Chartone runs on your own machine — the client starts it, so there is no endpoint to ping. 37 installs a week from npm. Last commit 7 May 2026.
Render themed charts as hosted URLs. Embed in markdown, emails, and Slack. Hosted MCP, zero setup.
Today is the operative word: we check Chartone 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 chartone -- npx -y @chartone/mcp
{
"mcpServers": {
"chartone": {
"args": [
"-y",
"@chartone/mcp"
],
"command": "npx"
}
}
}
[mcp_servers.chartone]
command = "npx"
args = ["-y", "@chartone/mcp"]
{
"mcpServers": {
"chartone": {
"args": [
"-y",
"@chartone/mcp"
],
"command": "npx"
}
}
}
{
"mcpServers": {
"chartone": {
"args": [
"-y",
"@chartone/mcp"
],
"command": "npx"
}
}
}
This one needs environment variables set before it will start:
CHARTONE_API_KEY (Optional API key for higher quota and no watermark. Anonymous mode works without a key — charts return watermarked with a 7-day URL.).
The author declared them in the registry entry; get the values from the project itself.
Self-hosted MCP server for unified IMAP/SMTP mailbox access: read, list, and send email.
Render markdown into email-safe HTML, lint drafts for deliverability problems, and preview emails.
Render HTML/.eml emails in real Gmail, Outlook & Yahoo web clients and screenshot them
Filtered, read-only IMAP and Gmail archived to disk as .eml + markdown, served over MCP.
Fully-managed email as MCP tools - register domains, real mailboxes, send and receive mail.
Render LaTeX math as pure Unicode text art for terminals, code comments, and emails.
Send email, look up public IP information, and convert files to Markdown through SendSoon.
Send email, look up public IP information, and convert files to Markdown through SendSoon.
Answers built from our own checks of this server.