: no side effects, no state changes, no execution of code or transactions, and no financial operations. The low severity reflects that coin balance information is typically public on-chain data, and misuse would only reveal information rather than cause harm.
From the tool's definition Tool description states 'Get coin objects for an address' with purposes of 'gas estimation and token queries' - purely informational retrieval operations with no modification or execution capability.
Documented attack patterns abuse exactly the kind of access iota_coins gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Iota Agent, and nothing reaches the server without passing your rules. This is the rule we recommend for iota_coins:
{
"version": "1",
"default": "deny",
"tools": {
"iota_coins": {}
}
}iota_coins is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get coin objects for an address (useful for gas estimation and token queries). It is categorised as a Read tool in the Iota Agent MCP Server, which means it retrieves data without modifying state.
Register the Iota Agent MCP server in PolicyLayer and add a rule for iota_coins: 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 Iota Agent. Nothing to install.
iota_coins 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 iota_coins 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 iota_coins. 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.
iota_coins is provided by the Iota Agent MCP server (scottcjn/iota-agent-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 18 Iota Agent tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
18 Iota Agent tools catalogued and risk-classified — across an index of 42,500+ MCP servers.