FastMCP 3.0
HasMCP
Playground by Natoma
Click Playground
ToolYour
MCPForge.tech
Composio.dev
Open-source MCP playground to test and introspect servers

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Website, pricing, platforms and company facts side by side.
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MCP
MCP Playground
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| Website | mcpplayground.io | opalstack.com |
| Pricing | — | |
| Listed in |
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When comparing MCP Playground and Opalstack, you can also consider the following products.
The fast, Pythonic way to build MCP servers and clients
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Convert your API into MCP Server in seconds. No-code, GUI based MCP Framework that creates, deploys and serves MCP servers with built-in auth, realtime logs and telemetry. Make your product available in LLMs today!
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Simple, fast way to find and try any MCP server.
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Click Playground — Retro gaming tools for Minecraft and PVP | CPS Test
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Remote MCP harness for Cursor and Claude: plan, run SEO/security/ship checks, verify until pass. Same API key and credits as REST.
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Turn OpenAPI Specs Into Secure Production-Ready MCP Servers.
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