Overwing
Verified · overwing.aiMCP server by frod27 · updated · ★ 0 · 57 downloads a week
Guardrails for LLM output: pass / fail / review verdicts and one recommended action. Hosted or npm. Overwing is published by overwing.ai from its verified domain in the official MCP Registry.
Last commit 8 days ago
MIT: permissive, fine for commercial use
Clear description, published package or server URL, original repository
No risky patterns in the files we checked
What you need
| Setting | Needed | What it is |
|---|---|---|
OVERWING_API_KEYEnvironment variable, secret | Optional | Overwing organization key (ow_live_...). Optional: evaluate and atlas_lookup work without it, 10 a day each. Needed for higher limits, rule sets and Tower setup. Get one at https://overwing.ai/login or POST https://overwing.ai/api/v1/signup |
OVERWING_AGENT_KEYEnvironment variable, secret | Optional | Optional Overwing Tower agent key (ow_agent_...). Without it, the tower_create_agent tool mints one for the session |
OVERWING_BASE_URLEnvironment variable | Optional | Override the API base URL for self-hosted deployments (default https://overwing.ai) |
AuthorizationHeader, secret | Optional | Optional. "Bearer ow_live_..." lifts the free limits; evaluate and atlas_lookup work without it, 10 a day each |
From the publisher's entry in the official MCP Registry. Required settings are already in the install config below as placeholders.
Install Overwing
Built from the published package, never by AIclaude mcp add overwing -- npx -y overwing-mcpRun in your terminal. Add --scope user to use it in every project.
{
"mcpServers": {
"overwing": {
"command": "npx",
"args": [
"-y",
"overwing-mcp"
]
}
}
}Settings, Developer, Edit config. Paste into claude_desktop_config.json and restart.
{
"mcpServers": {
"overwing": {
"command": "npx",
"args": [
"-y",
"overwing-mcp"
]
}
}
}Add to ~/.cursor/mcp.json (all projects) or .cursor/mcp.json (this project).
{
"servers": {
"overwing": {
"command": "npx",
"args": [
"-y",
"overwing-mcp"
]
}
}
}Add to .vscode/mcp.json. VS Code uses "servers", not "mcpServers".
codex mcp add overwing -- npx -y overwing-mcp{
"mcpServers": {
"overwing": {
"command": "npx",
"args": [
"-y",
"overwing-mcp"
]
}
}
}Add to ~/.gemini/config/mcp_config.json (all projects) or .agents/mcp_config.json (this project).
gemini mcp add overwing npx -y overwing-mcpGemini CLI was replaced by Antigravity CLI in June 2026 and remains only for enterprise licences and paid API keys.
MCP servers run with your permissions and can read what you give them access to. Some need an API key: check the README and add it under env in the overwing block.
Security check
ANo download-and-run commands, hidden instructions or signs of sending keys out were found.
Checked automatically: README.md, package.json. This looks for known risky patterns and is not a full audit. How grades work
Alternatives to Overwing
All alternatives →Mock, record/replay, verify and chaos-test any HTTP, REST, gRPC or LLM dependency over MCP.
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Overwing: common questions
How do I install Overwing?
In Claude Code run claude mcp add overwing -- npx -y overwing-mcp. For Claude Desktop, Cursor and VS Code, paste the config shown above and restart. See the install guides.
Is Overwing the official server?
Overwing is published by overwing.ai from its verified domain in the official MCP Registry.
Is Overwing free?
The code is published under the MIT licence. The service it connects to may have its own pricing.
Is Overwing safe to use?
It scores 84 of 100. Grades: maintenance A, licence A, quality C. Security check: grade A, no risky patterns found in the files checked. Review the code before you install. How grades work.
What are alternatives to Overwing?
Similar MCP servers: mockserver, XcodeBuildMCP, Repowise, SmartBear MCP.
Does Overwing work with ChatGPT?
Yes. Add its server URL in ChatGPT as a custom connector. See MCP in ChatGPT.
