exchange_create_contract · Anypoint MCP Server MCP

WHAT IT DOES

What exchange_create_contract does on Anypoint MCP Server

AI agents use exchange_create_contract to create or update resources in Anypoint MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Anypoint MCP Server environment.

WHY IT NEEDS A POLICY

Why exchange_create_contract needs a policy

Creating a contract is a reversible write operation that establishes API access permissions and integrations. While not destructive (can be revoked), it modifies system state by adding a new binding. The high severity reflects that unauthorized contract creation could grant unintended API access, expose credentials, or create billing/usage obligations without proper approval.

From the tool's definition Tool name 'exchange_create_contract' and description states it 'Request access to an Exchange API by creating an application contract' — this creates a new contractual relationship/binding between an application and an API asset.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

exchange_create_contract Rate-limited

exchange_create_contract stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "exchange_create_contract": {
      "limits": [
        {
          "counter": "exchange_create_contract_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

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Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Anypoint MCP Server, so you can run agents against it safely.

FAQ

Questions about exchange_create_contract

What does the exchange_create_contract tool do? +

Request access to an Exchange API by creating an application contract. Call exchange_list_assets to find the asset and api_manager_list_apis for the API instance ID. It is categorised as a Write tool in the Anypoint MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on exchange_create_contract? +

Register the Anypoint MCP Server MCP server in PolicyLayer and add a rule for exchange_create_contract: 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 Anypoint MCP Server. Nothing to install.

What risk level is exchange_create_contract? +

exchange_create_contract is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit exchange_create_contract? +

Yes. Add a rate_limit block to the exchange_create_contract 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 exchange_create_contract completely? +

Set action: deny in the PolicyLayer policy for exchange_create_contract. 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 exchange_create_contract? +

exchange_create_contract is provided by the Anypoint MCP Server MCP server (sravannerella/mulesoft-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.