# list_environments List all environments in a workspace. If workspace not specified, lists environments in Agent View of the PolicyLayer registry record for `list_environments`. HTML page: https://policylayer.com/tools/delano-postman-mcp-server/list-environments ## Facts - Tool: `list_environments` - 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: Read (Low risk) - Registry record: grade F, identity unverified - Server rate-limited: no - Parameters: 0 - Recommended policy verdict: Allowed ## Example call (MCP tools/call, JSON-RPC 2.0) ```json { "jsonrpc": "2.0", "id": 1, "method": "tools/call", "params": { "name": "list_environments", "arguments": {} } } ``` ## Why list_environments is rated Low This tool retrieves and enumerates environment data from Postman without modifying, creating, or deleting anything. It is a non-destructive read operation with minimal security impact unless the workspace contains highly sensitive configuration data. Classified as Read with low severity due to the informational nature of the operation. From the tool's own definition: "Tool name is 'list_environments' and description states 'List all environments in a workspace' — a query/retrieval operation with no side effects." ## Use case AI agents call list_environments to retrieve information from Postman without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere. ## Recommended policy (PolicyLayer) Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Postman: ```json { "version": "1", "default": "deny", "tools": { "list_environments": {} } } ``` ## 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