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TAMASH — WebMCP Tester

Postman for WebMCP · AI Agent · Flow Runner · v2.0.0
⚠ Chrome flags required before using TAMASH
1 Open chrome://flags/#enable-experimental-web-platform-features → set Experimental Web Platform features to Enabled → Relaunch Chrome.
Required: activates document.modelContext so TAMASH can see WebMCP tools.
2 Optional: chrome://flags/#webmcp-for-testing → set WebMCP for testing to Enabled.
3 Optional: chrome://flags/#devtools-web-mcp → adds a WebMCP panel to Chrome DevTools.
Quick Links
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User Guide & Flows

Chrome flag setup, VegCart quick-start, 12 downloadable flows, and full feature reference.

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VegCart Demo App

16 live WebMCP tools. Open in Chrome, click the TAMASH icon — tools appear immediately.

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12 Ready-to-Run Flows

Download VegCart flows and import into the Flow tab. Run full workflows without AI.

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Privacy Policy

What data TAMASH accesses, stores, and when it is transmitted to third-party providers.

How to start in 3 steps
1

Enable the Chrome flags above and relaunch Chrome

Without the Experimental Web Platform features flag, document.modelContext is not available and TAMASH finds no tools on any page.

2

Open VegCart (or your own WebMCP-enabled app)

Navigate to vibetestq.com/testweb/vegcart/ — a demo app with 16 registered WebMCP tools across products, cart, checkout, wishlist, users, and orders.

3

Click the TAMASH toolbar icon to open the side panel

Use 🔧 Tool Tester to inspect and call tools manually, 🤖 Agent to run AI-powered goals, or 🔀 Flow to replay saved sequences without any AI. Configure your AI provider in the Settings tab.

Extension Info
NameTamash — WebMCP Tester
Version2.0.0
RequiresChrome 146+ · Experimental Web Platform features flag enabled
ProvidersOpenAI · Anthropic · Google Gemini · Ollama (cloud or local)
Remote MCPJira · GitHub (opt-in, configured in the Settings tab)
Supportsupport@vibetestq.com
Homepagevibetestq.com/tamash