receipt_lookup
Find mutation receipts by id, date range or affected URI — closes the receipts loop
This record as markdown: /tools/novalux12-spotify-mcp/receipt-lookup.md
What receipt_lookup does on Spotify
AI agents call receipt_lookup to retrieve information from Spotify without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why receipt_lookup is rated Low
Queries historical mutation records; read-only access to receipt data without side effects.
From the tool's definition Find mutation receipts by id, date range or affected URI
Attacks that exploit this kind of access
The rule that runs receipt_lookup safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Spotify, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For receipt_lookup, this is the rule to start with:
receipt_lookup 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 Spotify, apply this rule, and every receipt_lookup call is checked against it from then on.
Questions about receipt_lookup
Find mutation receipts by id, date range or affected URI — closes the receipts loop. It is categorised as a Read tool in the Spotify MCP Server, which means it retrieves data without modifying state.
Register the Spotify MCP server in PolicyLayer and add a rule for receipt_lookup: 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 Spotify. Nothing to install.
receipt_lookup 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 receipt_lookup 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 receipt_lookup. 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.
receipt_lookup is provided by the Spotify MCP server (@novalux12/spotify-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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