MCP Testing Tool – Developer Feedback

We are exploring the development of a dedicated testing tool for Model Context Protocol (MCP) servers and tools.

This short survey aims to understand the challenges developers face when testing MCP tools and agent integrations.

Your feedback will help shape the design of an open-source MCP testing toolkit.

1. What is your primary role?

AI/LLM Engineer

Full Stack Developer

Open Source Contributor

2. How familiar are you with MCP (Model Context Protocol)?

I actively build MCP servers/tools

I have experimented with MCP

I only know about it conceptually

3. Which MCP SDK do you primarily use?

4. How do you currently test your MCP tools?

Manual testing using CLI

MCP Inspector / Postman / Insomnia / Hoppscotch / Other tools

Integration inside an AI agent

I don’t test them formally

5. What challenges do you face when testing MCP tools?

Example: debugging tool calls, schema mismatches, testing agent workflows, etc.

6. Which areas are most difficult when developing MCP tools?

Testing tool inputs/outputs

Debugging tool execution

Testing multi-step workflows

Validating tool schemas

Simulating LLM tool calls

Integration with AI agents

7. Which features would you find useful in an MCP testing tool?

Interactive tool playground (run tools easily)

Scenario-based testing (multi-step workflows)

Tool schema validation

Agent interaction simulator

Tool response snapshot testing

Error/edge-case testing

Tool coverage analysis

Debugging visualization for tool calls

8. How likely would you be to use a dedicated MCP testing tool

1 — Not likely 5 — Very likely

9. What feature would make an MCP testing tool truly valuable for you?

Thank you for taking the time to complete this survey! 🙏

This survey is anonymous and is not intended to collect any personal information. The responses will only be used to understand developer pain points and help guide the development of an open-source MCP testing tool.