MCP server builder with OHarness
- Plugin
- Developer tools
Design and build your own MCP servers. OHarness works with MCP server builder out of the box.
What you get
| Plugin | 3 skills. |
| Published by | Anthropic |
| Pinned source | anthropics/claude-plugins-official@a0b04d9 |
How it signs in
The plugin itself needs no sign-in: its skills and agents are text the agent reads when they are relevant.
Try it
Once MCP server builder is connected, a first prompt to see it work:
Use MCP server builder to look into the bug in this branch and propose a fix with a test.
Adding it
- Download OHarness for the Mac, or install the CLI anywhere Node runs.
- In the composer, open the + menu and find MCP server builder under Plugins.
- Install it. The skills are there for every session in the project from then on.
Links
Common questions
Does OHarness work with MCP server builder?
Yes. MCP server builder ships in OHarness as a plugin, so it is in the menu on first launch with nothing to look up.
What does the MCP server builder plugin install?
3 skills. It is installed from anthropics/claude-plugins-official at commit a0b04d9, the exact version OHarness was checked against, rather than whatever is on a branch today.
Is OHarness affiliated with Anthropic?
No. OHarness works with MCP server builder through its public plugin; MCP server builder and its logo belong to Anthropic.
More in developer tools
Chrome DevTools · Code simplifier · Context7 · DeepWiki · Feature development · Frontend design
MCP server builder and its logo belong to Anthropic. Listed because OHarness works with it, not because Anthropic endorses OHarness.
Use MCP server builder from OHarness
The same MCP server builder tools in every session, whichever of the model providers is underneath.