MCP server for Siglio. Lets an AI assistant send documents for e-signature by email or text.
Connect Runs on your machine
claude mcp add siglio-mcp -e SIGLIO_API_KEY=<SIGLIO_API_KEY> -e SIGLIO_ALLOW_LIVE=<SIGLIO_ALLOW_LIVE> -- npx -y [email protected]{
"mcpServers": {
"siglio-mcp": {
"command": "npx",
"args": [
"-y",
"[email protected]"
],
"env": {
"SIGLIO_API_KEY": "<SIGLIO_API_KEY>",
"SIGLIO_ALLOW_LIVE": "<SIGLIO_ALLOW_LIVE>"
}
}
}
}{
"mcpServers": {
"siglio-mcp": {
"command": "npx",
"args": [
"-y",
"[email protected]"
],
"env": {
"SIGLIO_API_KEY": "<SIGLIO_API_KEY>",
"SIGLIO_ALLOW_LIVE": "<SIGLIO_ALLOW_LIVE>"
}
}
}
}{
"servers": {
"siglio-mcp": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"[email protected]"
],
"env": {
"SIGLIO_API_KEY": "<SIGLIO_API_KEY>",
"SIGLIO_ALLOW_LIVE": "<SIGLIO_ALLOW_LIVE>"
}
}
}
}Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.
Tools
This server runs locally, so its tools are listed by your MCP client once it starts.
Environment variables
| Name | Description |
|---|---|
SIGLIO_API_KEYRequired, secret | Your Siglio API key. Sandbox keys start with sig_sandbox_ and live keys start with sig_live_. Get one at https://esigndev.com |
SIGLIO_ALLOW_LIVEOptional | Set to true to allow a live key. Without it, live keys are refused and only sandbox keys will run. Leave unset while testing. |
Details
| Package | [email protected] (NPM, stdio) |
| First published | 1 Oct 2026 |
| Last updated | 1 Oct 2026 |
| Registry name | com.esigndev/siglio-mcp |
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