getPostalCode
Returns details for a Canadian postal code, given as A1A1A1 or A1A 1A1. Searching by city and province instead of a postal code requires premium.
This record as markdown: /tools/com-api-ninjas-mcp/getpostalcode.md
What getPostalCode does on API Ninjas
AI agents call getPostalCode to retrieve information from API Ninjas without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
city | string | — | Full name of the city to search (case-sensitive). Premium only. |
province | string | — | 2-letter abbreviation of the province (e.g., ON, BC, QC). Premium only. |
postal_code | string | — | The postal code to look up. Accepts Canadian postal codes in 6 characters (A1A1A1) or 7 characters with a space (A1A 1A1). The space will be automatically norma |
Parameters from the server's own tool schema.
Why getPostalCode is rated Low
Even though getPostalCode only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.
Attacks that exploit this kind of access
The rule that runs getPostalCode safely
PolicyLayer is an MCP gateway: it sits between your AI agents and API Ninjas, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For getPostalCode, this is the rule to start with:
getPostalCode 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 API Ninjas, apply this rule, and every getPostalCode call is checked against it from then on.
Questions about getPostalCode
Returns details for a Canadian postal code, given as A1A1A1 or A1A 1A1. Searching by city and province instead of a postal code requires premium. It is categorised as a Read tool in the API Ninjas MCP Server, which means it retrieves data without modifying state.
getPostalCode accepts 3 parameters: city, province, postal_code. The full parameter table on this page comes from the server's own tool schema.
Register the API Ninjas MCP server in PolicyLayer and add a rule for getPostalCode: 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 API Ninjas. Nothing to install.
getPostalCode 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 getPostalCode 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 getPostalCode. 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.
getPostalCode is provided by the API Ninjas MCP server (https://mcp.api-ninjas.com/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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