searchSortCodes

Finds UK bank branches and their sort codes by bank name, city or postcode. To look up a single sort code that is already known use /sortcode.

SERVERAPI Ninjas SOURCEhttps://mcp.api-ninjas.com/mcp

Low RISK CLASS

Category Read

Parameters 40 required

Recommended Allowedsee the rule below

Registry record Grade D, identity unverified Pull the record →

This record as markdown: /tools/com-api-ninjas-mcp/searchsortcodes.md

WHAT IT DOES

What searchSortCodes does on API Ninjas

AI agents call searchSortCodes 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	—	City name to search for branches. Premium only.
`offset`	integer	—	Number of results to offset for pagination. Available for annual subscriptions only.
`postcode`	string	—	UK postcode (full or outward only, e.g. E14) to search for branches. Premium only.
`bank_name`	string	—	Bank name to search for. At least one of bank_name, city, or postcode is required. Premium only.

Parameters from the server's own tool schema.

RISK

Why searchSortCodes is rated Low

Even though searchSortCodes 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

RECOMMENDED RULE

The rule that runs searchSortCodes 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 searchSortCodes, this is the rule to start with:

searchSortCodes Allowed

searchSortCodes is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "searchSortCodes": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect API Ninjas, apply this rule, and every searchSortCodes call is checked against it from then on.

FAQ

Questions about searchSortCodes

What does the searchSortCodes tool do? +

Finds UK bank branches and their sort codes by bank name, city or postcode. To look up a single sort code that is already known use /sortcode. It is categorised as a Read tool in the API Ninjas MCP Server, which means it retrieves data without modifying state.

What parameters does searchSortCodes accept? +

searchSortCodes accepts 4 parameters: city, offset, postcode, bank_name. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on searchSortCodes? +

Register the API Ninjas MCP server in PolicyLayer and add a rule for searchSortCodes: 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.

What risk level is searchSortCodes? +

searchSortCodes is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit searchSortCodes? +

Yes. Add a rate_limit block to the searchSortCodes 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.

How do I block searchSortCodes completely? +

Set action: deny in the PolicyLayer policy for searchSortCodes. 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.

What MCP server provides searchSortCodes? +

searchSortCodes 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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