WebMCP Inspector icon

WebMCP Inspector

by shitij agrawal

v3.0.0 Updated Feb 22, 2026 1.4MiB
CWS
815
Users
★ 5.00
5 reviews
#4903
of 43K
developer
#373 of 3.1K
Recently updated

Description

WebMCP Inspector is a developer-focused Chrome extension that makes WebMCP tooling visible and actionable inside the browser. It detects WebMCP APIs on the current page, lists available tools, shows input schemas, and lets you execute tools instantly with JSON inputs. You can also use AI chat (Gemini, OpenAI, Anthropic, or Ollama) to run multi-step tool workflows faster. Why install it: Build and debug WebMCP integrations without guesswork Validate tool schemas and arguments before production use Quickly reproduce and diagnose tool execution issues Refresh and inspect dynamically registered tools in real time Speed up testing with both manual and AI-assisted execution in one UI If you’re building WebMCP-enabled apps, this extension gives you a practical inspector and test bench directly in Chrome.
WebMCP Inspector screenshot 1WebMCP Inspector screenshot 2WebMCP Inspector screenshot 3

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Permissions (5)

Permissions

activeTab Can access the current tab when you click the extension scripting Can inject scripts into web pages sidePanel storage Can store data locally in your browser unlimitedStorage

Details

Version 3.0.0
Updated Feb 22, 2026
Size 1.4MiB
First Seen Mar 21, 2026