Get credit rating history for an NZX company. Shows S&P, Moody's, Fitch, AM Best ratings with upgrades, downgrades, and outlook changes. ~20 NZX companies have credit ratings.
AI agents call get_credit_ratings to retrieve information from NZXplorer MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
year | string | — | Year or range (e.g. "2024" or "2020-2024") |
limit | number | — | Max results |
action | string | — | Filter by action: affirmed, upgraded, downgraded, assigned, withdrawn |
agency | string | — | Filter by agency: "S&P", "Moody's", "Fitch", "AM Best" |
ticker | string | Yes | NZX ticker symbol (e.g. "ANZ", "MEL", "SPK") |
Parameters from the server's own tool schema.
This tool retrieves and queries historical credit rating data for NZX companies. It has no side effects, does not modify any data, and does not execute operations or move financial instruments. It is a straightforward data read operation similar to other tools on the server (get_company_detail, get_director_detail, etc.).
From the tool's definition Tool name 'get_credit_ratings' and description 'Get credit rating history' indicates a retrieval operation.
Attacks that exploit this kind of access
Get credit rating history for an NZX company. Shows S&P, Moody's, Fitch, AM Best ratings with upgrades, downgrades, and outlook changes. ~20 NZX companies have credit ratings. It is categorised as a Read tool in the NZXplorer MCP Server MCP Server, which means it retrieves data without modifying state.
get_credit_ratings accepts 5 parameters: year, limit, action, agency, ticker. Required: ticker. The full parameter table on this page comes from the server's own tool schema.
Register the NZXplorer MCP Server MCP server in PolicyLayer and add a rule for get_credit_ratings: 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 NZXplorer MCP Server. Nothing to install.
get_credit_ratings 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_credit_ratings 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_credit_ratings. 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_credit_ratings is provided by the NZXplorer MCP Server MCP server (mambaventures/nzxplorer-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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