Medium Risk

create_access_key

Create a new access key for an IAM user. Args: user_name: The name of the IAM user confirmed: Must be true to confirm this write operation Returns: Dictionary containing the new access key details (SecretAccessKey is redacted)

Part of the AWS IAM MCP Server MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.

AI agents use create_access_key to create or modify resources in AWS IAM MCP Server. Write operations carry medium risk because an autonomous agent could trigger bulk unintended modifications. Rate limits prevent a single agent session from making hundreds of changes in rapid succession. Argument validation ensures the agent passes expected values.

Without a policy, an AI agent could call create_access_key repeatedly, creating or modifying resources faster than any human could review. Intercept's rate limiting ensures write operations happen at a controlled pace, and argument validation catches malformed or unexpected inputs before they reach AWS IAM MCP Server.

Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.

aws-iam-mcp-server.yaml
tools:
  create_access_key:
    rules:
      - action: allow
        rate_limit:
          max: 30
          window: 60

See the full AWS IAM MCP Server policy for all 29 tools.

Tool Name create_access_key
Category Write
Risk Level Medium

View all 29 tools →

Agents calling write-class tools like create_access_key have been implicated in these attack patterns. Read the full case and prevention policy for each:

Browse the full MCP Attack Database →

Other tools in the Write risk category across the catalogue. The same policy patterns (rate-limit, validate) apply to each.

What does the create_access_key tool do? +

Create a new access key for an IAM user. Args: user_name: The name of the IAM user confirmed: Must be true to confirm this write operation Returns: Dictionary containing the new access key details (SecretAccessKey is redacted). It is categorised as a Write tool in the AWS IAM 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 create_access_key? +

Add a rule in your Intercept YAML policy under the tools section for create_access_key. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the AWS IAM MCP Server MCP server.

What risk level is create_access_key? +

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

Can I rate-limit create_access_key? +

Yes. Add a rate_limit block to the create_access_key rule in your Intercept 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 create_access_key completely? +

Set action: deny in the Intercept policy for create_access_key. 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 create_access_key? +

create_access_key is provided by the AWS IAM MCP Server MCP server (awslabs.iam-mcp-server). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Let agents act without letting them run wild.

Deterministic policy on every MCP tool call. Per-identity grants. Full audit log.

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