Syncpen runs on your own machine — the client starts it, so there is no endpoint to ping. 69 installs a week from npm. Last commit 24 Aug 2026.
The markdown workspace your AI can read, search, and suggest edits in — every change signed.
Today is the operative word: we check Syncpen 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 syncpen-mcp -e 'SYNCPEN_API_KEY=<SYNCPEN_API_KEY>' -- npx -y syncpen-mcp
{
"mcpServers": {
"syncpen-mcp": {
"command": "npx",
"args": [
"-y",
"syncpen-mcp"
],
"env": {
"SYNCPEN_API_KEY": "<SYNCPEN_API_KEY>"
}
}
}
}
[mcp_servers.syncpen-mcp]
command = "npx"
args = ["-y", "syncpen-mcp"]
env = { SYNCPEN_API_KEY = "<SYNCPEN_API_KEY>" }
{
"mcpServers": {
"syncpen-mcp": {
"command": "npx",
"args": [
"-y",
"syncpen-mcp"
],
"env": {
"SYNCPEN_API_KEY": "<SYNCPEN_API_KEY>"
}
}
}
}
{
"servers": {
"syncpen-mcp": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"syncpen-mcp"
],
"env": {
"SYNCPEN_API_KEY": "<SYNCPEN_API_KEY>"
}
}
}
}
Put your own value in place of
<SYNCPEN_API_KEY> (Your Syncpen API key (starts with sp_). Create one at https://www.syncpen.io/settings/api-keys).
The author’s registry entry marks it as required.
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