# update_api

Update an existing API

Agent View of the PolicyLayer registry record for `update_api`. HTML page: https://policylayer.com/tools/delano-postman-mcp-server/update-api

## Facts

- Tool: `update_api`
- Server: Postman (`delano/postman-mcp-server`) — https://policylayer.com/tools/delano-postman-mcp-server.md
- Homepage: https://github.com/delano/postman-mcp-server
- Risk category: Write (Medium risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Rate-limited

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "update_api",
    "arguments": {}
  }
}
```

## Why update_api is rated Medium

The tool modifies an existing API resource, which is a reversible write operation. It does not delete data (Destructive), does not execute code or trigger external operations (Execute), does not move money (Financial), and does not merely retrieve data (Read).

From the tool's own definition: "Tool name is 'update_api' and description states 'Update an existing API', indicating modification of existing data in a reversible manner."

## Use case

AI agents use update_api 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.

## Recommended policy (PolicyLayer)

Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Postman:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "update_api": {
      "limits": [
        {
          "counter": "update_api_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}
```

## Other tools on Postman (97)

- `delete_api` — Destructive — https://policylayer.com/tools/delano-postman-mcp-server/delete-api.md
- `delete_api_comment` — Destructive — https://policylayer.com/tools/delano-postman-mcp-server/delete-api-comment.md
- `delete_api_version` — Destructive — https://policylayer.com/tools/delano-postman-mcp-server/delete-api-version.md
- `delete_collection` — Destructive — https://policylayer.com/tools/delano-postman-mcp-server/delete-collection.md
- `delete_collection_access_key` — Destructive — https://policylayer.com/tools/delano-postman-mcp-server/delete-collection-access-key.md
- `delete_collection_folder` — Destructive — https://policylayer.com/tools/delano-postman-mcp-server/delete-collection-folder.md
- `delete_collection_request` — Destructive — https://policylayer.com/tools/delano-postman-mcp-server/delete-collection-request.md
- `delete_collection_response` — Destructive — https://policylayer.com/tools/delano-postman-mcp-server/delete-collection-response.md
- `delete_environment` — Destructive — https://policylayer.com/tools/delano-postman-mcp-server/delete-environment.md
- `delete_mock` — Destructive — https://policylayer.com/tools/delano-postman-mcp-server/delete-mock.md
- `delete_monitor` — Destructive — https://policylayer.com/tools/delano-postman-mcp-server/delete-monitor.md
- `delete_schema_file` — Destructive — https://policylayer.com/tools/delano-postman-mcp-server/delete-schema-file.md
- `delete_server_response` — Destructive — https://policylayer.com/tools/delano-postman-mcp-server/delete-server-response.md
- `remove_pan_element` — Destructive — https://policylayer.com/tools/delano-postman-mcp-server/remove-pan-element.md
- `create_webhook` — Execute — https://policylayer.com/tools/delano-postman-mcp-server/create-webhook.md
- `get_accounts` — Read — https://policylayer.com/tools/delano-postman-mcp-server/get-accounts.md
- `get_api` — Read — https://policylayer.com/tools/delano-postman-mcp-server/get-api.md
- `get_api_collection` — Read — https://policylayer.com/tools/delano-postman-mcp-server/get-api-collection.md
- `get_api_comments` — Read — https://policylayer.com/tools/delano-postman-mcp-server/get-api-comments.md
- `get_api_schema` — Read — https://policylayer.com/tools/delano-postman-mcp-server/get-api-schema.md
- `get_api_schema_files` — Read — https://policylayer.com/tools/delano-postman-mcp-server/get-api-schema-files.md
- `get_api_tags` — Read — https://policylayer.com/tools/delano-postman-mcp-server/get-api-tags.md
- `get_api_version` — Read — https://policylayer.com/tools/delano-postman-mcp-server/get-api-version.md
- `get_api_versions` — Read — https://policylayer.com/tools/delano-postman-mcp-server/get-api-versions.md
- `get_authenticated_user` — Read — https://policylayer.com/tools/delano-postman-mcp-server/get-authenticated-user.md
- `get_collection` — Read — https://policylayer.com/tools/delano-postman-mcp-server/get-collection.md
- `get_collection_folder` — Read — https://policylayer.com/tools/delano-postman-mcp-server/get-collection-folder.md
- `get_collection_forks` — Read — https://policylayer.com/tools/delano-postman-mcp-server/get-collection-forks.md
- `get_collection_request` — Read — https://policylayer.com/tools/delano-postman-mcp-server/get-collection-request.md
- `get_collection_response` — Read — https://policylayer.com/tools/delano-postman-mcp-server/get-collection-response.md
- …and 67 more: https://policylayer.com/tools/delano-postman-mcp-server.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=delano-postman-mcp-server · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/delano-postman-mcp-server