Postmancer vs Playwright MCP Server

A side-by-side comparison of two Developer Tools servers — tools, transport, auth, maintenance, and copy-paste config for each.

	Postmancer A standalone MCP server for API testing and management — let AI assistants call REST APIs in natural language. Unverified stdio (local) No auth Stale TypeScript	Playwright MCP Server Microsoft's official browser-automation MCP using Playwright's accessibility tree (no vision model). Verified stdio (local) No auth TypeScript
Category	Developer Tools	Developer Tools
Language	TypeScript	TypeScript
Transport	stdio (local)	stdio (local)
Auth	None	None
GitHub stars	28	24k
Last commit	10 months ago	21 days ago
Verified
Actively maintained
Install	`npm install -g postmancer`	`npx -y @playwright/mcp@latest`
Repo	Open	Open

Verdict

Pick Postmancer if you prefer its approach (a standalone mcp server for api testing and management — let ai assistants call rest apis in natural language).

Pick Playwright MCP Server if you want the official, vendor-maintained server, and you prefer the more popular, battle-tested option.

Add Postmancer

Install / run

npm install -g postmancer

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "postmancer": {
      "command": "npx",
      "args": [
        "-y",
        "postmancer"
      ],
      "env": {
        "LOG_LEVEL": "info"
      }
    }
  }
}

Add Playwright MCP Server

Install / run

npx -y @playwright/mcp@latest

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "playwright-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@playwright/mcp@latest"
      ]
    }
  }
}

FAQ

Postmancer or Playwright MCP Server — which is better?

Pick Postmancer if you prefer its approach (a standalone mcp server for api testing and management — let ai assistants call rest apis in natural language). Pick Playwright MCP Server if you want the official, vendor-maintained server, and you prefer the more popular, battle-tested option.

Can I use both Postmancer and Playwright MCP Server?

Yes — MCP clients let you enable multiple servers at once. Add both configs to your client's mcpServers and use whichever tool fits the task.

Do Postmancer and Playwright MCP Server work with Claude, Cursor and Windsurf?

Both do. Copy the per-client config below into Claude Desktop, Cursor, or Windsurf.

View Postmancer →View Playwright MCP Server →More comparisons →