Cline MCP client
Does your MCP server work in Cline?
The open-source autonomous coding agent for your IDE. Cline does not render MCP apps, and handles tool results its own way. Our catalog records the details below. Test your server against it with MCPJam.
npx @mcpjam/inspector@latestWhat Cline supports
MCP apps
Cline does not render MCP apps. Tool results come back as plain content.
Tool-result images
The model sees images returned via direct content, but not via embedded resources or linked resources.
Display
No display-mode data recorded.
MCP extensions
Advertises no MCP extensions in our catalog.
Emulation model
MCPJam emulates Cline using anthropic/claude-haiku-4.5, so tests reflect how this host actually drives your tools.
How we know
Probed: Verified by running against the client. Last reviewed 2026-07-08.
Cline capability questions
Live support matrix for MCP sampling, per client.
Live support matrix for MCP elicitation, per client.
Live support matrix for MCP roots, per client.
The full Can I Use matrix on caniuse.dev.
How to test your MCP server against Cline
Run npx @mcpjam/inspector@latest, connect the server config you already use, and select Cline. MCPJam drives your server the way this host does, including its model (anthropic/claude-haiku-4.5), so you see the tool calls it actually makes instead of guessing from a bug report.
From there, Trace shows every step from prompt to response, the OAuth Debugger shows where authorization breaks, and Evals score whether the model picks the right tool across realistic requests. All of it runs locally, free and open source.
Frequently asked questions
No. Our catalog records Cline as not rendering MCP apps. (Probed, last reviewed 2026-07-08.)
The model sees images returned via direct content, but not via embedded resources or linked resources.
Run npx @mcpjam/inspector@latest, connect your server, and select Cline. MCPJam emulates the host with anthropic/claude-haiku-4.5 so you can watch the real tool calls, trace them, and score them with evals.
It comes from MCPJam's host-compat catalog (the same data behind caniuse.dev), recorded as "probed" and last reviewed 2026-07-08. Verified by running against the client.
See how your server behaves in Cline.
One command, your existing server config, this host's real behavior in the loop.
Open source · no credit card · ~2 min