AI agents call yelp_get_business 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 | — | |
business_id | string | Yes |
Parameters from the server's own tool schema.
This tool queries and retrieves publicly available business information from Yelp. It performs a read-only operation that does not modify, execute code, delete data, or involve financial transactions. The blast radius of misuse is minimal—an agent could retrieve business details it shouldn't see, but cannot alter data or trigger external actions.
From the tool's definition Tool name 'yelp_get_business' and description 'Get details for a Yelp business by ID' indicate a retrieval operation with no side effects.
Risk signalsHandles credentials or secrets (api_key)
Attacks that exploit this kind of access
Get details for a Yelp business by ID. It is categorised as a Read tool in the UnClick MCP Server, which means it retrieves data without modifying state.
yelp_get_business accepts 2 parameters: api_key, business_id. Required: business_id. 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 yelp_get_business: 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.
yelp_get_business 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 yelp_get_business 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 yelp_get_business. 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.
yelp_get_business 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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