Plugin runs on your own machine — the client starts it, so there is no endpoint to ping. 79 installs a week from npm. Last commit 16 Jul 2026.
Circulara Observe MCP plugin - meters your AI agents' token spend and carbon, free tier.
Today is the operative word: we check Plugin every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
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 plugin -- npx -y @circulara/plugin
{
"mcpServers": {
"plugin": {
"args": [
"-y",
"@circulara/plugin"
],
"command": "npx"
}
}
}
[mcp_servers.plugin]
command = "npx"
args = ["-y", "@circulara/plugin"]
{
"mcpServers": {
"plugin": {
"args": [
"-y",
"@circulara/plugin"
],
"command": "npx"
}
}
}
{
"mcpServers": {
"plugin": {
"args": [
"-y",
"@circulara/plugin"
],
"command": "npx"
}
}
}
This one needs environment variables set before it will start:
CIRCULARA_BACKEND_URL (Your Circulara Observe backend URL - copy from the Connect page after signing in at https://plugin.circulara.ai), CIRCULARA_TENANT_ID (Your workspace ID - from the Connect page), CIRCULARA_TOKEN (Your signed workspace token - from the Connect page (keep secret)), CIRCULARA_SEAT_ID (Your seat ID - from the Connect page), CIRCULARA_USER_ID (Your email / identity - from the Connect page).
The author declared them in the registry entry; get the values from the project itself.
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Answers built from our own checks of this server.