Description

The official interactive developer tool for testing and debugging MCP servers: call tools, read resources, run prompts, and watch raw protocol traffic, with Web, CLI, and TUI interfaces.

AI-native score

How ready this product is for agents to use, on a 0–100 scale across four weighted dimensions. Security is one of them, so a high score is not a substitute for your own security or vendor-risk review. How is this scored?

Unrated. Only 38% of the scored decision fields are researched, so the grade is held until more are confirmed. The breakdown below shows what's been scored.

Component	Raw	Weight	Contribution
Integration	2/10	35%	7.0
Trust	2/6	30%	10.0
Portability	4/4	20%	20.0
Security	0/4	15%	0.0

Signals that fired

Integration: Command-line interface (+1) ; Agent skill (+1)
Trust: Sandbox environment (yes, +2)
Portability: Open standards (+1) ; No proprietary-SDK lock-in (+1) ; Self-hostable (+1) ; Open source (+1)

Signals not researched

These gaps cover the fields used in the AI-native score.

Integration surfaces: llms.txt, Headless signup, MCP servers, Native connectors, API specs, Developer kits
Trust & data policy: Multi-factor authentication, Zero data retention, No generative AI training, Hard budget caps, Data export, Data import, Standard protocol access, Documented provider swap
Security & compliance: Compliance certifications, Access controls

Trust & data policy

Sandbox environment: Yes
Open standards: Yes
No proprietary-SDK lock-in: Yes
Self-hostable: Yes
Open source: Yes
Source code: https://github.com/modelcontextprotocol/inspector

Not yet researched Multi-factor authentication, Zero data retention, No generative AI training, Hard budget caps, Data export, Data import, Standard protocol access, Documented provider swap

What it does

Capabilities

MCP Server Testing and Debugging

Interactively call tools, read resources, run prompts, and inspect raw MCP protocol traffic.

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Jobs to be done

Test and debug an MCP server

Verify an MCP server's tools, resources, and prompts behave correctly.

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Integration surfaces

How an agent connects to this product and finds its documentation. The largest dimension of the AI-native score (35%).

WebMCP: No

Command-line interfaces

mcp-inspector

Agent skills

Packaged skills an agent can load to operate this product.

mcpdo

Confirmed absent Agent2Agent (A2A) servers

Not yet researched llms.txt, Headless signup, MCP servers, Native connectors, API specs, Developer kits

Offers

No offers recorded.

Reviews

No approved reviews yet.

RSS: approved reviews

Catalog activity

Track how this entry changes as proposals are opened and merged.

RSS: merged changes · RSS: open proposals

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