create_api_version

Create a new version of an API

SERVERPostman SOURCEdelano/postman-mcp-server

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/delano-postman-mcp-server/create-api-version.md

WHAT IT DOES

What create_api_version does on Postman

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

RISK

Why create_api_version is rated Medium

This tool creates a new API version within Postman, which is a reversible write operation with no destructive effects. It modifies the API metadata by adding a version record but does not execute external operations, delete data, or trigger financial transactions. Low severity because misuse typically results in clutter rather than severe damage.

From the tool's definition Tool name 'create_api_version' and description 'Create a new version of an API' indicate data creation; sibling tools like 'create_api', 'create_collection', and 'create_environment' are clearly Write operations; versioning is a reversible operation in…

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs create_api_version safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Postman, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For create_api_version, this is the rule to start with:

create_api_version Rate-limited

create_api_version 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": {
    "create_api_version": {
      "limits": [
        {
          "counter": "create_api_version_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about create_api_version

What does the create_api_version tool do? +

Create a new version of an API. It is categorised as a Write tool in the Postman 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_api_version? +

Register the Postman MCP server in PolicyLayer and add a rule for create_api_version: 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 Postman. Nothing to install.

What risk level is create_api_version? +

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

Can I rate-limit create_api_version? +

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

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

create_api_version is provided by the Postman MCP server (delano/postman-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

What create_api_version does on Postman

Why create_api_version is rated Medium

The rule that runs create_api_version safely

Questions about create_api_version

More on Postman, and thousands of servers like it.