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Visual testing tool for MCP servers

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**Is your feature request related to a problem? Please describe.** I want to make sure that my resource subscriptions are working properly. Because so many clients don't support resource subscriptions...

enhancement
spec compliance

**Describe the bug** When using Streamable HTTP transport, the oauth flow is not triggered when the server returns 401. The `sse` transport supports this and the browser correctly initiates the...

bug
authorization

Fixes #237 ## Motivation and Context I want to be able to use a container version of the inspector rather than via npx. ## How Has This Been Tested? I...

enhancement
waiting on submitter

Fixed the Streamable HTTP transport to properly propagate authorization headers by including transport options in the StreamableHTTPClientTransport initialization. ## Motivation and Context Bug referenced in [369](https://github.com/modelcontextprotocol/inspector/issues/369) The Streamable HTTP transport...

**Describe the bug** The process does not exit when the inspector is used in CLI mode to inspect an MCP server launched with an `npx @example_server` command. This is a...

bug

### 🐞 Structured form not rendering for complex input in v0.10.2 (regression) **Affected Version:** MCP Inspector v0.10.2 **Previous Version:** v0.9.0 ![Image](https://github.com/user-attachments/assets/491e3990-5897-4fb5-8eee-feab5ad504fb) ![Image](https://github.com/user-attachments/assets/f3594210-b9b3-4fe9-893d-17c216da59bd) **Tool:** `order.add` **Transport:** SSE **Type:** Regression --- ###...

bug
tools

## Motivation and Context Opening as a draft for feedback on this general approach. There's a few configs that need to get adjusted or cleaned up here and obviously the...

## Motivation and Context This adds support for [enum](https://json-schema.org/understanding-json-schema/reference/enum) on `string` property. ## How Has This Been Tested? | Before | After | | -------- | ------- | | |...

enhancement
waiting on spec

This PR implements the feature requested by #330 ## Motivation and Context When using the Inspector in `CLI mode`, there's currently no way to configure Inspector-specific settings like `MCP_SERVER_REQUEST_TIMEOUT`. This...

enhancement
waiting on submitter
cli

Hi there, This pull request shares a security update on inspector. We also have an entry for inspector in our directory, MseeP.ai, where we provide regular security and trust updates...