AI agents call anthropic_list_models to retrieve information from UnClick without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
api_key | string | Yes |
Parameters from the server's own tool schema.
This tool queries and returns metadata about available Claude models from the Anthropic API. It performs a read-only operation with no side effects, matching the 'Read' category profile. The severity is low because listing model information poses minimal risk; misuse cannot cause data loss, financial harm, or unintended execution of code. Confidence is high (0.95) because the intent and behavior are unambiguous.
From the tool's definition Tool name indicates 'list' operation; description states 'List all Claude models available via the Anthropic API' — a pure retrieval action with no modification, deletion, or execution of external operations.
Risk signalsHandles credentials or secrets (api_key)
Attacks that exploit this kind of access
List all Claude models available via the Anthropic API. It is categorised as a Read tool in the UnClick MCP Server, which means it retrieves data without modifying state.
anthropic_list_models accepts 1 parameter: api_key. Required: api_key. The full parameter table on this page comes from the server's own tool schema.
Register the UnClick MCP server in PolicyLayer and add a rule for anthropic_list_models: 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 UnClick. Nothing to install.
anthropic_list_models 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 anthropic_list_models 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 anthropic_list_models. 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.
anthropic_list_models is provided by the UnClick MCP server (@unclick/mcp-server). 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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