Sezzlee OpenAPI runs on your own machine — the client starts it, so there is no endpoint to ping. 337 installs a week from npm. Last commit 11 Oct 2026.
Expose an OpenAPI document to agents as a search-first tool catalog over your existing API.
Nothing serious here today
Today is the operative word: we check Sezzlee OpenAPI every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
Connect this server
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add openapi -- npx -y @sezzlee/openapi-mcp{
"mcpServers": {
"openapi": {
"args": [
"-y",
"@sezzlee/openapi-mcp"
],
"command": "npx"
}
}
}[mcp_servers.openapi]
command = "npx"
args = ["-y", "@sezzlee/openapi-mcp"]{
"mcpServers": {
"openapi": {
"args": [
"-y",
"@sezzlee/openapi-mcp"
],
"command": "npx"
}
}
}{
"mcpServers": {
"openapi": {
"args": [
"-y",
"@sezzlee/openapi-mcp"
],
"command": "npx"
}
}
}This one needs environment variables set before it will start:
SEZZLEE_OPENAPI_CONFIG (Path to the server config file).
The author declared them in the registry entry; get the values from the project itself.
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Sezzlee OpenAPI — questions
Answers built from our own checks of this server.