swagger_create_or_update_api

SERVERSmartBear MCP SOURCESmartBear/smartbear-mcp

Medium RISK CLASS

Category Write

Parameters 33 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/smartbear-mcp/swagger-create-or-update-api.md

WHAT IT DOES

What swagger_create_or_update_api does on SmartBear MCP

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

Parameter	Type	Required	Description
`owner`	string	Yes	Organization name (owner of the API)
`apiName`	string	Yes	API name
`definition`	string	Yes	API definition content (OpenAPI/AsyncAPI specification in JSON or YAML format). Format is automatically detected. API is created with fixed values: version 1.0.

Parameters from the server's own tool schema.

RISK

Why swagger_create_or_update_api is rated Medium

This tool creates new resources or modifies existing API definitions in a registry, which are reversible write operations. While it doesn't delete data or execute arbitrary code, it does persist new or modified API specifications that could affect downstream systems consuming those APIs.

From the tool's definition Tool description explicitly states 'Create a new API or update an existing API in SwaggerHub Registry for Swagger Studio.' The parameters include 'owner' to specify the organization where the API will be created/updated.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs swagger_create_or_update_api safely

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

swagger_create_or_update_api Rate-limited

swagger_create_or_update_api 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": {
    "swagger_create_or_update_api": {
      "limits": [
        {
          "counter": "swagger_create_or_update_api_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 SmartBear MCP, apply this rule, and every swagger_create_or_update_api call is checked against it from then on.

FAQ

Questions about swagger_create_or_update_api

What does the swagger_create_or_update_api tool do? +

Create a new API or update an existing API in SwaggerHub Registry for Swagger Studio. The API specification type (OpenAPI, AsyncAPI) is automatically detected from the definition content. APIs are always created with fixed values: version 1.0.0, private visibility, and automock disabled (these values cannot be changed). Returns HTTP 201 for creation, HTTP 200 for update. Response includes 'operation' field indicating whether it was a 'create' or 'update' operation along with API details and SwaggerHub URL. Parameters: - owner (string) *required*: Organization name (owner of the API) - apiName (string) *required*: API name - definition (string) *required*: API definition content (OpenAPI/AsyncAPI specification in JSON or YAML format). Format is automatically detected. API is created with fixed values: version 1.0.0, private visibility, automock disabled, and no project assignment. It is categorised as a Write tool in the SmartBear MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

What parameters does swagger_create_or_update_api accept? +

swagger_create_or_update_api accepts 3 parameters: owner, apiName, definition. Required: owner, apiName, definition. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on swagger_create_or_update_api? +

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

What risk level is swagger_create_or_update_api? +

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

Can I rate-limit swagger_create_or_update_api? +

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

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

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

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