--- description: Set up Postman MCP Server. Configure API key, verify connection, select workspace. allowed-tools: mcp__postman__* --- # First-Run Configuration Walk the user through Postman setup for Claude Code. Validate everything works before they use other commands. ## Workflow ### Step 1: Check MCP Connection Verify the Postman MCP Server is available by calling `getAuthenticatedUser`. **If it works:** Skip to Step 3 (workspace verification). **If it fails or tools aren't available:** Proceed to Step 2. ### Step 2: Configure API Key ``` Let's set up Postman for Claude Code. 1. Go to: https://postman.postman.co/settings/me/api-keys 2. Click "Generate API Key" 3. Name it "Claude Code" 4. Copy the key (starts with PMAK-) Then set it as an environment variable: export POSTMAN_API_KEY=PMAK-your-key-here Add it to your shell profile (~/.zshrc or ~/.bashrc) to persist across sessions. ``` Wait for the user to confirm they've set the key. Then verify with `getAuthenticatedUser`. **If 401:** "API key was rejected. Check for extra spaces or generate a new one at https://postman.postman.co/settings/me/api-keys" **If timeout:** "Can't reach the Postman MCP Server. Check your network and https://status.postman.com" ### Step 3: Workspace Verification After successful connection: 1. Call `getWorkspaces` to list workspaces 2. Call `getCollections` with the first workspace ID to count collections 3. Call `getAllSpecs` with the workspace ID to count specs Present: ``` Connected as: Your workspaces: - My Workspace (personal) — 12 collections, 3 specs - Team APIs (team) — 8 collections, 5 specs You're all set. ``` If workspace is empty: ``` Your workspace is empty. You can: /postman:sync — Push a local OpenAPI spec to Postman /postman:search — Search the public Postman API Network ``` ### Step 4: Suggest First Command Based on what the user has: **Has collections:** ``` Try one of these: /postman:search — Find APIs across your workspace /postman:test — Run collection tests /postman:codegen — Generate client code from a collection ``` **Has specs but no collections:** ``` Try this: /postman:sync — Generate a collection from one of your specs ``` **Empty workspace:** ``` Try this: /postman:sync — Import an OpenAPI spec from your project ``` ## Error Handling - **MCP tools not available:** "The Postman MCP Server isn't loaded. Make sure the plugin is installed and restart Claude Code." - **API key not set:** Walk through Step 2 above. - **401 Unauthorized:** "Your API key was rejected. Generate a new one at https://postman.postman.co/settings/me/api-keys" - **Network timeout:** "Can't reach the Postman MCP Server. Check your network and https://status.postman.com for outages." - **Plan limitations:** "Some features (team workspaces, monitors) require a paid Postman plan. Core commands work on all plans."